Clean up error codes implementation

pkg/analyzer/lib/src/generated/error.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// This code was auto-generated, is not intended to be edited, and is subject to
-// significant change. Please see the README file for more information.
-
 library engine.error;
 
 import 'dart:collection';
 import 'java_core.dart';
 import 'source.dart';
 import 'scanner.dart' show Token;
 import 'ast.dart' show AstNode;
 import 'element.dart';
 
 /**
@@ skipping 262 matching lines @@
    * @param value the new value of the given property
    */
   void setProperty(ErrorProperty property, Object value) {
     _propertyMap[property] = value;
   }
 }
 
 /**
  * The enumeration `AngularCode` defines Angular specific problems.
  */
-class AngularCode extends Enum<AngularCode> implements ErrorCode {
-  static const AngularCode CANNOT_PARSE_SELECTOR = const AngularCode('CANNOT_PARSE_SELECTOR', 0, "The selector '{0}' cannot be parsed");
+class AngularCode extends ErrorCode {
+  static const AngularCode CANNOT_PARSE_SELECTOR
+      = const AngularCode(
+          'CANNOT_PARSE_SELECTOR',
+          "The selector '{0}' cannot be parsed");
 
-  static const AngularCode INVALID_FORMATTER_NAME = const AngularCode('INVALID_FORMATTER_NAME', 1, "Formatter name must be a simple identifier");
+  static const AngularCode INVALID_FORMATTER_NAME
+      = const AngularCode(
+          'INVALID_FORMATTER_NAME',
+          "Formatter name must be a simple identifier");
 
-  static const AngularCode INVALID_PROPERTY_KIND = const AngularCode('INVALID_PROPERTY_KIND', 2, "Unknown property binding kind '{0}', use one of the '@', '=>', '=>!' or '<=>'");
+  static const AngularCode INVALID_PROPERTY_KIND
+      = const AngularCode(
+          'INVALID_PROPERTY_KIND',
+          "Unknown property binding kind '{0}', use one of the '@', '=>', '=>!' or '<=>'");
 
-  static const AngularCode INVALID_PROPERTY_FIELD = const AngularCode('INVALID_PROPERTY_FIELD', 3, "Unknown property field '{0}'");
+  static const AngularCode INVALID_PROPERTY_FIELD
+      = const AngularCode(
+          'INVALID_PROPERTY_FIELD',
+          "Unknown property field '{0}'");
 
-  static const AngularCode INVALID_PROPERTY_MAP = const AngularCode('INVALID_PROPERTY_MAP', 4, "Argument 'map' must be a constant map literal");
+  static const AngularCode INVALID_PROPERTY_MAP
+      = const AngularCode(
+          'INVALID_PROPERTY_MAP',
+          "Argument 'map' must be a constant map literal");
 
-  static const AngularCode INVALID_PROPERTY_NAME = const AngularCode('INVALID_PROPERTY_NAME', 5, "Property name must be a string literal");
+  static const AngularCode INVALID_PROPERTY_NAME
+      = const AngularCode(
+          'INVALID_PROPERTY_NAME',
+          "Property name must be a string literal");
 
-  static const AngularCode INVALID_PROPERTY_SPEC = const AngularCode('INVALID_PROPERTY_SPEC', 6, "Property binding specification must be a string literal");
+  static const AngularCode INVALID_PROPERTY_SPEC
+      = const AngularCode(
+          'INVALID_PROPERTY_SPEC',
+          "Property binding specification must be a string literal");
 
-  static const AngularCode INVALID_REPEAT_SYNTAX = const AngularCode('INVALID_REPEAT_SYNTAX', 7, "Expected statement in form '_item_ in _collection_ [tracked by _id_]'");
+  static const AngularCode INVALID_REPEAT_SYNTAX
+      = const AngularCode(
+          'INVALID_REPEAT_SYNTAX',
+          "Expected statement in form '_item_ in _collection_ [tracked by _id_]'");
 
-  static const AngularCode INVALID_REPEAT_ITEM_SYNTAX = const AngularCode('INVALID_REPEAT_ITEM_SYNTAX', 8, "Item must by identifier or in '(_key_, _value_)' pair.");
+  static const AngularCode INVALID_REPEAT_ITEM_SYNTAX
+      = const AngularCode(
+          'INVALID_REPEAT_ITEM_SYNTAX',
+          "Item must by identifier or in '(_key_, _value_)' pair.");
 
-  static const AngularCode INVALID_URI = const AngularCode('INVALID_URI', 9, "Invalid URI syntax: '{0}'");
+  static const AngularCode INVALID_URI
+      = const AngularCode(
+          'INVALID_URI',
+          "Invalid URI syntax: '{0}'");
 
-  static const AngularCode MISSING_FORMATTER_COLON = const AngularCode('MISSING_FORMATTER_COLON', 10, "Missing ':' before formatter argument");
+  static const AngularCode MISSING_FORMATTER_COLON
+      = const AngularCode(
+          'MISSING_FORMATTER_COLON',
+          "Missing ':' before formatter argument");
 
-  static const AngularCode MISSING_NAME = const AngularCode('MISSING_NAME', 11, "Argument 'name' must be provided");
+  static const AngularCode MISSING_NAME
+      = const AngularCode(
+          'MISSING_NAME',
+          "Argument 'name' must be provided");
 
-  static const AngularCode MISSING_PUBLISH_AS = const AngularCode('MISSING_PUBLISH_AS', 12, "Argument 'publishAs' must be provided");
+  static const AngularCode MISSING_PUBLISH_AS
+      = const AngularCode(
+          'MISSING_PUBLISH_AS',
+          "Argument 'publishAs' must be provided");
 
-  static const AngularCode MISSING_SELECTOR = const AngularCode('MISSING_SELECTOR', 13, "Argument 'selector' must be provided");
+  static const AngularCode MISSING_SELECTOR
+      = const AngularCode(
+          'MISSING_SELECTOR',
+          "Argument 'selector' must be provided");
 
-  static const AngularCode URI_DOES_NOT_EXIST = const AngularCode('URI_DOES_NOT_EXIST', 14, "Target of URI does not exist: '{0}'");
-
-  static const List<AngularCode> values = const [
-      CANNOT_PARSE_SELECTOR,
-      INVALID_FORMATTER_NAME,
-      INVALID_PROPERTY_KIND,
-      INVALID_PROPERTY_FIELD,
-      INVALID_PROPERTY_MAP,
-      INVALID_PROPERTY_NAME,
-      INVALID_PROPERTY_SPEC,
-      INVALID_REPEAT_SYNTAX,
-      INVALID_REPEAT_ITEM_SYNTAX,
-      INVALID_URI,
-      MISSING_FORMATTER_COLON,
-      MISSING_NAME,
-      MISSING_PUBLISH_AS,
-      MISSING_SELECTOR,
-      URI_DOES_NOT_EXIST];
+  static const AngularCode URI_DOES_NOT_EXIST
+      = const AngularCode(
+          'URI_DOES_NOT_EXIST',
+          "Target of URI does not exist: '{0}'");
 
   /**
-   * The template used to create the message to be displayed for this error.
+   * Initialize a newly created error code to have the given [name]. The message
+   * associated with the error will be created from the given [message]
+   * template. The correction associated with the error will be created from the
+   * given [correction] template.
    */
-  final String message;
-
-  /**
-   * Initialize a newly created error code to have the given message.
-   *
-   * @param message the message template used to create the message to be displayed for the error
-   */
-  const AngularCode(String name, int ordinal, this.message) : super(name, ordinal);
-
-  @override
-  String get correction => null;
+  const AngularCode(String name, String message, [String correction])
+      : super(name, message, correction);
 
   @override
   ErrorSeverity get errorSeverity => ErrorSeverity.INFO;
 
   @override
   ErrorType get type => ErrorType.ANGULAR;
-
-  @override
-  String get uniqueName => "$runtimeType.$name";
 }
 
 /**
  * Instances of the class `BooleanErrorListener` implement a listener that keeps track of
  * whether an error has been reported to it.
  */
 class BooleanErrorListener implements AnalysisErrorListener {
   /**
    * A flag indicating whether an error has been reported to this listener.
    */
   bool _errorReported = false;
 
   /**
    * Return `true` if an error has been reported to this listener.
    *
    * @return `true` if an error has been reported to this listener
    */
   bool get errorReported => _errorReported;
 
   @override
   void onError(AnalysisError error) {
     _errorReported = true;
   }
 }
 
 /**
- * The enumeration `CompileTimeErrorCode` defines the error codes used for compile time errors
- * caused by constant evaluation that would throw an exception when run in checked mode. The client
- * of the analysis engine is responsible for determining how these errors should be presented to the
- * user (for example, a command-line compiler might elect to treat these errors differently
- * depending whether it is compiling it "checked" mode).
+ * The enumeration `CompileTimeErrorCode` defines the error codes used for
+ * compile time errors caused by constant evaluation that would throw an
+ * exception when run in checked mode. The client of the analysis engine is
+ * responsible for determining how these errors should be presented to the user
+ * (for example, a command-line compiler might elect to treat these errors
+ * differently depending whether it is compiling it "checked" mode).
  */
-class CheckedModeCompileTimeErrorCode extends Enum<CheckedModeCompileTimeErrorCode> implements ErrorCode {
+class CheckedModeCompileTimeErrorCode extends ErrorCode {
   // TODO(paulberry): improve the text of these error messages so that it's
   // clear to the user that the error is coming from constant evaluation (and
   // hence the constant needs to be a subtype of the annotated type) as opposed
   // to static type analysis (which only requires that the two types be
   // assignable).  Also consider populating the "correction" field for these
   // errors.
 
   /**
-   * 12.11.2 Const: It is a compile-time error if evaluation of a constant object results in an
-   * uncaught exception being thrown.
-   */
-  static const CheckedModeCompileTimeErrorCode CONST_CONSTRUCTOR_FIELD_TYPE_MISMATCH =
-      const CheckedModeCompileTimeErrorCode.con1(
+   * 12.11.2 Const: It is a compile-time error if evaluation of a constant
+   * object results in an uncaught exception being thrown.
+   */
+  static const CheckedModeCompileTimeErrorCode CONST_CONSTRUCTOR_FIELD_TYPE_MISMATCH
+      = const CheckedModeCompileTimeErrorCode(
           'CONST_CONSTRUCTOR_FIELD_TYPE_MISMATCH',
-          0,
           "The object type '{0}' cannot be assigned to the field '{1}', which has type '{2}'");
 
   /**
-   * 12.11.2 Const: It is a compile-time error if evaluation of a constant object results in an
-   * uncaught exception being thrown.
-   */
-  static const CheckedModeCompileTimeErrorCode CONST_CONSTRUCTOR_PARAM_TYPE_MISMATCH =
-      const CheckedModeCompileTimeErrorCode.con1(
+   * 12.11.2 Const: It is a compile-time error if evaluation of a constant
+   * object results in an uncaught exception being thrown.
+   */
+  static const CheckedModeCompileTimeErrorCode CONST_CONSTRUCTOR_PARAM_TYPE_MISMATCH
+      = const CheckedModeCompileTimeErrorCode(
           'CONST_CONSTRUCTOR_PARAM_TYPE_MISMATCH',
-          1,
           "The object type '{0}' cannot be assigned to a parameter of type '{1}'");
 
   /**
-   * 7.6.1 Generative Constructors: In checked mode, it is a dynamic type error if o is not
-   * <b>null</b> and the interface of the class of <i>o</i> is not a subtype of the static type of
-   * the field <i>v</i>.
-   *
-   * 12.11.2 Const: It is a compile-time error if evaluation of a constant object results in an
-   * uncaught exception being thrown.
+   * 7.6.1 Generative Constructors: In checked mode, it is a dynamic type error
+   * if o is not <b>null</b> and the interface of the class of <i>o</i> is not a
+   * subtype of the static type of the field <i>v</i>.
+   *
+   * 12.11.2 Const: It is a compile-time error if evaluation of a constant
+   * object results in an uncaught exception being thrown.
    *
    * @param initializerType the name of the type of the initializer expression
    * @param fieldType the name of the type of the field
    */
-  static const CheckedModeCompileTimeErrorCode CONST_FIELD_INITIALIZER_NOT_ASSIGNABLE = const CheckedModeCompileTimeErrorCode.con1('CONST_FIELD_INITIALIZER_NOT_ASSIGNABLE', 2, "The initializer type '{0}' cannot be assigned to the field type '{1}'");
-
-  /**
-   * 12.6 Lists: A run-time list literal &lt;<i>E</i>&gt; [<i>e<sub>1</sub></i> ...
+  static const CheckedModeCompileTimeErrorCode CONST_FIELD_INITIALIZER_NOT_ASSIGNABLE
+      = const CheckedModeCompileTimeErrorCode(
+          'CONST_FIELD_INITIALIZER_NOT_ASSIGNABLE',
+          "The initializer type '{0}' cannot be assigned to the field type '{1}'");
+
+  /**
+   * 12.6 Lists: A run-time list literal &lt;<i>E</i>&gt; [<i>e<sub>1</sub></i>
+   * ... <i>e<sub>n</sub></i>] is evaluated as follows:
+   * * The operator []= is invoked on <i>a</i> with first argument <i>i</i> and
+   *   second argument <i>o<sub>i+1</sub></i><i>, 1 &lt;= i &lt;= n</i>
+   *
+   * 12.14.2 Binding Actuals to Formals: Let <i>T<sub>i</sub></i> be the static
+   * type of <i>a<sub>i</sub></i>, let <i>S<sub>i</sub></i> be the type of
+   * <i>p<sub>i</sub>, 1 &lt;= i &lt;= n+k</i> and let <i>S<sub>q</sub></i> be
+   * the type of the named parameter <i>q</i> of <i>f</i>. It is a static
+   * warning if <i>T<sub>j</sub></i> may not be assigned to <i>S<sub>j</sub>,
+   * 1 &lt;= j &lt;= m</i>.
+   */
+  static const CheckedModeCompileTimeErrorCode LIST_ELEMENT_TYPE_NOT_ASSIGNABLE
+      = const CheckedModeCompileTimeErrorCode(
+          'LIST_ELEMENT_TYPE_NOT_ASSIGNABLE',
+          "The element type '{0}' cannot be assigned to the list type '{1}'");
+
+  /**
+   * 12.7 Map: A run-time map literal &lt;<i>K</i>, <i>V</i>&gt;
+   * [<i>k<sub>1</sub></i> : <i>e<sub>1</sub></i> ... <i>k<sub>n</sub></i> :
    * <i>e<sub>n</sub></i>] is evaluated as follows:
-   * * The operator []= is invoked on <i>a</i> with first argument <i>i</i> and second argument
-   * <i>o<sub>i+1</sub></i><i>, 1 &lt;= i &lt;= n</i>
-   *
-   * 12.14.2 Binding Actuals to Formals: Let <i>T<sub>i</sub></i> be the static type of
-   * <i>a<sub>i</sub></i>, let <i>S<sub>i</sub></i> be the type of <i>p<sub>i</sub>, 1 &lt;= i &lt;=
-   * n+k</i> and let <i>S<sub>q</sub></i> be the type of the named parameter <i>q</i> of <i>f</i>.
-   * It is a static warning if <i>T<sub>j</sub></i> may not be assigned to <i>S<sub>j</sub>, 1 &lt;=
-   * j &lt;= m</i>.
-   */
-  static const CheckedModeCompileTimeErrorCode LIST_ELEMENT_TYPE_NOT_ASSIGNABLE = const CheckedModeCompileTimeErrorCode.con1('LIST_ELEMENT_TYPE_NOT_ASSIGNABLE', 3, "The element type '{0}' cannot be assigned to the list type '{1}'");
-
-  /**
-   * 12.7 Map: A run-time map literal &lt;<i>K</i>, <i>V</i>&gt; [<i>k<sub>1</sub></i> :
-   * <i>e<sub>1</sub></i> ... <i>k<sub>n</sub></i> : <i>e<sub>n</sub></i>] is evaluated as follows:
-   * * The operator []= is invoked on <i>m</i> with first argument <i>k<sub>i</sub></i> and second
-   * argument <i>e<sub>i</sub></i><i>, 1 &lt;= i &lt;= n</i>
-   *
-   * 12.14.2 Binding Actuals to Formals: Let <i>T<sub>i</sub></i> be the static type of
-   * <i>a<sub>i</sub></i>, let <i>S<sub>i</sub></i> be the type of <i>p<sub>i</sub>, 1 &lt;= i &lt;=
-   * n+k</i> and let <i>S<sub>q</sub></i> be the type of the named parameter <i>q</i> of <i>f</i>.
-   * It is a static warning if <i>T<sub>j</sub></i> may not be assigned to <i>S<sub>j</sub>, 1 &lt;=
-   * j &lt;= m</i>.
-   */
-  static const CheckedModeCompileTimeErrorCode MAP_KEY_TYPE_NOT_ASSIGNABLE = const CheckedModeCompileTimeErrorCode.con1('MAP_KEY_TYPE_NOT_ASSIGNABLE', 4, "The element type '{0}' cannot be assigned to the map key type '{1}'");
-
-  /**
-   * 12.7 Map: A run-time map literal &lt;<i>K</i>, <i>V</i>&gt; [<i>k<sub>1</sub></i> :
-   * <i>e<sub>1</sub></i> ... <i>k<sub>n</sub></i> : <i>e<sub>n</sub></i>] is evaluated as follows:
-   * * The operator []= is invoked on <i>m</i> with first argument <i>k<sub>i</sub></i> and second
-   * argument <i>e<sub>i</sub></i><i>, 1 &lt;= i &lt;= n</i>
-   *
-   * 12.14.2 Binding Actuals to Formals: Let <i>T<sub>i</sub></i> be the static type of
-   * <i>a<sub>i</sub></i>, let <i>S<sub>i</sub></i> be the type of <i>p<sub>i</sub>, 1 &lt;= i &lt;=
-   * n+k</i> and let <i>S<sub>q</sub></i> be the type of the named parameter <i>q</i> of <i>f</i>.
-   * It is a static warning if <i>T<sub>j</sub></i> may not be assigned to <i>S<sub>j</sub>, 1 &lt;=
-   * j &lt;= m</i>.
-   */
-  static const CheckedModeCompileTimeErrorCode MAP_VALUE_TYPE_NOT_ASSIGNABLE = const CheckedModeCompileTimeErrorCode.con1('MAP_VALUE_TYPE_NOT_ASSIGNABLE', 5, "The element type '{0}' cannot be assigned to the map value type '{1}'");
-
-  /**
-   * 12.11.2 Const: It is a compile-time error if evaluation of a constant object results in an
-   * uncaught exception being thrown.
-   */
-  static const CheckedModeCompileTimeErrorCode VARIABLE_TYPE_MISMATCH =
-      const CheckedModeCompileTimeErrorCode.con1(
+   * * The operator []= is invoked on <i>m</i> with first argument
+   *   <i>k<sub>i</sub></i> and second argument <i>e<sub>i</sub></i><i>, 1 &lt;=
+   *   i &lt;= n</i>
+   *
+   * 12.14.2 Binding Actuals to Formals: Let <i>T<sub>i</sub></i> be the static
+   * type of <i>a<sub>i</sub></i>, let <i>S<sub>i</sub></i> be the type of
+   * <i>p<sub>i</sub>, 1 &lt;= i &lt;= n+k</i> and let <i>S<sub>q</sub></i> be
+   * the type of the named parameter <i>q</i> of <i>f</i>. It is a static
+   * warning if <i>T<sub>j</sub></i> may not be assigned to <i>S<sub>j</sub>, 1
+   * &lt;= j &lt;= m</i>.
+   */
+  static const CheckedModeCompileTimeErrorCode MAP_KEY_TYPE_NOT_ASSIGNABLE
+      = const CheckedModeCompileTimeErrorCode(
+          'MAP_KEY_TYPE_NOT_ASSIGNABLE',
+          "The element type '{0}' cannot be assigned to the map key type '{1}'");
+
+  /**
+   * 12.7 Map: A run-time map literal &lt;<i>K</i>, <i>V</i>&gt;
+   * [<i>k<sub>1</sub></i> : <i>e<sub>1</sub></i> ... <i>k<sub>n</sub></i> :
+   * <i>e<sub>n</sub></i>] is evaluated as follows:
+   * * The operator []= is invoked on <i>m</i> with first argument
+   *   <i>k<sub>i</sub></i> and second argument <i>e<sub>i</sub></i><i>, 1 &lt;=
+   *   i &lt;= n</i>
+   *
+   * 12.14.2 Binding Actuals to Formals: Let <i>T<sub>i</sub></i> be the static
+   * type of <i>a<sub>i</sub></i>, let <i>S<sub>i</sub></i> be the type of
+   * <i>p<sub>i</sub>, 1 &lt;= i &lt;= n+k</i> and let <i>S<sub>q</sub></i> be
+   * the type of the named parameter <i>q</i> of <i>f</i>. It is a static
+   * warning if <i>T<sub>j</sub></i> may not be assigned to <i>S<sub>j</sub>, 1
+   * &lt;= j &lt;= m</i>.
+   */
+  static const CheckedModeCompileTimeErrorCode MAP_VALUE_TYPE_NOT_ASSIGNABLE
+      = const CheckedModeCompileTimeErrorCode(
+          'MAP_VALUE_TYPE_NOT_ASSIGNABLE',
+          "The element type '{0}' cannot be assigned to the map value type '{1}'");
+
+  /**
+   * 12.11.2 Const: It is a compile-time error if evaluation of a constant
+   * object results in an uncaught exception being thrown.
+   */
+  static const CheckedModeCompileTimeErrorCode VARIABLE_TYPE_MISMATCH
+      = const CheckedModeCompileTimeErrorCode(
           'VARIABLE_TYPE_MISMATCH',
-          6,
           "The object type '{0}' cannot be assigned to a variable of type '{1}'");
 
-  static const List<CheckedModeCompileTimeErrorCode> values = const [
-      CONST_CONSTRUCTOR_FIELD_TYPE_MISMATCH,
-      CONST_CONSTRUCTOR_PARAM_TYPE_MISMATCH,
-      CONST_FIELD_INITIALIZER_NOT_ASSIGNABLE,
-      LIST_ELEMENT_TYPE_NOT_ASSIGNABLE,
-      MAP_KEY_TYPE_NOT_ASSIGNABLE,
-      MAP_VALUE_TYPE_NOT_ASSIGNABLE,
-      VARIABLE_TYPE_MISMATCH];
-
-  /**
-   * The template used to create the message to be displayed for this error.
-   */
-  final String message;
-
-  /**
-   * The template used to create the correction to be displayed for this error, or `null` if
-   * there is no correction information for this error.
-   */
-  final String correction;
-
-  /**
-   * Initialize a newly created error code to have the given message.
-   *
-   * @param message the message template used to create the message to be displayed for the error
-   */
-  const CheckedModeCompileTimeErrorCode.con1(String name, int ordinal, String message) : this.con2(name, ordinal, message, null);
-
-  /**
-   * Initialize a newly created error code to have the given message and correction.
-   *
-   * @param message the template used to create the message to be displayed for the error
-   * @param correction the template used to create the correction to be displayed for the error
-   */
-  const CheckedModeCompileTimeErrorCode.con2(String name, int ordinal, this.message, this.correction) : super(name, ordinal);
+  /**
+   * Initialize a newly created error code to have the given [name]. The message
+   * associated with the error will be created from the given [message]
+   * template. The correction associated with the error will be created from the
+   * given [correction] template.
+   */
+  const CheckedModeCompileTimeErrorCode(String name, String message, [String correction])
+      : super(name, message, correction);
 
   @override
   ErrorSeverity get errorSeverity => ErrorType.CHECKED_MODE_COMPILE_TIME_ERROR.severity;
 
   @override
   ErrorType get type => ErrorType.CHECKED_MODE_COMPILE_TIME_ERROR;
-
-  @override
-  String get uniqueName => "$runtimeType.$name";
 }
 
 /**
- * The enumeration `CompileTimeErrorCode` defines the error codes used for compile time
- * errors. The convention for this class is for the name of the error code to indicate the problem
- * that caused the error to be generated and for the error message to explain what is wrong and,
- * when appropriate, how the problem can be corrected.
+ * The enumeration `CompileTimeErrorCode` defines the error codes used for
+ * compile time errors. The convention for this class is for the name of the
+ * error code to indicate the problem that caused the error to be generated and
+ * for the error message to explain what is wrong and, when appropriate, how the
+ * problem can be corrected.
  */
-class CompileTimeErrorCode extends Enum<CompileTimeErrorCode> implements ErrorCode {
-  /**
-   * Enum proposal: It is also a compile-time error to explicitly instantiate an enum via 'new' or
-   * 'const' or to access its private fields.
-   */
-  static const CompileTimeErrorCode ACCESS_PRIVATE_ENUM_FIELD = const CompileTimeErrorCode.con1('ACCESS_PRIVATE_ENUM_FIELD', 0, "The private fields of an enum cannot be accessed, even within the same library");
-
-  /**
-   * 14.2 Exports: It is a compile-time error if a name <i>N</i> is re-exported by a library
-   * <i>L</i> and <i>N</i> is introduced into the export namespace of <i>L</i> by more than one
-   * export, unless each all exports refer to same declaration for the name N.
+class CompileTimeErrorCode extends ErrorCode {
+  /**
+   * Enum proposal: It is also a compile-time error to explicitly instantiate an
+   * enum via 'new' or 'const' or to access its private fields.
+   */
+  static const CompileTimeErrorCode ACCESS_PRIVATE_ENUM_FIELD = const CompileTimeErrorCode('ACCESS_PRIVATE_ENUM_FIELD', "The private fields of an enum cannot be accessed, even within the same library");
+
+  /**
+   * 14.2 Exports: It is a compile-time error if a name <i>N</i> is re-exported
+   * by a library <i>L</i> and <i>N</i> is introduced into the export namespace
+   * of <i>L</i> by more than one export, unless each all exports refer to same
+   * declaration for the name N.
    *
    * @param ambiguousElementName the name of the ambiguous element
-   * @param firstLibraryName the name of the first library that the type is found
-   * @param secondLibraryName the name of the second library that the type is found
-   */
-  static const CompileTimeErrorCode AMBIGUOUS_EXPORT = const CompileTimeErrorCode.con1('AMBIGUOUS_EXPORT', 1, "The name '{0}' is defined in the libraries '{1}' and '{2}'");
-
-  /**
-   * 12.33 Argument Definition Test: It is a compile time error if <i>v</i> does not denote a formal
-   * parameter.
-   *
-   * @param the name of the identifier in the argument definition test that is not a parameter
-   */
-  static const CompileTimeErrorCode ARGUMENT_DEFINITION_TEST_NON_PARAMETER = const CompileTimeErrorCode.con1('ARGUMENT_DEFINITION_TEST_NON_PARAMETER', 2, "'{0}' is not a parameter");
-
-  /**
-   * ?? Asynchronous For-in: It is a compile-time error if an asynchronous for-in statement appears
-   * inside a synchronous function.
-   */
-  static const CompileTimeErrorCode ASYNC_FOR_IN_WRONG_CONTEXT = const CompileTimeErrorCode.con1('ASYNC_FOR_IN_WRONG_CONTEXT', 3, "The asynchronous for-in can only be used in a function marked with async or async*");
-
-  /**
-   * ??: It is a compile-time error if the function immediately enclosing a is not declared
-   * asynchronous.
-   */
-  static const CompileTimeErrorCode AWAIT_IN_WRONG_CONTEXT = const CompileTimeErrorCode.con1('AWAIT_IN_WRONG_CONTEXT', 4, "The await expression can only be used in a function marked as async or async*");
-
-  /**
-   * 12.30 Identifier Reference: It is a compile-time error to use a built-in identifier other than
-   * dynamic as a type annotation.
-   */
-  static const CompileTimeErrorCode BUILT_IN_IDENTIFIER_AS_TYPE = const CompileTimeErrorCode.con1('BUILT_IN_IDENTIFIER_AS_TYPE', 5, "The built-in identifier '{0}' cannot be as a type");
-
-  /**
-   * 12.30 Identifier Reference: It is a compile-time error if a built-in identifier is used as the
-   * declared name of a class, type parameter or type alias.
-   */
-  static const CompileTimeErrorCode BUILT_IN_IDENTIFIER_AS_TYPE_NAME = const CompileTimeErrorCode.con1('BUILT_IN_IDENTIFIER_AS_TYPE_NAME', 6, "The built-in identifier '{0}' cannot be used as a type name");
-
-  /**
-   * 12.30 Identifier Reference: It is a compile-time error if a built-in identifier is used as the
-   * declared name of a class, type parameter or type alias.
-   */
-  static const CompileTimeErrorCode BUILT_IN_IDENTIFIER_AS_TYPEDEF_NAME = const CompileTimeErrorCode.con1('BUILT_IN_IDENTIFIER_AS_TYPEDEF_NAME', 7, "The built-in identifier '{0}' cannot be used as a type alias name");
-
-  /**
-   * 12.30 Identifier Reference: It is a compile-time error if a built-in identifier is used as the
-   * declared name of a class, type parameter or type alias.
-   */
-  static const CompileTimeErrorCode BUILT_IN_IDENTIFIER_AS_TYPE_PARAMETER_NAME = const CompileTimeErrorCode.con1('BUILT_IN_IDENTIFIER_AS_TYPE_PARAMETER_NAME', 8, "The built-in identifier '{0}' cannot be used as a type parameter name");
-
-  /**
-   * 13.9 Switch: It is a compile-time error if the class <i>C</i> implements the operator
-   * <i>==</i>.
-   */
-  static const CompileTimeErrorCode CASE_EXPRESSION_TYPE_IMPLEMENTS_EQUALS = const CompileTimeErrorCode.con1('CASE_EXPRESSION_TYPE_IMPLEMENTS_EQUALS', 9, "The switch case expression type '{0}' cannot override the == operator");
-
-  /**
-   * 12.1 Constants: It is a compile-time error if evaluation of a compile-time constant would raise
+   * @param firstLibraryName the name of the first library that the type is
+   *        found
+   * @param secondLibraryName the name of the second library that the type is
+   *        found
+   */
+  static const CompileTimeErrorCode AMBIGUOUS_EXPORT = const CompileTimeErrorCode('AMBIGUOUS_EXPORT', "The name '{0}' is defined in the libraries '{1}' and '{2}'");
+
+  /**
+   * 12.33 Argument Definition Test: It is a compile time error if <i>v</i> does
+   * not denote a formal parameter.
+   *
+   * @param the name of the identifier in the argument definition test that is
+   *        not a parameter
+   */
+  static const CompileTimeErrorCode ARGUMENT_DEFINITION_TEST_NON_PARAMETER = const CompileTimeErrorCode('ARGUMENT_DEFINITION_TEST_NON_PARAMETER', "'{0}' is not a parameter");
+
+  /**
+   * ?? Asynchronous For-in: It is a compile-time error if an asynchronous
+   * for-in statement appears inside a synchronous function.
+   */
+  static const CompileTimeErrorCode ASYNC_FOR_IN_WRONG_CONTEXT = const CompileTimeErrorCode('ASYNC_FOR_IN_WRONG_CONTEXT', "The asynchronous for-in can only be used in a function marked with async or async*");
+
+  /**
+   * ??: It is a compile-time error if the function immediately enclosing a is
+   * not declared asynchronous.
+   */
+  static const CompileTimeErrorCode AWAIT_IN_WRONG_CONTEXT = const CompileTimeErrorCode('AWAIT_IN_WRONG_CONTEXT', "The await expression can only be used in a function marked as async or async*");
+
+  /**
+   * 12.30 Identifier Reference: It is a compile-time error to use a built-in
+   * identifier other than dynamic as a type annotation.
+   */
+  static const CompileTimeErrorCode BUILT_IN_IDENTIFIER_AS_TYPE = const CompileTimeErrorCode('BUILT_IN_IDENTIFIER_AS_TYPE', "The built-in identifier '{0}' cannot be as a type");
+
+  /**
+   * 12.30 Identifier Reference: It is a compile-time error if a built-in
+   * identifier is used as the declared name of a class, type parameter or type
+   * alias.
+   */
+  static const CompileTimeErrorCode BUILT_IN_IDENTIFIER_AS_TYPE_NAME = const CompileTimeErrorCode('BUILT_IN_IDENTIFIER_AS_TYPE_NAME', "The built-in identifier '{0}' cannot be used as a type name");
+
+  /**
+   * 12.30 Identifier Reference: It is a compile-time error if a built-in
+   * identifier is used as the declared name of a class, type parameter or type
+   * alias.
+   */
+  static const CompileTimeErrorCode BUILT_IN_IDENTIFIER_AS_TYPEDEF_NAME = const CompileTimeErrorCode('BUILT_IN_IDENTIFIER_AS_TYPEDEF_NAME', "The built-in identifier '{0}' cannot be used as a type alias name");
+
+  /**
+   * 12.30 Identifier Reference: It is a compile-time error if a built-in
+   * identifier is used as the declared name of a class, type parameter or type
+   * alias.
+   */
+  static const CompileTimeErrorCode BUILT_IN_IDENTIFIER_AS_TYPE_PARAMETER_NAME = const CompileTimeErrorCode('BUILT_IN_IDENTIFIER_AS_TYPE_PARAMETER_NAME', "The built-in identifier '{0}' cannot be used as a type parameter name");
+
+  /**
+   * 13.9 Switch: It is a compile-time error if the class <i>C</i> implements
+   * the operator <i>==</i>.
+   */
+  static const CompileTimeErrorCode CASE_EXPRESSION_TYPE_IMPLEMENTS_EQUALS = const CompileTimeErrorCode('CASE_EXPRESSION_TYPE_IMPLEMENTS_EQUALS', "The switch case expression type '{0}' cannot override the == operator");
+
+  /**
+   * 12.1 Constants: It is a compile-time error if evaluation of a compile-time
+   * constant would raise
    * an exception.
    */
-  static const CompileTimeErrorCode COMPILE_TIME_CONSTANT_RAISES_EXCEPTION = const CompileTimeErrorCode.con1('COMPILE_TIME_CONSTANT_RAISES_EXCEPTION', 10, "");
-
-  /**
-   * 7.2 Getters: It is a compile-time error if a class has both a getter and a method with the same
-   * name. This restriction holds regardless of whether the getter is defined explicitly or
-   * implicitly, or whether the getter or the method are inherited or not.
-   */
-  static const CompileTimeErrorCode CONFLICTING_GETTER_AND_METHOD = const CompileTimeErrorCode.con1('CONFLICTING_GETTER_AND_METHOD', 11, "Class '{0}' cannot have both getter '{1}.{2}' and method with the same name");
-
-  /**
-   * 7.2 Getters: It is a compile-time error if a class has both a getter and a method with the same
-   * name. This restriction holds regardless of whether the getter is defined explicitly or
-   * implicitly, or whether the getter or the method are inherited or not.
-   */
-  static const CompileTimeErrorCode CONFLICTING_METHOD_AND_GETTER = const CompileTimeErrorCode.con1('CONFLICTING_METHOD_AND_GETTER', 12, "Class '{0}' cannot have both method '{1}.{2}' and getter with the same name");
-
-  /**
-   * 7.6 Constructors: A constructor name always begins with the name of its immediately enclosing
-   * class, and may optionally be followed by a dot and an identifier <i>id</i>. It is a
-   * compile-time error if <i>id</i> is the name of a member declared in the immediately enclosing
-   * class.
-   */
-  static const CompileTimeErrorCode CONFLICTING_CONSTRUCTOR_NAME_AND_FIELD = const CompileTimeErrorCode.con1('CONFLICTING_CONSTRUCTOR_NAME_AND_FIELD', 13, "'{0}' cannot be used to name a constructor and a field in this class");
-
-  /**
-   * 7.6 Constructors: A constructor name always begins with the name of its immediately enclosing
-   * class, and may optionally be followed by a dot and an identifier <i>id</i>. It is a
-   * compile-time error if <i>id</i> is the name of a member declared in the immediately enclosing
-   * class.
-   */
-  static const CompileTimeErrorCode CONFLICTING_CONSTRUCTOR_NAME_AND_METHOD = const CompileTimeErrorCode.con1('CONFLICTING_CONSTRUCTOR_NAME_AND_METHOD', 14, "'{0}' cannot be used to name a constructor and a method in this class");
-
-  /**
-   * 7. Classes: It is a compile time error if a generic class declares a type variable with the
-   * same name as the class or any of its members or constructors.
-   */
-  static const CompileTimeErrorCode CONFLICTING_TYPE_VARIABLE_AND_CLASS = const CompileTimeErrorCode.con1('CONFLICTING_TYPE_VARIABLE_AND_CLASS', 15, "'{0}' cannot be used to name a type varaible in a class with the same name");
-
-  /**
-   * 7. Classes: It is a compile time error if a generic class declares a type variable with the
-   * same name as the class or any of its members or constructors.
-   */
-  static const CompileTimeErrorCode CONFLICTING_TYPE_VARIABLE_AND_MEMBER = const CompileTimeErrorCode.con1('CONFLICTING_TYPE_VARIABLE_AND_MEMBER', 16, "'{0}' cannot be used to name a type varaible and member in this class");
-
-  /**
-   * 12.11.2 Const: It is a compile-time error if evaluation of a constant object results in an
-   * uncaught exception being thrown.
-   */
-  static const CompileTimeErrorCode CONST_CONSTRUCTOR_THROWS_EXCEPTION = const CompileTimeErrorCode.con1('CONST_CONSTRUCTOR_THROWS_EXCEPTION', 17, "'const' constructors cannot throw exceptions");
-
-  /**
-   * 10.6.3 Constant Constructors: It is a compile-time error if a constant constructor is declared
-   * by a class C if any instance variable declared in C is initialized with an expression that is
-   * not a constant expression.
-   */
-  static const CompileTimeErrorCode CONST_CONSTRUCTOR_WITH_FIELD_INITIALIZED_BY_NON_CONST = const CompileTimeErrorCode.con1('CONST_CONSTRUCTOR_WITH_FIELD_INITIALIZED_BY_NON_CONST', 18, "Can't define the 'const' constructor because the field '{0}' is initialized with a non-constant value");
-
-  /**
-   * 7.6.3 Constant Constructors: The superinitializer that appears, explicitly or implicitly, in
-   * the initializer list of a constant constructor must specify a constant constructor of the
-   * superclass of the immediately enclosing class or a compile-time error occurs.
-   *
-   * 9 Mixins: For each generative constructor named ... an implicitly declared constructor named
-   * ... is declared.
-   */
-  static const CompileTimeErrorCode CONST_CONSTRUCTOR_WITH_MIXIN = const CompileTimeErrorCode.con1('CONST_CONSTRUCTOR_WITH_MIXIN', 19, "Constant constructor cannot be declared for a class with a mixin");
-
-  /**
-   * 7.6.3 Constant Constructors: The superinitializer that appears, explicitly or implicitly, in
-   * the initializer list of a constant constructor must specify a constant constructor of the
-   * superclass of the immediately enclosing class or a compile-time error occurs.
-   */
-  static const CompileTimeErrorCode CONST_CONSTRUCTOR_WITH_NON_CONST_SUPER = const CompileTimeErrorCode.con1('CONST_CONSTRUCTOR_WITH_NON_CONST_SUPER', 20, "Constant constructor cannot call non-constant super constructor of '{0}'");
-
-  /**
-   * 7.6.3 Constant Constructors: It is a compile-time error if a constant constructor is declared
-   * by a class that has a non-final instance variable.
+  static const CompileTimeErrorCode COMPILE_TIME_CONSTANT_RAISES_EXCEPTION = const CompileTimeErrorCode('COMPILE_TIME_CONSTANT_RAISES_EXCEPTION', "");
+
+  /**
+   * 7.2 Getters: It is a compile-time error if a class has both a getter and a
+   * method with the same name. This restriction holds regardless of whether the
+   * getter is defined explicitly or implicitly, or whether the getter or the
+   * method are inherited or not.
+   */
+  static const CompileTimeErrorCode CONFLICTING_GETTER_AND_METHOD = const CompileTimeErrorCode('CONFLICTING_GETTER_AND_METHOD', "Class '{0}' cannot have both getter '{1}.{2}' and method with the same name");
+
+  /**
+   * 7.2 Getters: It is a compile-time error if a class has both a getter and a
+   * method with the same name. This restriction holds regardless of whether the
+   * getter is defined explicitly or implicitly, or whether the getter or the
+   * method are inherited or not.
+   */
+  static const CompileTimeErrorCode CONFLICTING_METHOD_AND_GETTER = const CompileTimeErrorCode('CONFLICTING_METHOD_AND_GETTER', "Class '{0}' cannot have both method '{1}.{2}' and getter with the same name");
+
+  /**
+   * 7.6 Constructors: A constructor name always begins with the name of its
+   * immediately enclosing class, and may optionally be followed by a dot and an
+   * identifier <i>id</i>. It is a compile-time error if <i>id</i> is the name
+   * of a member declared in the immediately enclosing class.
+   */
+  static const CompileTimeErrorCode CONFLICTING_CONSTRUCTOR_NAME_AND_FIELD = const CompileTimeErrorCode('CONFLICTING_CONSTRUCTOR_NAME_AND_FIELD', "'{0}' cannot be used to name a constructor and a field in this class");
+
+  /**
+   * 7.6 Constructors: A constructor name always begins with the name of its
+   * immediately enclosing class, and may optionally be followed by a dot and an
+   * identifier <i>id</i>. It is a compile-time error if <i>id</i> is the name
+   * of a member declared in the immediately enclosing class.
+   */
+  static const CompileTimeErrorCode CONFLICTING_CONSTRUCTOR_NAME_AND_METHOD = const CompileTimeErrorCode('CONFLICTING_CONSTRUCTOR_NAME_AND_METHOD', "'{0}' cannot be used to name a constructor and a method in this class");
+
+  /**
+   * 7. Classes: It is a compile time error if a generic class declares a type
+   * variable with the same name as the class or any of its members or
+   * constructors.
+   */
+  static const CompileTimeErrorCode CONFLICTING_TYPE_VARIABLE_AND_CLASS = const CompileTimeErrorCode('CONFLICTING_TYPE_VARIABLE_AND_CLASS', "'{0}' cannot be used to name a type varaible in a class with the same name");
+
+  /**
+   * 7. Classes: It is a compile time error if a generic class declares a type
+   * variable with the same name as the class or any of its members or
+   * constructors.
+   */
+  static const CompileTimeErrorCode CONFLICTING_TYPE_VARIABLE_AND_MEMBER = const CompileTimeErrorCode('CONFLICTING_TYPE_VARIABLE_AND_MEMBER', "'{0}' cannot be used to name a type varaible and member in this class");
+
+  /**
+   * 12.11.2 Const: It is a compile-time error if evaluation of a constant
+   * object results in an uncaught exception being thrown.
+   */
+  static const CompileTimeErrorCode CONST_CONSTRUCTOR_THROWS_EXCEPTION = const CompileTimeErrorCode('CONST_CONSTRUCTOR_THROWS_EXCEPTION', "'const' constructors cannot throw exceptions");
+
+  /**
+   * 10.6.3 Constant Constructors: It is a compile-time error if a constant
+   * constructor is declared by a class C if any instance variable declared in C
+   * is initialized with an expression that is not a constant expression.
+   */
+  static const CompileTimeErrorCode CONST_CONSTRUCTOR_WITH_FIELD_INITIALIZED_BY_NON_CONST = const CompileTimeErrorCode('CONST_CONSTRUCTOR_WITH_FIELD_INITIALIZED_BY_NON_CONST', "Can't define the 'const' constructor because the field '{0}' is initialized with a non-constant value");
+
+  /**
+   * 7.6.3 Constant Constructors: The superinitializer that appears, explicitly
+   * or implicitly, in the initializer list of a constant constructor must
+   * specify a constant constructor of the superclass of the immediately
+   * enclosing class or a compile-time error occurs.
+   *
+   * 9 Mixins: For each generative constructor named ... an implicitly declared
+   * constructor named ... is declared.
+   */
+  static const CompileTimeErrorCode CONST_CONSTRUCTOR_WITH_MIXIN = const CompileTimeErrorCode('CONST_CONSTRUCTOR_WITH_MIXIN', "Constant constructor cannot be declared for a class with a mixin");
+
+  /**
+   * 7.6.3 Constant Constructors: The superinitializer that appears, explicitly
+   * or implicitly, in the initializer list of a constant constructor must
+   * specify a constant constructor of the superclass of the immediately
+   * enclosing class or a compile-time error occurs.
+   */
+  static const CompileTimeErrorCode CONST_CONSTRUCTOR_WITH_NON_CONST_SUPER = const CompileTimeErrorCode('CONST_CONSTRUCTOR_WITH_NON_CONST_SUPER', "Constant constructor cannot call non-constant super constructor of '{0}'");
+
+  /**
+   * 7.6.3 Constant Constructors: It is a compile-time error if a constant
+   * constructor is declared by a class that has a non-final instance variable.
    *
    * The above refers to both locally declared and inherited instance variables.
    */
-  static const CompileTimeErrorCode CONST_CONSTRUCTOR_WITH_NON_FINAL_FIELD = const CompileTimeErrorCode.con1('CONST_CONSTRUCTOR_WITH_NON_FINAL_FIELD', 21, "Cannot define the 'const' constructor for a class with non-final fields");
+  static const CompileTimeErrorCode CONST_CONSTRUCTOR_WITH_NON_FINAL_FIELD = const CompileTimeErrorCode('CONST_CONSTRUCTOR_WITH_NON_FINAL_FIELD', "Cannot define the 'const' constructor for a class with non-final fields");
 
   /**
    * 12.12.2 Const: It is a compile-time error if <i>T</i> is a deferred type.
    */
-  static const CompileTimeErrorCode CONST_DEFERRED_CLASS = const CompileTimeErrorCode.con1('CONST_DEFERRED_CLASS', 22, "Deferred classes cannot be created with 'const'");
-
-  /**
-   * 6.2 Formal Parameters: It is a compile-time error if a formal parameter is declared as a
-   * constant variable.
-   */
-  static const CompileTimeErrorCode CONST_FORMAL_PARAMETER = const CompileTimeErrorCode.con1('CONST_FORMAL_PARAMETER', 23, "Parameters cannot be 'const'");
-
-  /**
-   * 5 Variables: A constant variable must be initialized to a compile-time constant or a
-   * compile-time error occurs.
-   */
-  static const CompileTimeErrorCode CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE = const CompileTimeErrorCode.con1('CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE', 24, "'const' variables must be constant value");
-
-  /**
-   * 5 Variables: A constant variable must be initialized to a compile-time constant or a
-   * compile-time error occurs.
-   *
-   * 12.1 Constants: A qualified reference to a static constant variable that is not qualified by a
-   * deferred prefix.
-   */
-  static const CompileTimeErrorCode CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE_FROM_DEFERRED_LIBRARY = const CompileTimeErrorCode.con1('CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE_FROM_DEFERRED_LIBRARY', 25, "Constant values from a deferred library cannot be used to initialized a 'const' variable");
-
-  /**
-   * 7.5 Instance Variables: It is a compile-time error if an instance variable is declared to be
-   * constant.
-   */
-  static const CompileTimeErrorCode CONST_INSTANCE_FIELD = const CompileTimeErrorCode.con1('CONST_INSTANCE_FIELD', 26, "Only static fields can be declared as 'const'");
-
-  /**
-   * 12.8 Maps: It is a compile-time error if the key of an entry in a constant map literal is an
-   * instance of a class that implements the operator <i>==</i> unless the key is a string or
-   * integer.
-   */
-  static const CompileTimeErrorCode CONST_MAP_KEY_EXPRESSION_TYPE_IMPLEMENTS_EQUALS = const CompileTimeErrorCode.con1('CONST_MAP_KEY_EXPRESSION_TYPE_IMPLEMENTS_EQUALS', 27, "The constant map entry key expression type '{0}' cannot override the == operator");
-
-  /**
-   * 5 Variables: A constant variable must be initialized to a compile-time constant (12.1) or a
-   * compile-time error occurs.
+  static const CompileTimeErrorCode CONST_DEFERRED_CLASS = const CompileTimeErrorCode('CONST_DEFERRED_CLASS', "Deferred classes cannot be created with 'const'");
+
+  /**
+   * 6.2 Formal Parameters: It is a compile-time error if a formal parameter is
+   * declared as a constant variable.
+   */
+  static const CompileTimeErrorCode CONST_FORMAL_PARAMETER = const CompileTimeErrorCode('CONST_FORMAL_PARAMETER', "Parameters cannot be 'const'");
+
+  /**
+   * 5 Variables: A constant variable must be initialized to a compile-time
+   * constant or a compile-time error occurs.
+   */
+  static const CompileTimeErrorCode CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE = const CompileTimeErrorCode('CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE', "'const' variables must be constant value");
+
+  /**
+   * 5 Variables: A constant variable must be initialized to a compile-time
+   * constant or a compile-time error occurs.
+   *
+   * 12.1 Constants: A qualified reference to a static constant variable that is
+   * not qualified by a deferred prefix.
+   */
+  static const CompileTimeErrorCode CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE_FROM_DEFERRED_LIBRARY = const CompileTimeErrorCode('CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE_FROM_DEFERRED_LIBRARY', "Constant values from a deferred library cannot be used to initialized a 'const' variable");
+
+  /**
+   * 7.5 Instance Variables: It is a compile-time error if an instance variable
+   * is declared to be constant.
+   */
+  static const CompileTimeErrorCode CONST_INSTANCE_FIELD = const CompileTimeErrorCode('CONST_INSTANCE_FIELD', "Only static fields can be declared as 'const'");
+
+  /**
+   * 12.8 Maps: It is a compile-time error if the key of an entry in a constant
+   * map literal is an instance of a class that implements the operator
+   * <i>==</i> unless the key is a string or integer.
+   */
+  static const CompileTimeErrorCode CONST_MAP_KEY_EXPRESSION_TYPE_IMPLEMENTS_EQUALS = const CompileTimeErrorCode('CONST_MAP_KEY_EXPRESSION_TYPE_IMPLEMENTS_EQUALS', "The constant map entry key expression type '{0}' cannot override the == operator");
+
+  /**
+   * 5 Variables: A constant variable must be initialized to a compile-time
+   * constant (12.1) or a compile-time error occurs.
    *
    * @param name the name of the uninitialized final variable
    */
-  static const CompileTimeErrorCode CONST_NOT_INITIALIZED = const CompileTimeErrorCode.con1('CONST_NOT_INITIALIZED', 28, "The const variable '{0}' must be initialized");
-
-  /**
-   * 12.11.2 Const: An expression of one of the forms !e, e1 && e2 or e1 || e2, where e, e1 and e2
-   * are constant expressions that evaluate to a boolean value.
-   */
-  static const CompileTimeErrorCode CONST_EVAL_TYPE_BOOL = const CompileTimeErrorCode.con1('CONST_EVAL_TYPE_BOOL', 29, "An expression of type 'bool' was expected");
-
-  /**
-   * 12.11.2 Const: An expression of one of the forms e1 == e2 or e1 != e2 where e1 and e2 are
-   * constant expressions that evaluate to a numeric, string or boolean value or to null.
-   */
-  static const CompileTimeErrorCode CONST_EVAL_TYPE_BOOL_NUM_STRING = const CompileTimeErrorCode.con1('CONST_EVAL_TYPE_BOOL_NUM_STRING', 30, "An expression of type 'bool', 'num', 'String' or 'null' was expected");
-
-  /**
-   * 12.11.2 Const: An expression of one of the forms ~e, e1 ^ e2, e1 & e2, e1 | e2, e1 >> e2 or e1
-   * << e2, where e, e1 and e2 are constant expressions that evaluate to an integer value or to
-   * null.
-   */
-  static const CompileTimeErrorCode CONST_EVAL_TYPE_INT = const CompileTimeErrorCode.con1('CONST_EVAL_TYPE_INT', 31, "An expression of type 'int' was expected");
-
-  /**
-   * 12.11.2 Const: An expression of one of the forms e, e1 + e2, e1 - e2, e1 * e2, e1 / e2, e1 ~/
-   * e2, e1 > e2, e1 < e2, e1 >= e2, e1 <= e2 or e1 % e2, where e, e1 and e2 are constant
-   * expressions that evaluate to a numeric value or to null..
-   */
-  static const CompileTimeErrorCode CONST_EVAL_TYPE_NUM = const CompileTimeErrorCode.con1('CONST_EVAL_TYPE_NUM', 32, "An expression of type 'num' was expected");
-
-  /**
-   * 12.11.2 Const: It is a compile-time error if evaluation of a constant object results in an
-   * uncaught exception being thrown.
-   */
-  static const CompileTimeErrorCode CONST_EVAL_THROWS_EXCEPTION = const CompileTimeErrorCode.con1('CONST_EVAL_THROWS_EXCEPTION', 33, "Evaluation of this constant expression causes exception");
-
-  /**
-   * 12.11.2 Const: It is a compile-time error if evaluation of a constant object results in an
-   * uncaught exception being thrown.
-   */
-  static const CompileTimeErrorCode CONST_EVAL_THROWS_IDBZE = const CompileTimeErrorCode.con1('CONST_EVAL_THROWS_IDBZE', 34, "Evaluation of this constant expression throws IntegerDivisionByZeroException");
-
-  /**
-   * 12.11.2 Const: If <i>T</i> is a parameterized type <i>S&lt;U<sub>1</sub>, &hellip;,
-   * U<sub>m</sub>&gt;</i>, let <i>R = S</i>; It is a compile time error if <i>S</i> is not a
-   * generic type with <i>m</i> type parameters.
+  static const CompileTimeErrorCode CONST_NOT_INITIALIZED = const CompileTimeErrorCode('CONST_NOT_INITIALIZED', "The const variable '{0}' must be initialized");
+
+  /**
+   * 12.11.2 Const: An expression of one of the forms !e, e1 && e2 or e1 || e2,
+   * where e, e1 and e2 are constant expressions that evaluate to a boolean
+   * value.
+   */
+  static const CompileTimeErrorCode CONST_EVAL_TYPE_BOOL = const CompileTimeErrorCode('CONST_EVAL_TYPE_BOOL', "An expression of type 'bool' was expected");
+
+  /**
+   * 12.11.2 Const: An expression of one of the forms e1 == e2 or e1 != e2 where
+   * e1 and e2 are constant expressions that evaluate to a numeric, string or
+   * boolean value or to null.
+   */
+  static const CompileTimeErrorCode CONST_EVAL_TYPE_BOOL_NUM_STRING = const CompileTimeErrorCode('CONST_EVAL_TYPE_BOOL_NUM_STRING', "An expression of type 'bool', 'num', 'String' or 'null' was expected");
+
+  /**
+   * 12.11.2 Const: An expression of one of the forms ~e, e1 ^ e2, e1 & e2,
+   * e1 | e2, e1 >> e2 or e1 << e2, where e, e1 and e2 are constant expressions
+   * that evaluate to an integer value or to null.
+   */
+  static const CompileTimeErrorCode CONST_EVAL_TYPE_INT = const CompileTimeErrorCode('CONST_EVAL_TYPE_INT', "An expression of type 'int' was expected");
+
+  /**
+   * 12.11.2 Const: An expression of one of the forms e, e1 + e2, e1 - e2, e1 *
+   * e2, e1 / e2, e1 ~/ e2, e1 > e2, e1 < e2, e1 >= e2, e1 <= e2 or e1 % e2,
+   * where e, e1 and e2 are constant expressions that evaluate to a numeric
+   * value or to null.
+   */
+  static const CompileTimeErrorCode CONST_EVAL_TYPE_NUM = const CompileTimeErrorCode('CONST_EVAL_TYPE_NUM', "An expression of type 'num' was expected");
+
+  /**
+   * 12.11.2 Const: It is a compile-time error if evaluation of a constant
+   * object results in an uncaught exception being thrown.
+   */
+  static const CompileTimeErrorCode CONST_EVAL_THROWS_EXCEPTION = const CompileTimeErrorCode('CONST_EVAL_THROWS_EXCEPTION', "Evaluation of this constant expression causes exception");
+
+  /**
+   * 12.11.2 Const: It is a compile-time error if evaluation of a constant
+   * object results in an uncaught exception being thrown.
+   */
+  static const CompileTimeErrorCode CONST_EVAL_THROWS_IDBZE = const CompileTimeErrorCode('CONST_EVAL_THROWS_IDBZE', "Evaluation of this constant expression throws IntegerDivisionByZeroException");
+
+  /**
+   * 12.11.2 Const: If <i>T</i> is a parameterized type <i>S&lt;U<sub>1</sub>,
+   * &hellip;, U<sub>m</sub>&gt;</i>, let <i>R = S</i>; It is a compile time
+   * error if <i>S</i> is not a generic type with <i>m</i> type parameters.
    *
    * @param typeName the name of the type being referenced (<i>S</i>)
    * @param parameterCount the number of type parameters that were declared
    * @param argumentCount the number of type arguments provided
    * @see CompileTimeErrorCode#NEW_WITH_INVALID_TYPE_PARAMETERS
    * @see StaticTypeWarningCode#WRONG_NUMBER_OF_TYPE_ARGUMENTS
    */
-  static const CompileTimeErrorCode CONST_WITH_INVALID_TYPE_PARAMETERS = const CompileTimeErrorCode.con1('CONST_WITH_INVALID_TYPE_PARAMETERS', 35, "The type '{0}' is declared with {1} type parameters, but {2} type arguments were given");
-
-  /**
-   * 12.11.2 Const: If <i>e</i> is of the form <i>const T(a<sub>1</sub>, &hellip;, a<sub>n</sub>,
-   * x<sub>n+1</sub>: a<sub>n+1</sub>, &hellip;, x<sub>n+k</sub>: a<sub>n+k</sub>)</i> it is a
-   * compile-time error if the type <i>T</i> does not declare a constant constructor with the same
-   * name as the declaration of <i>T</i>.
-   */
-  static const CompileTimeErrorCode CONST_WITH_NON_CONST = const CompileTimeErrorCode.con1('CONST_WITH_NON_CONST', 36, "The constructor being called is not a 'const' constructor");
-
-  /**
-   * 12.11.2 Const: In all of the above cases, it is a compile-time error if <i>a<sub>i</sub>, 1
-   * &lt;= i &lt;= n + k</i>, is not a compile-time constant expression.
-   */
-  static const CompileTimeErrorCode CONST_WITH_NON_CONSTANT_ARGUMENT = const CompileTimeErrorCode.con1('CONST_WITH_NON_CONSTANT_ARGUMENT', 37, "Arguments of a constant creation must be constant expressions");
-
-  /**
-   * 12.11.2 Const: It is a compile-time error if <i>T</i> is not a class accessible in the current
-   * scope, optionally followed by type arguments.
-   *
-   * 12.11.2 Const: If <i>e</i> is of the form <i>const T.id(a<sub>1</sub>, &hellip;, a<sub>n</sub>,
-   * x<sub>n+1</sub>: a<sub>n+1</sub>, &hellip; x<sub>n+k</sub>: a<sub>n+k</sub>)</i> it is a
-   * compile-time error if <i>T</i> is not a class accessible in the current scope, optionally
+  static const CompileTimeErrorCode CONST_WITH_INVALID_TYPE_PARAMETERS = const CompileTimeErrorCode('CONST_WITH_INVALID_TYPE_PARAMETERS', "The type '{0}' is declared with {1} type parameters, but {2} type arguments were given");
+
+  /**
+   * 12.11.2 Const: If <i>e</i> is of the form <i>const T(a<sub>1</sub>,
+   * &hellip;, a<sub>n</sub>, x<sub>n+1</sub>: a<sub>n+1</sub>, &hellip;,
+   * x<sub>n+k</sub>: a<sub>n+k</sub>)</i> it is a compile-time error if the
+   * type <i>T</i> does not declare a constant constructor with the same name as
+   * the declaration of <i>T</i>.
+   */
+  static const CompileTimeErrorCode CONST_WITH_NON_CONST = const CompileTimeErrorCode('CONST_WITH_NON_CONST', "The constructor being called is not a 'const' constructor");
+
+  /**
+   * 12.11.2 Const: In all of the above cases, it is a compile-time error if
+   * <i>a<sub>i</sub>, 1 &lt;= i &lt;= n + k</i>, is not a compile-time constant
+   * expression.
+   */
+  static const CompileTimeErrorCode CONST_WITH_NON_CONSTANT_ARGUMENT = const CompileTimeErrorCode('CONST_WITH_NON_CONSTANT_ARGUMENT', "Arguments of a constant creation must be constant expressions");
+
+  /**
+   * 12.11.2 Const: It is a compile-time error if <i>T</i> is not a class
+   * accessible in the current scope, optionally followed by type arguments.
+   *
+   * 12.11.2 Const: If <i>e</i> is of the form <i>const T.id(a<sub>1</sub>,
+   * &hellip;, a<sub>n</sub>, x<sub>n+1</sub>: a<sub>n+1</sub>, &hellip;
+   * x<sub>n+k</sub>: a<sub>n+k</sub>)</i> it is a compile-time error if
+   * <i>T</i> is not a class accessible in the current scope, optionally
    * followed by type arguments.
    *
    * @param name the name of the non-type element
    */
-  static const CompileTimeErrorCode CONST_WITH_NON_TYPE = const CompileTimeErrorCode.con1('CONST_WITH_NON_TYPE', 38, "The name '{0}' is not a class");
-
-  /**
-   * 12.11.2 Const: It is a compile-time error if <i>T</i> includes any type parameters.
-   */
-  static const CompileTimeErrorCode CONST_WITH_TYPE_PARAMETERS = const CompileTimeErrorCode.con1('CONST_WITH_TYPE_PARAMETERS', 39, "The constant creation cannot use a type parameter");
-
-  /**
-   * 12.11.2 Const: It is a compile-time error if <i>T.id</i> is not the name of a constant
-   * constructor declared by the type <i>T</i>.
+  static const CompileTimeErrorCode CONST_WITH_NON_TYPE = const CompileTimeErrorCode('CONST_WITH_NON_TYPE', "The name '{0}' is not a class");
+
+  /**
+   * 12.11.2 Const: It is a compile-time error if <i>T</i> includes any type
+   * parameters.
+   */
+  static const CompileTimeErrorCode CONST_WITH_TYPE_PARAMETERS = const CompileTimeErrorCode('CONST_WITH_TYPE_PARAMETERS', "The constant creation cannot use a type parameter");
+
+  /**
+   * 12.11.2 Const: It is a compile-time error if <i>T.id</i> is not the name of
+   * a constant constructor declared by the type <i>T</i>.
    *
    * @param typeName the name of the type
    * @param constructorName the name of the requested constant constructor
    */
-  static const CompileTimeErrorCode CONST_WITH_UNDEFINED_CONSTRUCTOR = const CompileTimeErrorCode.con1('CONST_WITH_UNDEFINED_CONSTRUCTOR', 40, "The class '{0}' does not have a constant constructor '{1}'");
-
-  /**
-   * 12.11.2 Const: It is a compile-time error if <i>T.id</i> is not the name of a constant
-   * constructor declared by the type <i>T</i>.
+  static const CompileTimeErrorCode CONST_WITH_UNDEFINED_CONSTRUCTOR = const CompileTimeErrorCode('CONST_WITH_UNDEFINED_CONSTRUCTOR', "The class '{0}' does not have a constant constructor '{1}'");
+
+  /**
+   * 12.11.2 Const: It is a compile-time error if <i>T.id</i> is not the name of
+   * a constant constructor declared by the type <i>T</i>.
    *
    * @param typeName the name of the type
    */
-  static const CompileTimeErrorCode CONST_WITH_UNDEFINED_CONSTRUCTOR_DEFAULT = const CompileTimeErrorCode.con1('CONST_WITH_UNDEFINED_CONSTRUCTOR_DEFAULT', 41, "The class '{0}' does not have a default constant constructor");
-
-  /**
-   * 15.3.1 Typedef: It is a compile-time error if any default values are specified in the signature
-   * of a function type alias.
-   */
-  static const CompileTimeErrorCode DEFAULT_VALUE_IN_FUNCTION_TYPE_ALIAS = const CompileTimeErrorCode.con1('DEFAULT_VALUE_IN_FUNCTION_TYPE_ALIAS', 42, "Default values aren't allowed in typedefs");
-
-  /**
-   * 6.2.1 Required Formals: By means of a function signature that names the parameter and describes
-   * its type as a function type. It is a compile-time error if any default values are specified in
-   * the signature of such a function type.
-   */
-  static const CompileTimeErrorCode DEFAULT_VALUE_IN_FUNCTION_TYPED_PARAMETER = const CompileTimeErrorCode.con1('DEFAULT_VALUE_IN_FUNCTION_TYPED_PARAMETER', 43, "Default values aren't allowed in function type parameters");
-
-  /**
-   * 7.6.2 Factories: It is a compile-time error if <i>k</i> explicitly specifies a default value
-   * for an optional parameter.
-   */
-  static const CompileTimeErrorCode DEFAULT_VALUE_IN_REDIRECTING_FACTORY_CONSTRUCTOR = const CompileTimeErrorCode.con1('DEFAULT_VALUE_IN_REDIRECTING_FACTORY_CONSTRUCTOR', 44, "Default values aren't allowed in factory constructors that redirect to another constructor");
-
-  /**
-   * 3.1 Scoping: It is a compile-time error if there is more than one entity with the same name
-   * declared in the same scope.
-   */
-  static const CompileTimeErrorCode DUPLICATE_CONSTRUCTOR_DEFAULT = const CompileTimeErrorCode.con1('DUPLICATE_CONSTRUCTOR_DEFAULT', 45, "The default constructor is already defined");
-
-  /**
-   * 3.1 Scoping: It is a compile-time error if there is more than one entity with the same name
-   * declared in the same scope.
+  static const CompileTimeErrorCode CONST_WITH_UNDEFINED_CONSTRUCTOR_DEFAULT = const CompileTimeErrorCode('CONST_WITH_UNDEFINED_CONSTRUCTOR_DEFAULT', "The class '{0}' does not have a default constant constructor");
+
+  /**
+   * 15.3.1 Typedef: It is a compile-time error if any default values are
+   * specified in the signature of a function type alias.
+   */
+  static const CompileTimeErrorCode DEFAULT_VALUE_IN_FUNCTION_TYPE_ALIAS = const CompileTimeErrorCode('DEFAULT_VALUE_IN_FUNCTION_TYPE_ALIAS', "Default values aren't allowed in typedefs");
+
+  /**
+   * 6.2.1 Required Formals: By means of a function signature that names the
+   * parameter and describes its type as a function type. It is a compile-time
+   * error if any default values are specified in the signature of such a
+   * function type.
+   */
+  static const CompileTimeErrorCode DEFAULT_VALUE_IN_FUNCTION_TYPED_PARAMETER = const CompileTimeErrorCode('DEFAULT_VALUE_IN_FUNCTION_TYPED_PARAMETER', "Default values aren't allowed in function type parameters");
+
+  /**
+   * 7.6.2 Factories: It is a compile-time error if <i>k</i> explicitly
+   * specifies a default value for an optional parameter.
+   */
+  static const CompileTimeErrorCode DEFAULT_VALUE_IN_REDIRECTING_FACTORY_CONSTRUCTOR = const CompileTimeErrorCode('DEFAULT_VALUE_IN_REDIRECTING_FACTORY_CONSTRUCTOR', "Default values aren't allowed in factory constructors that redirect to another constructor");
+
+  /**
+   * 3.1 Scoping: It is a compile-time error if there is more than one entity
+   * with the same name declared in the same scope.
+   */
+  static const CompileTimeErrorCode DUPLICATE_CONSTRUCTOR_DEFAULT = const CompileTimeErrorCode('DUPLICATE_CONSTRUCTOR_DEFAULT', "The default constructor is already defined");
+
+  /**
+   * 3.1 Scoping: It is a compile-time error if there is more than one entity
+   * with the same name declared in the same scope.
    *
    * @param duplicateName the name of the duplicate entity
    */
-  static const CompileTimeErrorCode DUPLICATE_CONSTRUCTOR_NAME = const CompileTimeErrorCode.con1('DUPLICATE_CONSTRUCTOR_NAME', 46, "The constructor with name '{0}' is already defined");
-
-  /**
-   * 3.1 Scoping: It is a compile-time error if there is more than one entity with the same name
-   * declared in the same scope.
-   *
-   * 7 Classes: It is a compile-time error if a class declares two members of the same name.
-   *
-   * 7 Classes: It is a compile-time error if a class has an instance member and a static member
-   * with the same name.
+  static const CompileTimeErrorCode DUPLICATE_CONSTRUCTOR_NAME = const CompileTimeErrorCode('DUPLICATE_CONSTRUCTOR_NAME', "The constructor with name '{0}' is already defined");
+
+  /**
+   * 3.1 Scoping: It is a compile-time error if there is more than one entity
+   * with the same name declared in the same scope.
+   *
+   * 7 Classes: It is a compile-time error if a class declares two members of
+   * the same name.
+   *
+   * 7 Classes: It is a compile-time error if a class has an instance member and
+   * a static member with the same name.
    *
    * @param duplicateName the name of the duplicate entity
    */
-  static const CompileTimeErrorCode DUPLICATE_DEFINITION = const CompileTimeErrorCode.con1('DUPLICATE_DEFINITION', 47, "The name '{0}' is already defined");
-
-  /**
-   * 7. Classes: It is a compile-time error if a class has an instance member and a static member
-   * with the same name.
-   *
-   * This covers the additional duplicate definition cases where inheritance has to be considered.
-   *
-   * @param className the name of the class that has conflicting instance/static members
+  static const CompileTimeErrorCode DUPLICATE_DEFINITION = const CompileTimeErrorCode('DUPLICATE_DEFINITION', "The name '{0}' is already defined");
+
+  /**
+   * 7. Classes: It is a compile-time error if a class has an instance member
+   * and a static member with the same name.
+   *
+   * This covers the additional duplicate definition cases where inheritance has
+   * to be considered.
+   *
+   * @param className the name of the class that has conflicting instance/static
+   *        members
    * @param name the name of the conflicting members
-   * @see #DUPLICATE_DEFINITION
-   */
-  static const CompileTimeErrorCode DUPLICATE_DEFINITION_INHERITANCE = const CompileTimeErrorCode.con1('DUPLICATE_DEFINITION_INHERITANCE', 48, "The name '{0}' is already defined in '{1}'");
-
-  /**
-   * 12.14.2 Binding Actuals to Formals: It is a compile-time error if <i>q<sub>i</sub> =
-   * q<sub>j</sub></i> for any <i>i != j</i> [where <i>q<sub>i</sub></i> is the label for a named
-   * argument].
-   */
-  static const CompileTimeErrorCode DUPLICATE_NAMED_ARGUMENT = const CompileTimeErrorCode.con1('DUPLICATE_NAMED_ARGUMENT', 49, "The argument for the named parameter '{0}' was already specified");
+   * @see [DUPLICATE_DEFINITION]
+   */
+  static const CompileTimeErrorCode DUPLICATE_DEFINITION_INHERITANCE = const CompileTimeErrorCode('DUPLICATE_DEFINITION_INHERITANCE', "The name '{0}' is already defined in '{1}'");
+
+  /**
+   * 12.14.2 Binding Actuals to Formals: It is a compile-time error if
+   * <i>q<sub>i</sub> = q<sub>j</sub></i> for any <i>i != j</i> [where
+   * <i>q<sub>i</sub></i> is the label for a named argument].
+   */
+  static const CompileTimeErrorCode DUPLICATE_NAMED_ARGUMENT = const CompileTimeErrorCode('DUPLICATE_NAMED_ARGUMENT', "The argument for the named parameter '{0}' was already specified");
 
   /**
    * SDK implementation libraries can be exported only by other SDK libraries.
    *
    * @param uri the uri pointing to a library
    */
-  static const CompileTimeErrorCode EXPORT_INTERNAL_LIBRARY = const CompileTimeErrorCode.con1('EXPORT_INTERNAL_LIBRARY', 50, "The library '{0}' is internal and cannot be exported");
-
-  /**
-   * 14.2 Exports: It is a compile-time error if the compilation unit found at the specified URI is
-   * not a library declaration.
+  static const CompileTimeErrorCode EXPORT_INTERNAL_LIBRARY = const CompileTimeErrorCode('EXPORT_INTERNAL_LIBRARY', "The library '{0}' is internal and cannot be exported");
+
+  /**
+   * 14.2 Exports: It is a compile-time error if the compilation unit found at
+   * the specified URI is not a library declaration.
    *
    * @param uri the uri pointing to a non-library declaration
    */
-  static const CompileTimeErrorCode EXPORT_OF_NON_LIBRARY = const CompileTimeErrorCode.con1('EXPORT_OF_NON_LIBRARY', 51, "The exported library '{0}' must not have a part-of directive");
-
-  /**
-   * Enum proposal: It is a compile-time error to subclass, mix-in or implement an enum.
-   */
-  static const CompileTimeErrorCode EXTENDS_ENUM = const CompileTimeErrorCode.con1('EXTENDS_ENUM', 52, "Classes cannot extend an enum");
-
-  /**
-   * 7.9 Superclasses: It is a compile-time error if the extends clause of a class <i>C</i> includes
-   * a type expression that does not denote a class available in the lexical scope of <i>C</i>.
+  static const CompileTimeErrorCode EXPORT_OF_NON_LIBRARY = const CompileTimeErrorCode('EXPORT_OF_NON_LIBRARY', "The exported library '{0}' must not have a part-of directive");
+
+  /**
+   * Enum proposal: It is a compile-time error to subclass, mix-in or implement
+   * an enum.
+   */
+  static const CompileTimeErrorCode EXTENDS_ENUM = const CompileTimeErrorCode('EXTENDS_ENUM', "Classes cannot extend an enum");
+
+  /**
+   * 7.9 Superclasses: It is a compile-time error if the extends clause of a
+   * class <i>C</i> includes a type expression that does not denote a class
+   * available in the lexical scope of <i>C</i>.
    *
    * @param typeName the name of the superclass that was not found
    */
-  static const CompileTimeErrorCode EXTENDS_NON_CLASS = const CompileTimeErrorCode.con1('EXTENDS_NON_CLASS', 53, "Classes can only extend other classes");
-
-  /**
-   * 12.2 Null: It is a compile-time error for a class to attempt to extend or implement Null.
-   *
-   * 12.3 Numbers: It is a compile-time error for a class to attempt to extend or implement int.
-   *
-   * 12.3 Numbers: It is a compile-time error for a class to attempt to extend or implement double.
-   *
-   * 12.3 Numbers: It is a compile-time error for any type other than the types int and double to
+  static const CompileTimeErrorCode EXTENDS_NON_CLASS = const CompileTimeErrorCode('EXTENDS_NON_CLASS', "Classes can only extend other classes");
+
+  /**
+   * 12.2 Null: It is a compile-time error for a class to attempt to extend or
+   * implement Null.
+   *
+   * 12.3 Numbers: It is a compile-time error for a class to attempt to extend
+   * or implement int.
+   *
+   * 12.3 Numbers: It is a compile-time error for a class to attempt to extend
+   * or implement double.
+   *
+   * 12.3 Numbers: It is a compile-time error for any type other than the types
+   * int and double to
    * attempt to extend or implement num.
    *
-   * 12.4 Booleans: It is a compile-time error for a class to attempt to extend or implement bool.
-   *
-   * 12.5 Strings: It is a compile-time error for a class to attempt to extend or implement String.
+   * 12.4 Booleans: It is a compile-time error for a class to attempt to extend
+   * or implement bool.
+   *
+   * 12.5 Strings: It is a compile-time error for a class to attempt to extend
+   * or implement String.
    *
    * @param typeName the name of the type that cannot be extended
-   * @see #IMPLEMENTS_DISALLOWED_CLASS
-   */
-  static const CompileTimeErrorCode EXTENDS_DISALLOWED_CLASS = const CompileTimeErrorCode.con1('EXTENDS_DISALLOWED_CLASS', 54, "Classes cannot extend '{0}'");
-
-  /**
-   * 7.9 Superclasses: It is a compile-time error if the extends clause of a class <i>C</i> includes
-   * a deferred type expression.
+   * @see [IMPLEMENTS_DISALLOWED_CLASS]
+   */
+  static const CompileTimeErrorCode EXTENDS_DISALLOWED_CLASS = const CompileTimeErrorCode('EXTENDS_DISALLOWED_CLASS', "Classes cannot extend '{0}'");
+
+  /**
+   * 7.9 Superclasses: It is a compile-time error if the extends clause of a
+   * class <i>C</i> includes a deferred type expression.
    *
    * @param typeName the name of the type that cannot be extended
-   * @see #IMPLEMENTS_DEFERRED_CLASS
-   * @see #MIXIN_DEFERRED_CLASS
-   */
-  static const CompileTimeErrorCode EXTENDS_DEFERRED_CLASS = const CompileTimeErrorCode.con1('EXTENDS_DEFERRED_CLASS', 55, "This class cannot extend the deferred class '{0}'");
-
-  /**
-   * 12.14.2 Binding Actuals to Formals: It is a static warning if <i>m &lt; h</i> or if <i>m &gt;
-   * n</i>.
-   *
-   * 12.11.2 Const: It is a compile-time error if evaluation of a constant object results in an
-   * uncaught exception being thrown.
+   * @see [IMPLEMENTS_DEFERRED_CLASS]
+   * @see [MIXIN_DEFERRED_CLASS]
+   */
+  static const CompileTimeErrorCode EXTENDS_DEFERRED_CLASS = const CompileTimeErrorCode('EXTENDS_DEFERRED_CLASS', "This class cannot extend the deferred class '{0}'");
+
+  /**
+   * 12.14.2 Binding Actuals to Formals: It is a static warning if <i>m &lt;
+   * h</i> or if <i>m &gt; n</i>.
+   *
+   * 12.11.2 Const: It is a compile-time error if evaluation of a constant
+   * object results in an uncaught exception being thrown.
    *
    * @param requiredCount the maximum number of positional arguments
    * @param argumentCount the actual number of positional arguments given
    */
-  static const CompileTimeErrorCode EXTRA_POSITIONAL_ARGUMENTS = const CompileTimeErrorCode.con1('EXTRA_POSITIONAL_ARGUMENTS', 56, "{0} positional arguments expected, but {1} found");
-
-  /**
-   * 7.6.1 Generative Constructors: Let <i>k</i> be a generative constructor. It is a compile time
-   * error if more than one initializer corresponding to a given instance variable appears in
-   * <i>k</i>'s list.
-   */
-  static const CompileTimeErrorCode FIELD_INITIALIZED_BY_MULTIPLE_INITIALIZERS = const CompileTimeErrorCode.con1('FIELD_INITIALIZED_BY_MULTIPLE_INITIALIZERS', 57, "The field '{0}' cannot be initialized twice in the same constructor");
-
-  /**
-   * 7.6.1 Generative Constructors: Let <i>k</i> be a generative constructor. It is a compile time
-   * error if <i>k</i>'s initializer list contains an initializer for a variable that is initialized
-   * by means of an initializing formal of <i>k</i>.
-   */
-  static const CompileTimeErrorCode FIELD_INITIALIZED_IN_PARAMETER_AND_INITIALIZER = const CompileTimeErrorCode.con1('FIELD_INITIALIZED_IN_PARAMETER_AND_INITIALIZER', 58, "Fields cannot be initialized in both the parameter list and the initializers");
-
-  /**
-   * 5 Variables: It is a compile-time error if a final instance variable that has is initialized by
-   * means of an initializing formal of a constructor is also initialized elsewhere in the same
-   * constructor.
+  static const CompileTimeErrorCode EXTRA_POSITIONAL_ARGUMENTS = const CompileTimeErrorCode('EXTRA_POSITIONAL_ARGUMENTS', "{0} positional arguments expected, but {1} found");
+
+  /**
+   * 7.6.1 Generative Constructors: Let <i>k</i> be a generative constructor. It
+   * is a compile time error if more than one initializer corresponding to a
+   * given instance variable appears in <i>k</i>'s list.
+   */
+  static const CompileTimeErrorCode FIELD_INITIALIZED_BY_MULTIPLE_INITIALIZERS = const CompileTimeErrorCode('FIELD_INITIALIZED_BY_MULTIPLE_INITIALIZERS', "The field '{0}' cannot be initialized twice in the same constructor");
+
+  /**
+   * 7.6.1 Generative Constructors: Let <i>k</i> be a generative constructor. It
+   * is a compile time error if <i>k</i>'s initializer list contains an
+   * initializer for a variable that is initialized by means of an initializing
+   * formal of <i>k</i>.
+   */
+  static const CompileTimeErrorCode FIELD_INITIALIZED_IN_PARAMETER_AND_INITIALIZER = const CompileTimeErrorCode('FIELD_INITIALIZED_IN_PARAMETER_AND_INITIALIZER', "Fields cannot be initialized in both the parameter list and the initializers");
+
+  /**
+   * 5 Variables: It is a compile-time error if a final instance variable that
+   * has is initialized by means of an initializing formal of a constructor is
+   * also initialized elsewhere in the same constructor.
    *
    * @param name the name of the field in question
    */
-  static const CompileTimeErrorCode FINAL_INITIALIZED_MULTIPLE_TIMES = const CompileTimeErrorCode.con1('FINAL_INITIALIZED_MULTIPLE_TIMES', 59, "'{0}' is a final field and so can only be set once");
-
-  /**
-   * 7.6.1 Generative Constructors: It is a compile-time error if an initializing formal is used by
-   * a function other than a non-redirecting generative constructor.
-   */
-  static const CompileTimeErrorCode FIELD_INITIALIZER_FACTORY_CONSTRUCTOR = const CompileTimeErrorCode.con1('FIELD_INITIALIZER_FACTORY_CONSTRUCTOR', 60, "Initializing formal fields cannot be used in factory constructors");
-
-  /**
-   * 7.6.1 Generative Constructors: It is a compile-time error if an initializing formal is used by
-   * a function other than a non-redirecting generative constructor.
-   */
-  static const CompileTimeErrorCode FIELD_INITIALIZER_OUTSIDE_CONSTRUCTOR = const CompileTimeErrorCode.con1('FIELD_INITIALIZER_OUTSIDE_CONSTRUCTOR', 61, "Initializing formal fields can only be used in constructors");
-
-  /**
-   * 7.6.1 Generative Constructors: A generative constructor may be redirecting, in which case its
-   * only action is to invoke another generative constructor.
-   *
-   * 7.6.1 Generative Constructors: It is a compile-time error if an initializing formal is used by
-   * a function other than a non-redirecting generative constructor.
-   */
-  static const CompileTimeErrorCode FIELD_INITIALIZER_REDIRECTING_CONSTRUCTOR = const CompileTimeErrorCode.con1('FIELD_INITIALIZER_REDIRECTING_CONSTRUCTOR', 62, "The redirecting constructor cannot have a field initializer");
-
-  /**
-   * 7.2 Getters: It is a compile-time error if a class has both a getter and a method with the same
-   * name.
+  static const CompileTimeErrorCode FINAL_INITIALIZED_MULTIPLE_TIMES = const CompileTimeErrorCode('FINAL_INITIALIZED_MULTIPLE_TIMES', "'{0}' is a final field and so can only be set once");
+
+  /**
+   * 7.6.1 Generative Constructors: It is a compile-time error if an
+   * initializing formal is used by a function other than a non-redirecting
+   * generative constructor.
+   */
+  static const CompileTimeErrorCode FIELD_INITIALIZER_FACTORY_CONSTRUCTOR = const CompileTimeErrorCode('FIELD_INITIALIZER_FACTORY_CONSTRUCTOR', "Initializing formal fields cannot be used in factory constructors");
+
+  /**
+   * 7.6.1 Generative Constructors: It is a compile-time error if an
+   * initializing formal is used by a function other than a non-redirecting
+   * generative constructor.
+   */
+  static const CompileTimeErrorCode FIELD_INITIALIZER_OUTSIDE_CONSTRUCTOR = const CompileTimeErrorCode('FIELD_INITIALIZER_OUTSIDE_CONSTRUCTOR', "Initializing formal fields can only be used in constructors");
+
+  /**
+   * 7.6.1 Generative Constructors: A generative constructor may be redirecting,
+   * in which case its only action is to invoke another generative constructor.
+   *
+   * 7.6.1 Generative Constructors: It is a compile-time error if an
+   * initializing formal is used by a function other than a non-redirecting
+   * generative constructor.
+   */
+  static const CompileTimeErrorCode FIELD_INITIALIZER_REDIRECTING_CONSTRUCTOR = const CompileTimeErrorCode('FIELD_INITIALIZER_REDIRECTING_CONSTRUCTOR', "The redirecting constructor cannot have a field initializer");
+
+  /**
+   * 7.2 Getters: It is a compile-time error if a class has both a getter and a
+   * method with the same name.
    *
    * @param name the conflicting name of the getter and method
    */
-  static const CompileTimeErrorCode GETTER_AND_METHOD_WITH_SAME_NAME = const CompileTimeErrorCode.con1('GETTER_AND_METHOD_WITH_SAME_NAME', 63, "'{0}' cannot be used to name a getter, there is already a method with the same name");
-
-  /**
-   * 7.10 Superinterfaces: It is a compile-time error if the implements clause of a class <i>C</i>
-   * specifies a malformed type or deferred type as a superinterface.
+  static const CompileTimeErrorCode GETTER_AND_METHOD_WITH_SAME_NAME = const CompileTimeErrorCode('GETTER_AND_METHOD_WITH_SAME_NAME', "'{0}' cannot be used to name a getter, there is already a method with the same name");
+
+  /**
+   * 7.10 Superinterfaces: It is a compile-time error if the implements clause
+   * of a class <i>C</i> specifies a malformed type or deferred type as a
+   * superinterface.
    *
    * @param typeName the name of the type that cannot be extended
-   * @see #EXTENDS_DEFERRED_CLASS
-   * @see #MIXIN_DEFERRED_CLASS
-   */
-  static const CompileTimeErrorCode IMPLEMENTS_DEFERRED_CLASS = const CompileTimeErrorCode.con1('IMPLEMENTS_DEFERRED_CLASS', 64, "This class cannot implement the deferred class '{0}'");
-
-  /**
-   * 12.2 Null: It is a compile-time error for a class to attempt to extend or implement Null.
-   *
-   * 12.3 Numbers: It is a compile-time error for a class to attempt to extend or implement int.
-   *
-   * 12.3 Numbers: It is a compile-time error for a class to attempt to extend or implement double.
-   *
-   * 12.3 Numbers: It is a compile-time error for any type other than the types int and double to
+   * @see [EXTENDS_DEFERRED_CLASS]
+   * @see [MIXIN_DEFERRED_CLASS]
+   */
+  static const CompileTimeErrorCode IMPLEMENTS_DEFERRED_CLASS = const CompileTimeErrorCode('IMPLEMENTS_DEFERRED_CLASS', "This class cannot implement the deferred class '{0}'");
+
+  /**
+   * 12.2 Null: It is a compile-time error for a class to attempt to extend or
+   * implement Null.
+   *
+   * 12.3 Numbers: It is a compile-time error for a class to attempt to extend
+   * or implement int.
+   *
+   * 12.3 Numbers: It is a compile-time error for a class to attempt to extend
+   * or implement double.
+   *
+   * 12.3 Numbers: It is a compile-time error for any type other than the types
+   * int and double to
    * attempt to extend or implement num.
    *
-   * 12.4 Booleans: It is a compile-time error for a class to attempt to extend or implement bool.
-   *
-   * 12.5 Strings: It is a compile-time error for a class to attempt to extend or implement String.
+   * 12.4 Booleans: It is a compile-time error for a class to attempt to extend
+   * or implement bool.
+   *
+   * 12.5 Strings: It is a compile-time error for a class to attempt to extend
+   * or implement String.
    *
    * @param typeName the name of the type that cannot be implemented
-   * @see #EXTENDS_DISALLOWED_CLASS
-   */
-  static const CompileTimeErrorCode IMPLEMENTS_DISALLOWED_CLASS = const CompileTimeErrorCode.con1('IMPLEMENTS_DISALLOWED_CLASS', 65, "Classes cannot implement '{0}'");
-
-  /**
-   * 7.10 Superinterfaces: It is a compile-time error if the implements clause of a class includes
-   * type dynamic.
-   */
-  static const CompileTimeErrorCode IMPLEMENTS_DYNAMIC = const CompileTimeErrorCode.con1('IMPLEMENTS_DYNAMIC', 66, "Classes cannot implement 'dynamic'");
-
-  /**
-   * Enum proposal: It is a compile-time error to subclass, mix-in or implement an enum.
-   */
-  static const CompileTimeErrorCode IMPLEMENTS_ENUM = const CompileTimeErrorCode.con1('IMPLEMENTS_ENUM', 67, "Classes cannot implement an enum");
-
-  /**
-   * 7.10 Superinterfaces: It is a compile-time error if the implements clause of a class <i>C</i>
-   * includes a type expression that does not denote a class available in the lexical scope of
-   * <i>C</i>.
+   * @see [EXTENDS_DISALLOWED_CLASS]
+   */
+  static const CompileTimeErrorCode IMPLEMENTS_DISALLOWED_CLASS = const CompileTimeErrorCode('IMPLEMENTS_DISALLOWED_CLASS', "Classes cannot implement '{0}'");
+
+  /**
+   * 7.10 Superinterfaces: It is a compile-time error if the implements clause
+   * of a class includes type dynamic.
+   */
+  static const CompileTimeErrorCode IMPLEMENTS_DYNAMIC = const CompileTimeErrorCode('IMPLEMENTS_DYNAMIC', "Classes cannot implement 'dynamic'");
+
+  /**
+   * Enum proposal: It is a compile-time error to subclass, mix-in or implement
+   * an enum.
+   */
+  static const CompileTimeErrorCode IMPLEMENTS_ENUM = const CompileTimeErrorCode('IMPLEMENTS_ENUM', "Classes cannot implement an enum");
+
+  /**
+   * 7.10 Superinterfaces: It is a compile-time error if the implements clause
+   * of a class <i>C</i> includes a type expression that does not denote a class
+   * available in the lexical scope of <i>C</i>.
    *
    * @param typeName the name of the interface that was not found
    */
-  static const CompileTimeErrorCode IMPLEMENTS_NON_CLASS = const CompileTimeErrorCode.con1('IMPLEMENTS_NON_CLASS', 68, "Classes can only implement other classes");
-
-  /**
-   * 7.10 Superinterfaces: It is a compile-time error if a type <i>T</i> appears more than once in
-   * the implements clause of a class.
+  static const CompileTimeErrorCode IMPLEMENTS_NON_CLASS = const CompileTimeErrorCode('IMPLEMENTS_NON_CLASS', "Classes can only implement other classes");
+
+  /**
+   * 7.10 Superinterfaces: It is a compile-time error if a type <i>T</i> appears
+   * more than once in the implements clause of a class.
    *
    * @param className the name of the class that is implemented more than once
    */
-  static const CompileTimeErrorCode IMPLEMENTS_REPEATED = const CompileTimeErrorCode.con1('IMPLEMENTS_REPEATED', 69, "'{0}' can only be implemented once");
-
-  /**
-   * 7.10 Superinterfaces: It is a compile-time error if the superclass of a class <i>C</i> appears
-   * in the implements clause of <i>C</i>.
-   *
-   * @param className the name of the class that appears in both "extends" and "implements" clauses
-   */
-  static const CompileTimeErrorCode IMPLEMENTS_SUPER_CLASS = const CompileTimeErrorCode.con1('IMPLEMENTS_SUPER_CLASS', 70, "'{0}' cannot be used in both 'extends' and 'implements' clauses");
-
-  /**
-   * 7.6.1 Generative Constructors: Note that <b>this</b> is not in scope on the right hand side of
-   * an initializer.
-   *
-   * 12.10 This: It is a compile-time error if this appears in a top-level function or variable
-   * initializer, in a factory constructor, or in a static method or variable initializer, or in the
-   * initializer of an instance variable.
+  static const CompileTimeErrorCode IMPLEMENTS_REPEATED = const CompileTimeErrorCode('IMPLEMENTS_REPEATED', "'{0}' can only be implemented once");
+
+  /**
+   * 7.10 Superinterfaces: It is a compile-time error if the superclass of a
+   * class <i>C</i> appears in the implements clause of <i>C</i>.
+   *
+   * @param className the name of the class that appears in both "extends" and
+   *        "implements" clauses
+   */
+  static const CompileTimeErrorCode IMPLEMENTS_SUPER_CLASS = const CompileTimeErrorCode('IMPLEMENTS_SUPER_CLASS', "'{0}' cannot be used in both 'extends' and 'implements' clauses");
+
+  /**
+   * 7.6.1 Generative Constructors: Note that <b>this</b> is not in scope on the
+   * right hand side of an initializer.
+   *
+   * 12.10 This: It is a compile-time error if this appears in a top-level
+   * function or variable initializer, in a factory constructor, or in a static
+   * method or variable initializer, or in the initializer of an instance
+   * variable.
    *
    * @param name the name of the type in question
    */
-  static const CompileTimeErrorCode IMPLICIT_THIS_REFERENCE_IN_INITIALIZER = const CompileTimeErrorCode.con1('IMPLICIT_THIS_REFERENCE_IN_INITIALIZER', 71, "Only static members can be accessed in initializers");
+  static const CompileTimeErrorCode IMPLICIT_THIS_REFERENCE_IN_INITIALIZER = const CompileTimeErrorCode('IMPLICIT_THIS_REFERENCE_IN_INITIALIZER', "Only static members can be accessed in initializers");
 
   /**
    * SDK implementation libraries can be imported only by other SDK libraries.
    *
    * @param uri the uri pointing to a library
    */
-  static const CompileTimeErrorCode IMPORT_INTERNAL_LIBRARY = const CompileTimeErrorCode.con1('IMPORT_INTERNAL_LIBRARY', 72, "The library '{0}' is internal and cannot be imported");
-
-  /**
-   * 14.1 Imports: It is a compile-time error if the specified URI of an immediate import does not
-   * refer to a library declaration.
+  static const CompileTimeErrorCode IMPORT_INTERNAL_LIBRARY = const CompileTimeErrorCode('IMPORT_INTERNAL_LIBRARY', "The library '{0}' is internal and cannot be imported");
+
+  /**
+   * 14.1 Imports: It is a compile-time error if the specified URI of an
+   * immediate import does not refer to a library declaration.
    *
    * @param uri the uri pointing to a non-library declaration
-   * @see StaticWarningCode#IMPORT_OF_NON_LIBRARY
-   */
-  static const CompileTimeErrorCode IMPORT_OF_NON_LIBRARY = const CompileTimeErrorCode.con1('IMPORT_OF_NON_LIBRARY', 73, "The imported library '{0}' must not have a part-of directive");
-
-  /**
-   * 13.9 Switch: It is a compile-time error if values of the expressions <i>e<sub>k</sub></i> are
-   * not instances of the same class <i>C</i>, for all <i>1 &lt;= k &lt;= n</i>.
-   *
-   * @param expressionSource the expression source code that is the unexpected type
+   * @see [StaticWarningCode.IMPORT_OF_NON_LIBRARY]
+   */
+  static const CompileTimeErrorCode IMPORT_OF_NON_LIBRARY = const CompileTimeErrorCode('IMPORT_OF_NON_LIBRARY', "The imported library '{0}' must not have a part-of directive");
+
+  /**
+   * 13.9 Switch: It is a compile-time error if values of the expressions
+   * <i>e<sub>k</sub></i> are not instances of the same class <i>C</i>, for all
+   * <i>1 &lt;= k &lt;= n</i>.
+   *
+   * @param expressionSource the expression source code that is the unexpected
+   *        type
    * @param expectedType the name of the expected type
    */
-  static const CompileTimeErrorCode INCONSISTENT_CASE_EXPRESSION_TYPES = const CompileTimeErrorCode.con1('INCONSISTENT_CASE_EXPRESSION_TYPES', 74, "Case expressions must have the same types, '{0}' is not a '{1}'");
-
-  /**
-   * 7.6.1 Generative Constructors: Let <i>k</i> be a generative constructor. It is a compile-time
-   * error if <i>k</i>'s initializer list contains an initializer for a variable that is not an
-   * instance variable declared in the immediately surrounding class.
-   *
-   * @param id the name of the initializing formal that is not an instance variable in the
-   *          immediately enclosing class
-   * @see #INITIALIZING_FORMAL_FOR_NON_EXISTENT_FIELD
-   */
-  static const CompileTimeErrorCode INITIALIZER_FOR_NON_EXISTENT_FIELD = const CompileTimeErrorCode.con1('INITIALIZER_FOR_NON_EXISTENT_FIELD', 75, "'{0}' is not a variable in the enclosing class");
-
-  /**
-   * 7.6.1 Generative Constructors: Let <i>k</i> be a generative constructor. It is a compile-time
-   * error if <i>k</i>'s initializer list contains an initializer for a variable that is not an
-   * instance variable declared in the immediately surrounding class.
-   *
-   * @param id the name of the initializing formal that is a static variable in the immediately
-   *          enclosing class
+  static const CompileTimeErrorCode INCONSISTENT_CASE_EXPRESSION_TYPES = const CompileTimeErrorCode('INCONSISTENT_CASE_EXPRESSION_TYPES', "Case expressions must have the same types, '{0}' is not a '{1}'");
+
+  /**
+   * 7.6.1 Generative Constructors: Let <i>k</i> be a generative constructor. It
+   * is a compile-time error if <i>k</i>'s initializer list contains an
+   * initializer for a variable that is not an instance variable declared in the
+   * immediately surrounding class.
+   *
+   * @param id the name of the initializing formal that is not an instance
+   *        variable in the immediately enclosing class
+   * @see [INITIALIZING_FORMAL_FOR_NON_EXISTENT_FIELD]
+   */
+  static const CompileTimeErrorCode INITIALIZER_FOR_NON_EXISTENT_FIELD = const CompileTimeErrorCode('INITIALIZER_FOR_NON_EXISTENT_FIELD', "'{0}' is not a variable in the enclosing class");
+
+  /**
+   * 7.6.1 Generative Constructors: Let <i>k</i> be a generative constructor. It
+   * is a compile-time error if <i>k</i>'s initializer list contains an
+   * initializer for a variable that is not an instance variable declared in the
+   * immediately surrounding class.
+   *
+   * @param id the name of the initializing formal that is a static variable in
+   *        the immediately enclosing class
    * @see #INITIALIZING_FORMAL_FOR_STATIC_FIELD
    */
-  static const CompileTimeErrorCode INITIALIZER_FOR_STATIC_FIELD = const CompileTimeErrorCode.con1('INITIALIZER_FOR_STATIC_FIELD', 76, "'{0}' is a static variable in the enclosing class, variables initialized in a constructor cannot be static");
-
-  /**
-   * 7.6.1 Generative Constructors: An initializing formal has the form <i>this.id</i>. It is a
-   * compile-time error if <i>id</i> is not the name of an instance variable of the immediately
-   * enclosing class.
-   *
-   * @param id the name of the initializing formal that is not an instance variable in the
-   *          immediately enclosing class
-   * @see #INITIALIZING_FORMAL_FOR_STATIC_FIELD
-   * @see #INITIALIZER_FOR_NON_EXISTENT_FIELD
-   */
-  static const CompileTimeErrorCode INITIALIZING_FORMAL_FOR_NON_EXISTENT_FIELD = const CompileTimeErrorCode.con1('INITIALIZING_FORMAL_FOR_NON_EXISTENT_FIELD', 77, "'{0}' is not a variable in the enclosing class");
-
-  /**
-   * 7.6.1 Generative Constructors: An initializing formal has the form <i>this.id</i>. It is a
-   * compile-time error if <i>id</i> is not the name of an instance variable of the immediately
-   * enclosing class.
-   *
-   * @param id the name of the initializing formal that is a static variable in the immediately
-   *          enclosing class
-   * @see #INITIALIZER_FOR_STATIC_FIELD
-   */
-  static const CompileTimeErrorCode INITIALIZING_FORMAL_FOR_STATIC_FIELD = const CompileTimeErrorCode.con1('INITIALIZING_FORMAL_FOR_STATIC_FIELD', 78, "'{0}' is a static field in the enclosing class, fields initialized in a constructor cannot be static");
-
-  /**
-   * 12.30 Identifier Reference: Otherwise, e is equivalent to the property extraction
-   * <b>this</b>.<i>id</i>.
-   */
-  static const CompileTimeErrorCode INSTANCE_MEMBER_ACCESS_FROM_FACTORY = const CompileTimeErrorCode.con1('INSTANCE_MEMBER_ACCESS_FROM_FACTORY', 79, "Instance members cannot be accessed from a factory constructor");
-
-  /**
-   * 12.30 Identifier Reference: Otherwise, e is equivalent to the property extraction
-   * <b>this</b>.<i>id</i>.
-   */
-  static const CompileTimeErrorCode INSTANCE_MEMBER_ACCESS_FROM_STATIC = const CompileTimeErrorCode.con1('INSTANCE_MEMBER_ACCESS_FROM_STATIC', 80, "Instance members cannot be accessed from a static method");
-
-  /**
-   * Enum proposal: It is also a compile-time error to explicitly instantiate an enum via 'new' or
-   * 'const' or to access its private fields.
-   */
-  static const CompileTimeErrorCode INSTANTIATE_ENUM = const CompileTimeErrorCode.con1('INSTANTIATE_ENUM', 81, "Enums cannot be instantiated");
-
-  /**
-   * 11 Metadata: Metadata consists of a series of annotations, each of which begin with the
-   * character @, followed by a constant expression that must be either a reference to a
-   * compile-time constant variable, or a call to a constant constructor.
-   */
-  static const CompileTimeErrorCode INVALID_ANNOTATION = const CompileTimeErrorCode.con1('INVALID_ANNOTATION', 82, "Annotation can be only constant variable or constant constructor invocation");
-
-  /**
-   * 11 Metadata: Metadata consists of a series of annotations, each of which begin with the
-   * character @, followed by a constant expression that must be either a reference to a
-   * compile-time constant variable, or a call to a constant constructor.
-   *
-   * 12.1 Constants: A qualified reference to a static constant variable that is not qualified by a
-   * deferred prefix.
-   */
-  static const CompileTimeErrorCode INVALID_ANNOTATION_FROM_DEFERRED_LIBRARY = const CompileTimeErrorCode.con1('INVALID_ANNOTATION_FROM_DEFERRED_LIBRARY', 83, "Constant values from a deferred library cannot be used as annotations");
-
-  /**
-   * 15.31 Identifier Reference: It is a compile-time error if any of the identifiers async, await
-   * or yield is used as an identifier in a function body marked with either async, async* or sync*.
-   */
-  static const CompileTimeErrorCode INVALID_IDENTIFIER_IN_ASYNC = const CompileTimeErrorCode.con1('INVALID_IDENTIFIER_IN_ASYNC', 84, "The identifier '{0}' cannot be used in a function marked with async, async* or sync*");
-
-  /**
-   * 9. Functions: It is a compile-time error if an async, async* or sync* modifier is attached to
-   * the body of a setter or constructor.
-   */
-  static const CompileTimeErrorCode INVALID_MODIFIER_ON_CONSTRUCTOR = const CompileTimeErrorCode.con1('INVALID_MODIFIER_ON_CONSTRUCTOR', 85, "The modifier '{0}' cannot be applied to the body of a constructor");
-
-  /**
-   * 9. Functions: It is a compile-time error if an async, async* or sync* modifier is attached to
-   * the body of a setter or constructor.
-   */
-  static const CompileTimeErrorCode INVALID_MODIFIER_ON_SETTER = const CompileTimeErrorCode.con1('INVALID_MODIFIER_ON_SETTER', 86, "The modifier '{0}' cannot be applied to the body of a setter");
-
-  /**
-   * TODO(brianwilkerson) Remove this when we have decided on how to report errors in compile-time
-   * constants. Until then, this acts as a placeholder for more informative errors.
+  static const CompileTimeErrorCode INITIALIZER_FOR_STATIC_FIELD = const CompileTimeErrorCode('INITIALIZER_FOR_STATIC_FIELD', "'{0}' is a static variable in the enclosing class, variables initialized in a constructor cannot be static");
+
+  /**
+   * 7.6.1 Generative Constructors: An initializing formal has the form
+   * <i>this.id</i>. It is a compile-time error if <i>id</i> is not the name of
+   * an instance variable of the immediately enclosing class.
+   *
+   * @param id the name of the initializing formal that is not an instance
+   *        variable in the immediately enclosing class
+   * @see [INITIALIZING_FORMAL_FOR_STATIC_FIELD]
+   * @see [INITIALIZER_FOR_NON_EXISTENT_FIELD]
+   */
+  static const CompileTimeErrorCode INITIALIZING_FORMAL_FOR_NON_EXISTENT_FIELD = const CompileTimeErrorCode('INITIALIZING_FORMAL_FOR_NON_EXISTENT_FIELD', "'{0}' is not a variable in the enclosing class");
+
+  /**
+   * 7.6.1 Generative Constructors: An initializing formal has the form
+   * <i>this.id</i>. It is a compile-time error if <i>id</i> is not the name of
+   * an instance variable of the immediately enclosing class.
+   *
+   * @param id the name of the initializing formal that is a static variable in
+   *        the immediately enclosing class
+   * @see [INITIALIZER_FOR_STATIC_FIELD]
+   */
+  static const CompileTimeErrorCode INITIALIZING_FORMAL_FOR_STATIC_FIELD = const CompileTimeErrorCode('INITIALIZING_FORMAL_FOR_STATIC_FIELD', "'{0}' is a static field in the enclosing class, fields initialized in a constructor cannot be static");
+
+  /**
+   * 12.30 Identifier Reference: Otherwise, e is equivalent to the property
+   * extraction <b>this</b>.<i>id</i>.
+   */
+  static const CompileTimeErrorCode INSTANCE_MEMBER_ACCESS_FROM_FACTORY = const CompileTimeErrorCode('INSTANCE_MEMBER_ACCESS_FROM_FACTORY', "Instance members cannot be accessed from a factory constructor");
+
+  /**
+   * 12.30 Identifier Reference: Otherwise, e is equivalent to the property
+   * extraction <b>this</b>.<i>id</i>.
+   */
+  static const CompileTimeErrorCode INSTANCE_MEMBER_ACCESS_FROM_STATIC = const CompileTimeErrorCode('INSTANCE_MEMBER_ACCESS_FROM_STATIC', "Instance members cannot be accessed from a static method");
+
+  /**
+   * Enum proposal: It is also a compile-time error to explicitly instantiate an
+   * enum via 'new' or 'const' or to access its private fields.
+   */
+  static const CompileTimeErrorCode INSTANTIATE_ENUM = const CompileTimeErrorCode('INSTANTIATE_ENUM', "Enums cannot be instantiated");
+
+  /**
+   * 11 Metadata: Metadata consists of a series of annotations, each of which
+   * begin with the character @, followed by a constant expression that must be
+   * either a reference to a compile-time constant variable, or a call to a
+   * constant constructor.
+   */
+  static const CompileTimeErrorCode INVALID_ANNOTATION = const CompileTimeErrorCode('INVALID_ANNOTATION', "Annotation can be only constant variable or constant constructor invocation");
+
+  /**
+   * 11 Metadata: Metadata consists of a series of annotations, each of which
+   * begin with the character @, followed by a constant expression that must be
+   * either a reference to a compile-time constant variable, or a call to a
+   * constant constructor.
+   *
+   * 12.1 Constants: A qualified reference to a static constant variable that is
+   * not qualified by a deferred prefix.
+   */
+  static const CompileTimeErrorCode INVALID_ANNOTATION_FROM_DEFERRED_LIBRARY = const CompileTimeErrorCode('INVALID_ANNOTATION_FROM_DEFERRED_LIBRARY', "Constant values from a deferred library cannot be used as annotations");
+
+  /**
+   * 15.31 Identifier Reference: It is a compile-time error if any of the
+   * identifiers async, await or yield is used as an identifier in a function
+   * body marked with either async, async* or sync*.
+   */
+  static const CompileTimeErrorCode INVALID_IDENTIFIER_IN_ASYNC = const CompileTimeErrorCode('INVALID_IDENTIFIER_IN_ASYNC', "The identifier '{0}' cannot be used in a function marked with async, async* or sync*");
+
+  /**
+   * 9. Functions: It is a compile-time error if an async, async* or sync*
+   * modifier is attached to the body of a setter or constructor.
+   */
+  static const CompileTimeErrorCode INVALID_MODIFIER_ON_CONSTRUCTOR = const CompileTimeErrorCode('INVALID_MODIFIER_ON_CONSTRUCTOR', "The modifier '{0}' cannot be applied to the body of a constructor");
+
+  /**
+   * 9. Functions: It is a compile-time error if an async, async* or sync*
+   * modifier is attached to the body of a setter or constructor.
+   */
+  static const CompileTimeErrorCode INVALID_MODIFIER_ON_SETTER = const CompileTimeErrorCode('INVALID_MODIFIER_ON_SETTER', "The modifier '{0}' cannot be applied to the body of a setter");
+
+  /**
+   * TODO(brianwilkerson) Remove this when we have decided on how to report
+   * errors in compile-time constants. Until then, this acts as a placeholder
+   * for more informative errors.
    *
    * See TODOs in ConstantVisitor
    */
-  static const CompileTimeErrorCode INVALID_CONSTANT = const CompileTimeErrorCode.con1('INVALID_CONSTANT', 87, "Invalid constant value");
-
-  /**
-   * 7.6 Constructors: It is a compile-time error if the name of a constructor is not a constructor
-   * name.
-   */
-  static const CompileTimeErrorCode INVALID_CONSTRUCTOR_NAME = const CompileTimeErrorCode.con1('INVALID_CONSTRUCTOR_NAME', 88, "Invalid constructor name");
-
-  /**
-   * 7.6.2 Factories: It is a compile-time error if <i>M</i> is not the name of the immediately
-   * enclosing class.
-   */
-  static const CompileTimeErrorCode INVALID_FACTORY_NAME_NOT_A_CLASS = const CompileTimeErrorCode.con1('INVALID_FACTORY_NAME_NOT_A_CLASS', 89, "The name of the immediately enclosing class expected");
-
-  /**
-   * 12.10 This: It is a compile-time error if this appears in a top-level function or variable
-   * initializer, in a factory constructor, or in a static method or variable initializer, or in the
-   * initializer of an instance variable.
-   */
-  static const CompileTimeErrorCode INVALID_REFERENCE_TO_THIS = const CompileTimeErrorCode.con1('INVALID_REFERENCE_TO_THIS', 90, "Invalid reference to 'this' expression");
-
-  /**
-   * 12.6 Lists: It is a compile time error if the type argument of a constant list literal includes
-   * a type parameter.
+  static const CompileTimeErrorCode INVALID_CONSTANT = const CompileTimeErrorCode('INVALID_CONSTANT', "Invalid constant value");
+
+  /**
+   * 7.6 Constructors: It is a compile-time error if the name of a constructor
+   * is not a constructor name.
+   */
+  static const CompileTimeErrorCode INVALID_CONSTRUCTOR_NAME = const CompileTimeErrorCode('INVALID_CONSTRUCTOR_NAME', "Invalid constructor name");
+
+  /**
+   * 7.6.2 Factories: It is a compile-time error if <i>M</i> is not the name of
+   * the immediately enclosing class.
+   */
+  static const CompileTimeErrorCode INVALID_FACTORY_NAME_NOT_A_CLASS = const CompileTimeErrorCode('INVALID_FACTORY_NAME_NOT_A_CLASS', "The name of the immediately enclosing class expected");
+
+  /**
+   * 12.10 This: It is a compile-time error if this appears in a top-level
+   * function or variable initializer, in a factory constructor, or in a static
+   * method or variable initializer, or in the initializer of an instance
+   * variable.
+   */
+  static const CompileTimeErrorCode INVALID_REFERENCE_TO_THIS = const CompileTimeErrorCode('INVALID_REFERENCE_TO_THIS', "Invalid reference to 'this' expression");
+
+  /**
+   * 12.6 Lists: It is a compile time error if the type argument of a constant
+   * list literal includes a type parameter.
    *
    * @name the name of the type parameter
    */
-  static const CompileTimeErrorCode INVALID_TYPE_ARGUMENT_IN_CONST_LIST = const CompileTimeErrorCode.con1('INVALID_TYPE_ARGUMENT_IN_CONST_LIST', 91, "Constant list literals cannot include a type parameter as a type argument, such as '{0}'");
-
-  /**
-   * 12.7 Maps: It is a compile time error if the type arguments of a constant map literal include a
-   * type parameter.
+  static const CompileTimeErrorCode INVALID_TYPE_ARGUMENT_IN_CONST_LIST = const CompileTimeErrorCode('INVALID_TYPE_ARGUMENT_IN_CONST_LIST', "Constant list literals cannot include a type parameter as a type argument, such as '{0}'");
+
+  /**
+   * 12.7 Maps: It is a compile time error if the type arguments of a constant
+   * map literal include a type parameter.
    *
    * @name the name of the type parameter
    */
-  static const CompileTimeErrorCode INVALID_TYPE_ARGUMENT_IN_CONST_MAP = const CompileTimeErrorCode.con1('INVALID_TYPE_ARGUMENT_IN_CONST_MAP', 92, "Constant map literals cannot include a type parameter as a type argument, such as '{0}'");
-
-  /**
-   * 14.2 Exports: It is a compile-time error if the compilation unit found at the specified URI is
-   * not a library declaration.
-   *
-   * 14.1 Imports: It is a compile-time error if the compilation unit found at the specified URI is
-   * not a library declaration.
-   *
-   * 14.3 Parts: It is a compile time error if the contents of the URI are not a valid part
-   * declaration.
+  static const CompileTimeErrorCode INVALID_TYPE_ARGUMENT_IN_CONST_MAP = const CompileTimeErrorCode('INVALID_TYPE_ARGUMENT_IN_CONST_MAP', "Constant map literals cannot include a type parameter as a type argument, such as '{0}'");
+
+  /**
+   * 14.2 Exports: It is a compile-time error if the compilation unit found at
+   * the specified URI is not a library declaration.
+   *
+   * 14.1 Imports: It is a compile-time error if the compilation unit found at
+   * the specified URI is not a library declaration.
+   *
+   * 14.3 Parts: It is a compile time error if the contents of the URI are not a
+   * valid part declaration.
    *
    * @param uri the URI that is invalid
-   * @see #URI_DOES_NOT_EXIST
-   */
-  static const CompileTimeErrorCode INVALID_URI = const CompileTimeErrorCode.con1('INVALID_URI', 93, "Invalid URI syntax: '{0}'");
-
-  /**
-   * 13.13 Break: It is a compile-time error if no such statement <i>s<sub>E</sub></i> exists within
-   * the innermost function in which <i>s<sub>b</sub></i> occurs.
-   *
-   * 13.14 Continue: It is a compile-time error if no such statement or case clause
-   * <i>s<sub>E</sub></i> exists within the innermost function in which <i>s<sub>c</sub></i> occurs.
+   * @see [URI_DOES_NOT_EXIST]
+   */
+  static const CompileTimeErrorCode INVALID_URI = const CompileTimeErrorCode('INVALID_URI', "Invalid URI syntax: '{0}'");
+
+  /**
+   * 13.13 Break: It is a compile-time error if no such statement
+   * <i>s<sub>E</sub></i> exists within the innermost function in which
+   * <i>s<sub>b</sub></i> occurs.
+   *
+   * 13.14 Continue: It is a compile-time error if no such statement or case
+   * clause <i>s<sub>E</sub></i> exists within the innermost function in which
+   * <i>s<sub>c</sub></i> occurs.
    *
    * @param labelName the name of the unresolvable label
    */
-  static const CompileTimeErrorCode LABEL_IN_OUTER_SCOPE = const CompileTimeErrorCode.con1('LABEL_IN_OUTER_SCOPE', 94, "Cannot reference label '{0}' declared in an outer method");
-
-  /**
-   * 13.13 Break: It is a compile-time error if no such statement <i>s<sub>E</sub></i> exists within
-   * the innermost function in which <i>s<sub>b</sub></i> occurs.
-   *
-   * 13.14 Continue: It is a compile-time error if no such statement or case clause
-   * <i>s<sub>E</sub></i> exists within the innermost function in which <i>s<sub>c</sub></i> occurs.
+  static const CompileTimeErrorCode LABEL_IN_OUTER_SCOPE = const CompileTimeErrorCode('LABEL_IN_OUTER_SCOPE', "Cannot reference label '{0}' declared in an outer method");
+
+  /**
+   * 13.13 Break: It is a compile-time error if no such statement
+   * <i>s<sub>E</sub></i> exists within the innermost function in which
+   * <i>s<sub>b</sub></i> occurs.
+   *
+   * 13.14 Continue: It is a compile-time error if no such statement or case
+   * clause <i>s<sub>E</sub></i> exists within the innermost function in which
+   * <i>s<sub>c</sub></i> occurs.
    *
    * @param labelName the name of the unresolvable label
    */
-  static const CompileTimeErrorCode LABEL_UNDEFINED = const CompileTimeErrorCode.con1('LABEL_UNDEFINED', 95, "Cannot reference undefined label '{0}'");
-
-  /**
-   * 7 Classes: It is a compile time error if a class <i>C</i> declares a member with the same name
-   * as <i>C</i>.
-   */
-  static const CompileTimeErrorCode MEMBER_WITH_CLASS_NAME = const CompileTimeErrorCode.con1('MEMBER_WITH_CLASS_NAME', 96, "Class members cannot have the same name as the enclosing class");
-
-  /**
-   * 7.2 Getters: It is a compile-time error if a class has both a getter and a method with the same
-   * name.
+  static const CompileTimeErrorCode LABEL_UNDEFINED = const CompileTimeErrorCode('LABEL_UNDEFINED', "Cannot reference undefined label '{0}'");
+
+  /**
+   * 7 Classes: It is a compile time error if a class <i>C</i> declares a member
+   * with the same name as <i>C</i>.
+   */
+  static const CompileTimeErrorCode MEMBER_WITH_CLASS_NAME = const CompileTimeErrorCode('MEMBER_WITH_CLASS_NAME', "Class members cannot have the same name as the enclosing class");
+
+  /**
+   * 7.2 Getters: It is a compile-time error if a class has both a getter and a
+   * method with the same name.
    *
    * @param name the conflicting name of the getter and method
    */
-  static const CompileTimeErrorCode METHOD_AND_GETTER_WITH_SAME_NAME = const CompileTimeErrorCode.con1('METHOD_AND_GETTER_WITH_SAME_NAME', 97, "'{0}' cannot be used to name a method, there is already a getter with the same name");
+  static const CompileTimeErrorCode METHOD_AND_GETTER_WITH_SAME_NAME = const CompileTimeErrorCode('METHOD_AND_GETTER_WITH_SAME_NAME', "'{0}' cannot be used to name a method, there is already a getter with the same name");
 
   /**
    * 12.1 Constants: A constant expression is ... a constant list literal.
    */
-  static const CompileTimeErrorCode MISSING_CONST_IN_LIST_LITERAL = const CompileTimeErrorCode.con1('MISSING_CONST_IN_LIST_LITERAL', 98, "List literals must be prefixed with 'const' when used as a constant expression");
+  static const CompileTimeErrorCode MISSING_CONST_IN_LIST_LITERAL = const CompileTimeErrorCode('MISSING_CONST_IN_LIST_LITERAL', "List literals must be prefixed with 'const' when used as a constant expression");
 
   /**
    * 12.1 Constants: A constant expression is ... a constant map literal.
    */
-  static const CompileTimeErrorCode MISSING_CONST_IN_MAP_LITERAL = const CompileTimeErrorCode.con1('MISSING_CONST_IN_MAP_LITERAL', 99, "Map literals must be prefixed with 'const' when used as a constant expression");
-
-  /**
-   * Enum proposal: It is a static warning if all of the following conditions hold:
+  static const CompileTimeErrorCode MISSING_CONST_IN_MAP_LITERAL = const CompileTimeErrorCode('MISSING_CONST_IN_MAP_LITERAL', "Map literals must be prefixed with 'const' when used as a constant expression");
+
+  /**
+   * Enum proposal: It is a static warning if all of the following conditions
+   * hold:
    * * The switch statement does not have a 'default' clause.
-   * * The static type of <i>e</i> is an enumerated typed with elements <i>id<sub>1</sub></i>,
-   * &hellip;, <i>id<sub>n</sub></i>.
-   * * The sets {<i>e<sub>1</sub></i>, &hellip;, <i>e<sub>k</sub></i>} and {<i>id<sub>1</sub></i>,
-   * &hellip;, <i>id<sub>n</sub></i>} are not the same.
+   * * The static type of <i>e</i> is an enumerated typed with elements
+   *   <i>id<sub>1</sub></i>, &hellip;, <i>id<sub>n</sub></i>.
+   * * The sets {<i>e<sub>1</sub></i>, &hellip;, <i>e<sub>k</sub></i>} and
+   *   {<i>id<sub>1</sub></i>, &hellip;, <i>id<sub>n</sub></i>} are not the same.
    *
    * @param constantName the name of the constant that is missing
    */
-  static const CompileTimeErrorCode MISSING_ENUM_CONSTANT_IN_SWITCH = const CompileTimeErrorCode.con2('MISSING_ENUM_CONSTANT_IN_SWITCH', 100, "Missing case clause for '{0}'", "Add a case clause for the missing constant or add a default clause.");
-
-  /**
-   * 9 Mixins: It is a compile-time error if a declared or derived mixin explicitly declares a
-   * constructor.
+  static const CompileTimeErrorCode MISSING_ENUM_CONSTANT_IN_SWITCH = const CompileTimeErrorCode('MISSING_ENUM_CONSTANT_IN_SWITCH', "Missing case clause for '{0}'", "Add a case clause for the missing constant or add a default clause.");
+
+  /**
+   * 9 Mixins: It is a compile-time error if a declared or derived mixin
+   * explicitly declares a constructor.
    *
    * @param typeName the name of the mixin that is invalid
    */
-  static const CompileTimeErrorCode MIXIN_DECLARES_CONSTRUCTOR = const CompileTimeErrorCode.con1('MIXIN_DECLARES_CONSTRUCTOR', 101, "The class '{0}' cannot be used as a mixin because it declares a constructor");
-
-  /**
-   * 9.1 Mixin Application: It is a compile-time error if the with clause of a mixin application
-   * <i>C</i> includes a deferred type expression.
+  static const CompileTimeErrorCode MIXIN_DECLARES_CONSTRUCTOR = const CompileTimeErrorCode('MIXIN_DECLARES_CONSTRUCTOR', "The class '{0}' cannot be used as a mixin because it declares a constructor");
+
+  /**
+   * 9.1 Mixin Application: It is a compile-time error if the with clause of a
+   * mixin application <i>C</i> includes a deferred type expression.
    *
    * @param typeName the name of the type that cannot be extended
    * @see #EXTENDS_DEFERRED_CLASS
    * @see #IMPLEMENTS_DEFERRED_CLASS
    */
-  static const CompileTimeErrorCode MIXIN_DEFERRED_CLASS = const CompileTimeErrorCode.con1('MIXIN_DEFERRED_CLASS', 102, "This class cannot mixin the deferred class '{0}'");
-
-  /**
-   * 9 Mixins: It is a compile-time error if a mixin is derived from a class whose superclass is not
-   * Object.
+  static const CompileTimeErrorCode MIXIN_DEFERRED_CLASS = const CompileTimeErrorCode('MIXIN_DEFERRED_CLASS', "This class cannot mixin the deferred class '{0}'");
+
+  /**
+   * 9 Mixins: It is a compile-time error if a mixin is derived from a class
+   * whose superclass is not Object.
    *
    * @param typeName the name of the mixin that is invalid
    */
-  static const CompileTimeErrorCode MIXIN_INHERITS_FROM_NOT_OBJECT = const CompileTimeErrorCode.con1('MIXIN_INHERITS_FROM_NOT_OBJECT', 103, "The class '{0}' cannot be used as a mixin because it extends a class other than Object");
-
-  /**
-   * 12.2 Null: It is a compile-time error for a class to attempt to extend or implement Null.
-   *
-   * 12.3 Numbers: It is a compile-time error for a class to attempt to extend or implement int.
-   *
-   * 12.3 Numbers: It is a compile-time error for a class to attempt to extend or implement double.
-   *
-   * 12.3 Numbers: It is a compile-time error for any type other than the types int and double to
-   * attempt to extend or implement num.
-   *
-   * 12.4 Booleans: It is a compile-time error for a class to attempt to extend or implement bool.
-   *
-   * 12.5 Strings: It is a compile-time error for a class to attempt to extend or implement String.
+  static const CompileTimeErrorCode MIXIN_INHERITS_FROM_NOT_OBJECT = const CompileTimeErrorCode('MIXIN_INHERITS_FROM_NOT_OBJECT', "The class '{0}' cannot be used as a mixin because it extends a class other than Object");
+
+  /**
+   * 12.2 Null: It is a compile-time error for a class to attempt to extend or
+   * implement Null.
+   *
+   * 12.3 Numbers: It is a compile-time error for a class to attempt to extend
+   * or implement int.
+   *
+   * 12.3 Numbers: It is a compile-time error for a class to attempt to extend
+   * or implement double.
+   *
+   * 12.3 Numbers: It is a compile-time error for any type other than the types
+   * int and double to attempt to extend or implement num.
+   *
+   * 12.4 Booleans: It is a compile-time error for a class to attempt to extend
+   * or implement bool.
+   *
+   * 12.5 Strings: It is a compile-time error for a class to attempt to extend
+   * or implement String.
    *
    * @param typeName the name of the type that cannot be extended
-   * @see #IMPLEMENTS_DISALLOWED_CLASS
-   */
-  static const CompileTimeErrorCode MIXIN_OF_DISALLOWED_CLASS = const CompileTimeErrorCode.con1('MIXIN_OF_DISALLOWED_CLASS', 104, "Classes cannot mixin '{0}'");
-
-  /**
-   * Enum proposal: It is a compile-time error to subclass, mix-in or implement an enum.
-   */
-  static const CompileTimeErrorCode MIXIN_OF_ENUM = const CompileTimeErrorCode.con1('MIXIN_OF_ENUM', 105, "Classes cannot mixin an enum");
-
-  /**
-   * 9.1 Mixin Application: It is a compile-time error if <i>M</i> does not denote a class or mixin
-   * available in the immediately enclosing scope.
-   */
-  static const CompileTimeErrorCode MIXIN_OF_NON_CLASS = const CompileTimeErrorCode.con1('MIXIN_OF_NON_CLASS', 106, "Classes can only mixin other classes");
-
-  /**
-   * 9 Mixins: It is a compile-time error if a declared or derived mixin refers to super.
-   */
-  static const CompileTimeErrorCode MIXIN_REFERENCES_SUPER = const CompileTimeErrorCode.con1('MIXIN_REFERENCES_SUPER', 107, "The class '{0}' cannot be used as a mixin because it references 'super'");
-
-  /**
-   * 9.1 Mixin Application: It is a compile-time error if <i>S</i> does not denote a class available
-   * in the immediately enclosing scope.
-   */
-  static const CompileTimeErrorCode MIXIN_WITH_NON_CLASS_SUPERCLASS = const CompileTimeErrorCode.con1('MIXIN_WITH_NON_CLASS_SUPERCLASS', 108, "Mixin can only be applied to class");
-
-  /**
-   * 7.6.1 Generative Constructors: A generative constructor may be redirecting, in which case its
-   * only action is to invoke another generative constructor.
-   */
-  static const CompileTimeErrorCode MULTIPLE_REDIRECTING_CONSTRUCTOR_INVOCATIONS = const CompileTimeErrorCode.con1('MULTIPLE_REDIRECTING_CONSTRUCTOR_INVOCATIONS', 109, "Constructor may have at most one 'this' redirection");
-
-  /**
-   * 7.6.1 Generative Constructors: Let <i>k</i> be a generative constructor. Then <i>k</i> may
-   * include at most one superinitializer in its initializer list or a compile time error occurs.
-   */
-  static const CompileTimeErrorCode MULTIPLE_SUPER_INITIALIZERS = const CompileTimeErrorCode.con1('MULTIPLE_SUPER_INITIALIZERS', 110, "Constructor may have at most one 'super' initializer");
-
-  /**
-   * 11 Metadata: Metadata consists of a series of annotations, each of which begin with the
-   * character @, followed by a constant expression that must be either a reference to a
-   * compile-time constant variable, or a call to a constant constructor.
-   */
-  static const CompileTimeErrorCode NO_ANNOTATION_CONSTRUCTOR_ARGUMENTS = const CompileTimeErrorCode.con1('NO_ANNOTATION_CONSTRUCTOR_ARGUMENTS', 111, "Annotation creation must have arguments");
-
-  /**
-   * 7.6.1 Generative Constructors: If no superinitializer is provided, an implicit superinitializer
-   * of the form <b>super</b>() is added at the end of <i>k</i>'s initializer list, unless the
-   * enclosing class is class <i>Object</i>.
-   *
-   * 7.6.1 Generative constructors. It is a compile-time error if class <i>S</i> does not declare a
-   * generative constructor named <i>S</i> (respectively <i>S.id</i>)
-   */
-  static const CompileTimeErrorCode NO_DEFAULT_SUPER_CONSTRUCTOR_EXPLICIT = const CompileTimeErrorCode.con1('NO_DEFAULT_SUPER_CONSTRUCTOR_EXPLICIT', 112, "The class '{0}' does not have a default constructor");
-
-  /**
-   * 7.6 Constructors: Iff no constructor is specified for a class <i>C</i>, it implicitly has a
-   * default constructor C() : <b>super<b>() {}, unless <i>C</i> is class <i>Object</i>.
-   *
-   * 7.6.1 Generative constructors. It is a compile-time error if class <i>S</i> does not declare a
-   * generative constructor named <i>S</i> (respectively <i>S.id</i>)
-   */
-  static const CompileTimeErrorCode NO_DEFAULT_SUPER_CONSTRUCTOR_IMPLICIT = const CompileTimeErrorCode.con1('NO_DEFAULT_SUPER_CONSTRUCTOR_IMPLICIT', 113, "The class '{0}' does not have a default constructor");
-
-  /**
-   * 13.2 Expression Statements: It is a compile-time error if a non-constant map literal that has
-   * no explicit type arguments appears in a place where a statement is expected.
-   */
-  static const CompileTimeErrorCode NON_CONST_MAP_AS_EXPRESSION_STATEMENT = const CompileTimeErrorCode.con1('NON_CONST_MAP_AS_EXPRESSION_STATEMENT', 114, "A non-constant map literal without type arguments cannot be used as an expression statement");
-
-  /**
-   * 13.9 Switch: Given a switch statement of the form <i>switch (e) { label<sub>11</sub> &hellip;
-   * label<sub>1j1</sub> case e<sub>1</sub>: s<sub>1</sub> &hellip; label<sub>n1</sub> &hellip;
-   * label<sub>njn</sub> case e<sub>n</sub>: s<sub>n</sub> default: s<sub>n+1</sub>}</i> or the form
-   * <i>switch (e) { label<sub>11</sub> &hellip; label<sub>1j1</sub> case e<sub>1</sub>:
-   * s<sub>1</sub> &hellip; label<sub>n1</sub> &hellip; label<sub>njn</sub> case e<sub>n</sub>:
-   * s<sub>n</sub>}</i>, it is a compile-time error if the expressions <i>e<sub>k</sub></i> are not
+   * @see [IMPLEMENTS_DISALLOWED_CLASS]
+   */
+  static const CompileTimeErrorCode MIXIN_OF_DISALLOWED_CLASS = const CompileTimeErrorCode('MIXIN_OF_DISALLOWED_CLASS', "Classes cannot mixin '{0}'");
+
+  /**
+   * Enum proposal: It is a compile-time error to subclass, mix-in or implement
+   * an enum.
+   */
+  static const CompileTimeErrorCode MIXIN_OF_ENUM = const CompileTimeErrorCode('MIXIN_OF_ENUM', "Classes cannot mixin an enum");
+
+  /**
+   * 9.1 Mixin Application: It is a compile-time error if <i>M</i> does not
+   * denote a class or mixin available in the immediately enclosing scope.
+   */
+  static const CompileTimeErrorCode MIXIN_OF_NON_CLASS = const CompileTimeErrorCode('MIXIN_OF_NON_CLASS', "Classes can only mixin other classes");
+
+  /**
+   * 9 Mixins: It is a compile-time error if a declared or derived mixin refers
+   * to super.
+   */
+  static const CompileTimeErrorCode MIXIN_REFERENCES_SUPER = const CompileTimeErrorCode('MIXIN_REFERENCES_SUPER', "The class '{0}' cannot be used as a mixin because it references 'super'");
+
+  /**
+   * 9.1 Mixin Application: It is a compile-time error if <i>S</i> does not
+   * denote a class available in the immediately enclosing scope.
+   */
+  static const CompileTimeErrorCode MIXIN_WITH_NON_CLASS_SUPERCLASS = const CompileTimeErrorCode('MIXIN_WITH_NON_CLASS_SUPERCLASS', "Mixin can only be applied to class");
+
+  /**
+   * 7.6.1 Generative Constructors: A generative constructor may be redirecting,
+   * in which case its only action is to invoke another generative constructor.
+   */
+  static const CompileTimeErrorCode MULTIPLE_REDIRECTING_CONSTRUCTOR_INVOCATIONS = const CompileTimeErrorCode('MULTIPLE_REDIRECTING_CONSTRUCTOR_INVOCATIONS', "Constructor may have at most one 'this' redirection");
+
+  /**
+   * 7.6.1 Generative Constructors: Let <i>k</i> be a generative constructor.
+   * Then <i>k</i> may include at most one superinitializer in its initializer
+   * list or a compile time error occurs.
+   */
+  static const CompileTimeErrorCode MULTIPLE_SUPER_INITIALIZERS = const CompileTimeErrorCode('MULTIPLE_SUPER_INITIALIZERS', "Constructor may have at most one 'super' initializer");
+
+  /**
+   * 11 Metadata: Metadata consists of a series of annotations, each of which
+   * begin with the character @, followed by a constant expression that must be
+   * either a reference to a compile-time constant variable, or a call to a
+   * constant constructor.
+   */
+  static const CompileTimeErrorCode NO_ANNOTATION_CONSTRUCTOR_ARGUMENTS = const CompileTimeErrorCode('NO_ANNOTATION_CONSTRUCTOR_ARGUMENTS', "Annotation creation must have arguments");
+
+  /**
+   * 7.6.1 Generative Constructors: If no superinitializer is provided, an
+   * implicit superinitializer of the form <b>super</b>() is added at the end of
+   * <i>k</i>'s initializer list, unless the enclosing class is class
+   * <i>Object</i>.
+   *
+   * 7.6.1 Generative constructors. It is a compile-time error if class <i>S</i>
+   * does not declare a generative constructor named <i>S</i> (respectively
+   * <i>S.id</i>)
+   */
+  static const CompileTimeErrorCode NO_DEFAULT_SUPER_CONSTRUCTOR_EXPLICIT = const CompileTimeErrorCode('NO_DEFAULT_SUPER_CONSTRUCTOR_EXPLICIT', "The class '{0}' does not have a default constructor");
+
+  /**
+   * 7.6 Constructors: Iff no constructor is specified for a class <i>C</i>, it
+   * implicitly has a default constructor C() : <b>super<b>() {}, unless
+   * <i>C</i> is class <i>Object</i>.
+   *
+   * 7.6.1 Generative constructors. It is a compile-time error if class <i>S</i>
+   * does not declare a generative constructor named <i>S</i> (respectively
+   * <i>S.id</i>)
+   */
+  static const CompileTimeErrorCode NO_DEFAULT_SUPER_CONSTRUCTOR_IMPLICIT = const CompileTimeErrorCode('NO_DEFAULT_SUPER_CONSTRUCTOR_IMPLICIT', "The class '{0}' does not have a default constructor");
+
+  /**
+   * 13.2 Expression Statements: It is a compile-time error if a non-constant
+   * map literal that has no explicit type arguments appears in a place where a
+   * statement is expected.
+   */
+  static const CompileTimeErrorCode NON_CONST_MAP_AS_EXPRESSION_STATEMENT = const CompileTimeErrorCode('NON_CONST_MAP_AS_EXPRESSION_STATEMENT', "A non-constant map literal without type arguments cannot be used as an expression statement");
+
+  /**
+   * 13.9 Switch: Given a switch statement of the form <i>switch (e) {
+   * label<sub>11</sub> &hellip; label<sub>1j1</sub> case e<sub>1</sub>:
+   * s<sub>1</sub> &hellip; label<sub>n1</sub> &hellip; label<sub>njn</sub> case
+   * e<sub>n</sub>: s<sub>n</sub> default: s<sub>n+1</sub>}</i> or the form
+   * <i>switch (e) { label<sub>11</sub> &hellip; label<sub>1j1</sub> case
+   * e<sub>1</sub>: s<sub>1</sub> &hellip; label<sub>n1</sub> &hellip;
+   * label<sub>njn</sub> case e<sub>n</sub>: s<sub>n</sub>}</i>, it is a
+   * compile-time error if the expressions <i>e<sub>k</sub></i> are not
    * compile-time constants, for all <i>1 &lt;= k &lt;= n</i>.
    */
-  static const CompileTimeErrorCode NON_CONSTANT_CASE_EXPRESSION = const CompileTimeErrorCode.con1('NON_CONSTANT_CASE_EXPRESSION', 115, "Case expressions must be constant");
-
-  /**
-   * 13.9 Switch: Given a switch statement of the form <i>switch (e) { label<sub>11</sub> &hellip;
-   * label<sub>1j1</sub> case e<sub>1</sub>: s<sub>1</sub> &hellip; label<sub>n1</sub> &hellip;
-   * label<sub>njn</sub> case e<sub>n</sub>: s<sub>n</sub> default: s<sub>n+1</sub>}</i> or the form
-   * <i>switch (e) { label<sub>11</sub> &hellip; label<sub>1j1</sub> case e<sub>1</sub>:
-   * s<sub>1</sub> &hellip; label<sub>n1</sub> &hellip; label<sub>njn</sub> case e<sub>n</sub>:
-   * s<sub>n</sub>}</i>, it is a compile-time error if the expressions <i>e<sub>k</sub></i> are not
+  static const CompileTimeErrorCode NON_CONSTANT_CASE_EXPRESSION = const CompileTimeErrorCode('NON_CONSTANT_CASE_EXPRESSION', "Case expressions must be constant");
+
+  /**
+   * 13.9 Switch: Given a switch statement of the form <i>switch (e) {
+   * label<sub>11</sub> &hellip; label<sub>1j1</sub> case e<sub>1</sub>:
+   * s<sub>1</sub> &hellip; label<sub>n1</sub> &hellip; label<sub>njn</sub> case
+   * e<sub>n</sub>: s<sub>n</sub> default: s<sub>n+1</sub>}</i> or the form
+   * <i>switch (e) { label<sub>11</sub> &hellip; label<sub>1j1</sub> case
+   * e<sub>1</sub>: s<sub>1</sub> &hellip; label<sub>n1</sub> &hellip;
+   * label<sub>njn</sub> case e<sub>n</sub>: s<sub>n</sub>}</i>, it is a
+   * compile-time error if the expressions <i>e<sub>k</sub></i> are not
    * compile-time constants, for all <i>1 &lt;= k &lt;= n</i>.
    *
-   * 12.1 Constants: A qualified reference to a static constant variable that is not qualified by a
-   * deferred prefix.
-   */
-  static const CompileTimeErrorCode NON_CONSTANT_CASE_EXPRESSION_FROM_DEFERRED_LIBRARY = const CompileTimeErrorCode.con1('NON_CONSTANT_CASE_EXPRESSION_FROM_DEFERRED_LIBRARY', 116, "Constant values from a deferred library cannot be used as a case expression");
-
-  /**
-   * 6.2.2 Optional Formals: It is a compile-time error if the default value of an optional
-   * parameter is not a compile-time constant.
-   */
-  static const CompileTimeErrorCode NON_CONSTANT_DEFAULT_VALUE = const CompileTimeErrorCode.con1('NON_CONSTANT_DEFAULT_VALUE', 117, "Default values of an optional parameter must be constant");
-
-  /**
-   * 6.2.2 Optional Formals: It is a compile-time error if the default value of an optional
-   * parameter is not a compile-time constant.
-   *
-   * 12.1 Constants: A qualified reference to a static constant variable that is not qualified by a
-   * deferred prefix.
-   */
-  static const CompileTimeErrorCode NON_CONSTANT_DEFAULT_VALUE_FROM_DEFERRED_LIBRARY = const CompileTimeErrorCode.con1('NON_CONSTANT_DEFAULT_VALUE_FROM_DEFERRED_LIBRARY', 118, "Constant values from a deferred library cannot be used as a default parameter value");
-
-  /**
-   * 12.6 Lists: It is a compile time error if an element of a constant list literal is not a
-   * compile-time constant.
-   */
-  static const CompileTimeErrorCode NON_CONSTANT_LIST_ELEMENT = const CompileTimeErrorCode.con1('NON_CONSTANT_LIST_ELEMENT', 119, "'const' lists must have all constant values");
-
-  /**
-   * 12.6 Lists: It is a compile time error if an element of a constant list literal is not a
-   * compile-time constant.
-   *
-   * 12.1 Constants: A qualified reference to a static constant variable that is not qualified by a
-   * deferred prefix.
-   */
-  static const CompileTimeErrorCode NON_CONSTANT_LIST_ELEMENT_FROM_DEFERRED_LIBRARY = const CompileTimeErrorCode.con1('NON_CONSTANT_LIST_ELEMENT_FROM_DEFERRED_LIBRARY', 120, "Constant values from a deferred library cannot be used as values in a 'const' list");
-
-  /**
-   * 12.7 Maps: It is a compile time error if either a key or a value of an entry in a constant map
+   * 12.1 Constants: A qualified reference to a static constant variable that is
+   * not qualified by a deferred prefix.
+   */
+  static const CompileTimeErrorCode NON_CONSTANT_CASE_EXPRESSION_FROM_DEFERRED_LIBRARY = const CompileTimeErrorCode('NON_CONSTANT_CASE_EXPRESSION_FROM_DEFERRED_LIBRARY', "Constant values from a deferred library cannot be used as a case expression");
+
+  /**
+   * 6.2.2 Optional Formals: It is a compile-time error if the default value of
+   * an optional parameter is not a compile-time constant.
+   */
+  static const CompileTimeErrorCode NON_CONSTANT_DEFAULT_VALUE = const CompileTimeErrorCode('NON_CONSTANT_DEFAULT_VALUE', "Default values of an optional parameter must be constant");
+
+  /**
+   * 6.2.2 Optional Formals: It is a compile-time error if the default value of
+   * an optional parameter is not a compile-time constant.
+   *
+   * 12.1 Constants: A qualified reference to a static constant variable that is
+   * not qualified by a deferred prefix.
+   */
+  static const CompileTimeErrorCode NON_CONSTANT_DEFAULT_VALUE_FROM_DEFERRED_LIBRARY = const CompileTimeErrorCode('NON_CONSTANT_DEFAULT_VALUE_FROM_DEFERRED_LIBRARY', "Constant values from a deferred library cannot be used as a default parameter value");
+
+  /**
+   * 12.6 Lists: It is a compile time error if an element of a constant list
    * literal is not a compile-time constant.
    */
-  static const CompileTimeErrorCode NON_CONSTANT_MAP_KEY = const CompileTimeErrorCode.con1('NON_CONSTANT_MAP_KEY', 121, "The keys in a map must be constant");
-
-  /**
-   * 12.7 Maps: It is a compile time error if either a key or a value of an entry in a constant map
+  static const CompileTimeErrorCode NON_CONSTANT_LIST_ELEMENT = const CompileTimeErrorCode('NON_CONSTANT_LIST_ELEMENT', "'const' lists must have all constant values");
+
+  /**
+   * 12.6 Lists: It is a compile time error if an element of a constant list
    * literal is not a compile-time constant.
    *
-   * 12.1 Constants: A qualified reference to a static constant variable that is not qualified by a
-   * deferred prefix.
-   */
-  static const CompileTimeErrorCode NON_CONSTANT_MAP_KEY_FROM_DEFERRED_LIBRARY = const CompileTimeErrorCode.con1('NON_CONSTANT_MAP_KEY_FROM_DEFERRED_LIBRARY', 122, "Constant values from a deferred library cannot be used as keys in a map");
-
-  /**
-   * 12.7 Maps: It is a compile time error if either a key or a value of an entry in a constant map
-   * literal is not a compile-time constant.
-   */
-  static const CompileTimeErrorCode NON_CONSTANT_MAP_VALUE = const CompileTimeErrorCode.con1('NON_CONSTANT_MAP_VALUE', 123, "The values in a 'const' map must be constant");
-
-  /**
-   * 12.7 Maps: It is a compile time error if either a key or a value of an entry in a constant map
-   * literal is not a compile-time constant.
-   *
-   * 12.1 Constants: A qualified reference to a static constant variable that is not qualified by a
-   * deferred prefix.
-   */
-  static const CompileTimeErrorCode NON_CONSTANT_MAP_VALUE_FROM_DEFERRED_LIBRARY = const CompileTimeErrorCode.con1('NON_CONSTANT_MAP_VALUE_FROM_DEFERRED_LIBRARY', 124, "Constant values from a deferred library cannot be used as values in a 'const' map");
-
-  /**
-   * 11 Metadata: Metadata consists of a series of annotations, each of which begin with the
-   * character @, followed by a constant expression that must be either a reference to a
-   * compile-time constant variable, or a call to a constant constructor.
+   * 12.1 Constants: A qualified reference to a static constant variable that is
+   * not qualified by a deferred prefix.
+   */
+  static const CompileTimeErrorCode NON_CONSTANT_LIST_ELEMENT_FROM_DEFERRED_LIBRARY = const CompileTimeErrorCode('NON_CONSTANT_LIST_ELEMENT_FROM_DEFERRED_LIBRARY', "Constant values from a deferred library cannot be used as values in a 'const' list");
+
+  /**
+   * 12.7 Maps: It is a compile time error if either a key or a value of an
+   * entry in a constant map literal is not a compile-time constant.
+   */
+  static const CompileTimeErrorCode NON_CONSTANT_MAP_KEY = const CompileTimeErrorCode('NON_CONSTANT_MAP_KEY', "The keys in a map must be constant");
+
+  /**
+   * 12.7 Maps: It is a compile time error if either a key or a value of an
+   * entry in a constant map literal is not a compile-time constant.
+   *
+   * 12.1 Constants: A qualified reference to a static constant variable that is
+   * not qualified by a deferred prefix.
+   */
+  static const CompileTimeErrorCode NON_CONSTANT_MAP_KEY_FROM_DEFERRED_LIBRARY = const CompileTimeErrorCode('NON_CONSTANT_MAP_KEY_FROM_DEFERRED_LIBRARY', "Constant values from a deferred library cannot be used as keys in a map");
+
+  /**
+   * 12.7 Maps: It is a compile time error if either a key or a value of an
+   * entry in a constant map literal is not a compile-time constant.
+   */
+  static const CompileTimeErrorCode NON_CONSTANT_MAP_VALUE = const CompileTimeErrorCode('NON_CONSTANT_MAP_VALUE', "The values in a 'const' map must be constant");
+
+  /**
+   * 12.7 Maps: It is a compile time error if either a key or a value of an
+   * entry in a constant map literal is not a compile-time constant.
+   *
+   * 12.1 Constants: A qualified reference to a static constant variable that is
+   * not qualified by a deferred prefix.
+   */
+  static const CompileTimeErrorCode NON_CONSTANT_MAP_VALUE_FROM_DEFERRED_LIBRARY = const CompileTimeErrorCode('NON_CONSTANT_MAP_VALUE_FROM_DEFERRED_LIBRARY', "Constant values from a deferred library cannot be used as values in a 'const' map");
+
+  /**
+   * 11 Metadata: Metadata consists of a series of annotations, each of which
+   * begin with the character @, followed by a constant expression that must be
+   * either a reference to a compile-time constant variable, or a call to a
+   * constant constructor.
    *
    * "From deferred library" case is covered by
    * [CompileTimeErrorCode#INVALID_ANNOTATION_FROM_DEFERRED_LIBRARY].
    */
-  static const CompileTimeErrorCode NON_CONSTANT_ANNOTATION_CONSTRUCTOR = const CompileTimeErrorCode.con1('NON_CONSTANT_ANNOTATION_CONSTRUCTOR', 125, "Annotation creation can use only 'const' constructor");
-
-  /**
-   * 7.6.3 Constant Constructors: Any expression that appears within the initializer list of a
-   * constant constructor must be a potentially constant expression, or a compile-time error occurs.
-   */
-  static const CompileTimeErrorCode NON_CONSTANT_VALUE_IN_INITIALIZER = const CompileTimeErrorCode.con1('NON_CONSTANT_VALUE_IN_INITIALIZER', 126, "Initializer expressions in constant constructors must be constants");
-
-  /**
-   * 7.6.3 Constant Constructors: Any expression that appears within the initializer list of a
-   * constant constructor must be a potentially constant expression, or a compile-time error occurs.
-   *
-   * 12.1 Constants: A qualified reference to a static constant variable that is not qualified by a
-   * deferred prefix.
-   */
-  static const CompileTimeErrorCode NON_CONSTANT_VALUE_IN_INITIALIZER_FROM_DEFERRED_LIBRARY = const CompileTimeErrorCode.con1('NON_CONSTANT_VALUE_IN_INITIALIZER_FROM_DEFERRED_LIBRARY', 127, "Constant values from a deferred library cannot be used as constant initializers");
-
-  /**
-   * 12.14.2 Binding Actuals to Formals: It is a static warning if <i>m < h</i> or if <i>m > n</i>.
-   *
-   * 12.11.2 Const: It is a compile-time error if evaluation of a constant object results in an
-   * uncaught exception being thrown.
+  static const CompileTimeErrorCode NON_CONSTANT_ANNOTATION_CONSTRUCTOR = const CompileTimeErrorCode('NON_CONSTANT_ANNOTATION_CONSTRUCTOR', "Annotation creation can use only 'const' constructor");
+
+  /**
+   * 7.6.3 Constant Constructors: Any expression that appears within the
+   * initializer list of a constant constructor must be a potentially constant
+   * expression, or a compile-time error occurs.
+   */
+  static const CompileTimeErrorCode NON_CONSTANT_VALUE_IN_INITIALIZER = const CompileTimeErrorCode('NON_CONSTANT_VALUE_IN_INITIALIZER', "Initializer expressions in constant constructors must be constants");
+
+  /**
+   * 7.6.3 Constant Constructors: Any expression that appears within the
+   * initializer list of a constant constructor must be a potentially constant
+   * expression, or a compile-time error occurs.
+   *
+   * 12.1 Constants: A qualified reference to a static constant variable that is
+   * not qualified by a deferred prefix.
+   */
+  static const CompileTimeErrorCode NON_CONSTANT_VALUE_IN_INITIALIZER_FROM_DEFERRED_LIBRARY = const CompileTimeErrorCode('NON_CONSTANT_VALUE_IN_INITIALIZER_FROM_DEFERRED_LIBRARY', "Constant values from a deferred library cannot be used as constant initializers");
+
+  /**
+   * 12.14.2 Binding Actuals to Formals: It is a static warning if <i>m < h</i>
+   * or if <i>m > n</i>.
+   *
+   * 12.11.2 Const: It is a compile-time error if evaluation of a constant
+   * object results in an uncaught exception being thrown.
    *
    * @param requiredCount the expected number of required arguments
    * @param argumentCount the actual number of positional arguments given
    */
-  static const CompileTimeErrorCode NOT_ENOUGH_REQUIRED_ARGUMENTS = const CompileTimeErrorCode.con1('NOT_ENOUGH_REQUIRED_ARGUMENTS', 128, "{0} required argument(s) expected, but {1} found");
-
-  /**
-   * 7.6.1 Generative Constructors: Let <i>C</i> be the class in which the superinitializer appears
-   * and let <i>S</i> be the superclass of <i>C</i>. Let <i>k</i> be a generative constructor. It is
-   * a compile-time error if class <i>S</i> does not declare a generative constructor named <i>S</i>
+  static const CompileTimeErrorCode NOT_ENOUGH_REQUIRED_ARGUMENTS = const CompileTimeErrorCode('NOT_ENOUGH_REQUIRED_ARGUMENTS', "{0} required argument(s) expected, but {1} found");
+
+  /**
+   * 7.6.1 Generative Constructors: Let <i>C</i> be the class in which the
+   * superinitializer appears and let <i>S</i> be the superclass of <i>C</i>.
+   * Let <i>k</i> be a generative constructor. It is a compile-time error if
+   * class <i>S</i> does not declare a generative constructor named <i>S</i>
    * (respectively <i>S.id</i>)
    */
-  static const CompileTimeErrorCode NON_GENERATIVE_CONSTRUCTOR = const CompileTimeErrorCode.con1('NON_GENERATIVE_CONSTRUCTOR', 129, "The generative constructor '{0}' expected, but factory found");
-
-  /**
-   * 7.9 Superclasses: It is a compile-time error to specify an extends clause for class Object.
-   */
-  static const CompileTimeErrorCode OBJECT_CANNOT_EXTEND_ANOTHER_CLASS = const CompileTimeErrorCode.con1('OBJECT_CANNOT_EXTEND_ANOTHER_CLASS', 130, "");
-
-  /**
-   * 7.1.1 Operators: It is a compile-time error to declare an optional parameter in an operator.
-   */
-  static const CompileTimeErrorCode OPTIONAL_PARAMETER_IN_OPERATOR = const CompileTimeErrorCode.con1('OPTIONAL_PARAMETER_IN_OPERATOR', 131, "Optional parameters are not allowed when defining an operator");
-
-  /**
-   * 14.3 Parts: It is a compile time error if the contents of the URI are not a valid part
-   * declaration.
+  static const CompileTimeErrorCode NON_GENERATIVE_CONSTRUCTOR = const CompileTimeErrorCode('NON_GENERATIVE_CONSTRUCTOR', "The generative constructor '{0}' expected, but factory found");
+
+  /**
+   * 7.9 Superclasses: It is a compile-time error to specify an extends clause
+   * for class Object.
+   */
+  static const CompileTimeErrorCode OBJECT_CANNOT_EXTEND_ANOTHER_CLASS = const CompileTimeErrorCode('OBJECT_CANNOT_EXTEND_ANOTHER_CLASS', "");
+
+  /**
+   * 7.1.1 Operators: It is a compile-time error to declare an optional
+   * parameter in an operator.
+   */
+  static const CompileTimeErrorCode OPTIONAL_PARAMETER_IN_OPERATOR = const CompileTimeErrorCode('OPTIONAL_PARAMETER_IN_OPERATOR', "Optional parameters are not allowed when defining an operator");
+
+  /**
+   * 14.3 Parts: It is a compile time error if the contents of the URI are not a
+   * valid part declaration.
    *
    * @param uri the uri pointing to a non-library declaration
    */
-  static const CompileTimeErrorCode PART_OF_NON_PART = const CompileTimeErrorCode.con1('PART_OF_NON_PART', 132, "The included part '{0}' must have a part-of directive");
-
-  /**
-   * 14.1 Imports: It is a compile-time error if the current library declares a top-level member
-   * named <i>p</i>.
-   */
-  static const CompileTimeErrorCode PREFIX_COLLIDES_WITH_TOP_LEVEL_MEMBER = const CompileTimeErrorCode.con1('PREFIX_COLLIDES_WITH_TOP_LEVEL_MEMBER', 133, "The name '{0}' is already used as an import prefix and cannot be used to name a top-level element");
-
-  /**
-   * 6.2.2 Optional Formals: It is a compile-time error if the name of a named optional parameter
-   * begins with an '_' character.
-   */
-  static const CompileTimeErrorCode PRIVATE_OPTIONAL_PARAMETER = const CompileTimeErrorCode.con1('PRIVATE_OPTIONAL_PARAMETER', 134, "Named optional parameters cannot start with an underscore");
-
-  /**
-   * 12.1 Constants: It is a compile-time error if the value of a compile-time constant expression
-   * depends on itself.
-   */
-  static const CompileTimeErrorCode RECURSIVE_COMPILE_TIME_CONSTANT = const CompileTimeErrorCode.con1('RECURSIVE_COMPILE_TIME_CONSTANT', 135, "");
-
-  /**
-   * 7.6.1 Generative Constructors: A generative constructor may be redirecting, in which case its
-   * only action is to invoke another generative constructor.
-   *
-   * TODO(scheglov) review this later, there are no explicit "it is a compile-time error" in
-   * specification. But it was added to the co19 and there is same error for factories.
+  static const CompileTimeErrorCode PART_OF_NON_PART = const CompileTimeErrorCode('PART_OF_NON_PART', "The included part '{0}' must have a part-of directive");
+
+  /**
+   * 14.1 Imports: It is a compile-time error if the current library declares a
+   * top-level member named <i>p</i>.
+   */
+  static const CompileTimeErrorCode PREFIX_COLLIDES_WITH_TOP_LEVEL_MEMBER = const CompileTimeErrorCode('PREFIX_COLLIDES_WITH_TOP_LEVEL_MEMBER', "The name '{0}' is already used as an import prefix and cannot be used to name a top-level element");
+
+  /**
+   * 6.2.2 Optional Formals: It is a compile-time error if the name of a named
+   * optional parameter begins with an '_' character.
+   */
+  static const CompileTimeErrorCode PRIVATE_OPTIONAL_PARAMETER = const CompileTimeErrorCode('PRIVATE_OPTIONAL_PARAMETER', "Named optional parameters cannot start with an underscore");
+
+  /**
+   * 12.1 Constants: It is a compile-time error if the value of a compile-time
+   * constant expression depends on itself.
+   */
+  static const CompileTimeErrorCode RECURSIVE_COMPILE_TIME_CONSTANT = const CompileTimeErrorCode('RECURSIVE_COMPILE_TIME_CONSTANT', "");
+
+  /**
+   * 7.6.1 Generative Constructors: A generative constructor may be redirecting,
+   * in which case its only action is to invoke another generative constructor.
+   *
+   * TODO(scheglov) review this later, there are no explicit "it is a
+   * compile-time error" in specification. But it was added to the co19 and
+   * there is same error for factories.
    *
    * https://code.google.com/p/dart/issues/detail?id=954
    */
-  static const CompileTimeErrorCode RECURSIVE_CONSTRUCTOR_REDIRECT = const CompileTimeErrorCode.con1('RECURSIVE_CONSTRUCTOR_REDIRECT', 136, "Cycle in redirecting generative constructors");
-
-  /**
-   * 7.6.2 Factories: It is a compile-time error if a redirecting factory constructor redirects to
-   * itself, either directly or indirectly via a sequence of redirections.
-   */
-  static const CompileTimeErrorCode RECURSIVE_FACTORY_REDIRECT = const CompileTimeErrorCode.con1('RECURSIVE_FACTORY_REDIRECT', 137, "Cycle in redirecting factory constructors");
-
-  /**
-   * 7.10 Superinterfaces: It is a compile-time error if the interface of a class <i>C</i> is a
+  static const CompileTimeErrorCode RECURSIVE_CONSTRUCTOR_REDIRECT = const CompileTimeErrorCode('RECURSIVE_CONSTRUCTOR_REDIRECT', "Cycle in redirecting generative constructors");
+
+  /**
+   * 7.6.2 Factories: It is a compile-time error if a redirecting factory
+   * constructor redirects to itself, either directly or indirectly via a
+   * sequence of redirections.
+   */
+  static const CompileTimeErrorCode RECURSIVE_FACTORY_REDIRECT = const CompileTimeErrorCode('RECURSIVE_FACTORY_REDIRECT', "Cycle in redirecting factory constructors");
+
+  /**
+   * 7.10 Superinterfaces: It is a compile-time error if the interface of a
+   * class <i>C</i> is a superinterface of itself.
+   *
+   * 8.1 Superinterfaces: It is a compile-time error if an interface is a
    * superinterface of itself.
    *
-   * 8.1 Superinterfaces: It is a compile-time error if an interface is a superinterface of itself.
-   *
-   * 7.9 Superclasses: It is a compile-time error if a class <i>C</i> is a superclass of itself.
+   * 7.9 Superclasses: It is a compile-time error if a class <i>C</i> is a
+   * superclass of itself.
    *
    * @param className the name of the class that implements itself recursively
    * @param strImplementsPath a string representation of the implements loop
    */
-  static const CompileTimeErrorCode RECURSIVE_INTERFACE_INHERITANCE = const CompileTimeErrorCode.con1('RECURSIVE_INTERFACE_INHERITANCE', 138, "'{0}' cannot be a superinterface of itself: {1}");
-
-  /**
-   * 7.10 Superinterfaces: It is a compile-time error if the interface of a class <i>C</i> is a
+  static const CompileTimeErrorCode RECURSIVE_INTERFACE_INHERITANCE = const CompileTimeErrorCode('RECURSIVE_INTERFACE_INHERITANCE', "'{0}' cannot be a superinterface of itself: {1}");
+
+  /**
+   * 7.10 Superinterfaces: It is a compile-time error if the interface of a
+   * class <i>C</i> is a superinterface of itself.
+   *
+   * 8.1 Superinterfaces: It is a compile-time error if an interface is a
    * superinterface of itself.
    *
-   * 8.1 Superinterfaces: It is a compile-time error if an interface is a superinterface of itself.
-   *
-   * 7.9 Superclasses: It is a compile-time error if a class <i>C</i> is a superclass of itself.
+   * 7.9 Superclasses: It is a compile-time error if a class <i>C</i> is a
+   * superclass of itself.
    *
    * @param className the name of the class that implements itself recursively
    */
-  static const CompileTimeErrorCode RECURSIVE_INTERFACE_INHERITANCE_BASE_CASE_EXTENDS = const CompileTimeErrorCode.con1('RECURSIVE_INTERFACE_INHERITANCE_BASE_CASE_EXTENDS', 139, "'{0}' cannot extend itself");
-
-  /**
-   * 7.10 Superinterfaces: It is a compile-time error if the interface of a class <i>C</i> is a
+  static const CompileTimeErrorCode RECURSIVE_INTERFACE_INHERITANCE_BASE_CASE_EXTENDS = const CompileTimeErrorCode('RECURSIVE_INTERFACE_INHERITANCE_BASE_CASE_EXTENDS', "'{0}' cannot extend itself");
+
+  /**
+   * 7.10 Superinterfaces: It is a compile-time error if the interface of a
+   * class <i>C</i> is a superinterface of itself.
+   *
+   * 8.1 Superinterfaces: It is a compile-time error if an interface is a
    * superinterface of itself.
    *
-   * 8.1 Superinterfaces: It is a compile-time error if an interface is a superinterface of itself.
-   *
-   * 7.9 Superclasses: It is a compile-time error if a class <i>C</i> is a superclass of itself.
+   * 7.9 Superclasses: It is a compile-time error if a class <i>C</i> is a
+   * superclass of itself.
    *
    * @param className the name of the class that implements itself recursively
    */
-  static const CompileTimeErrorCode RECURSIVE_INTERFACE_INHERITANCE_BASE_CASE_IMPLEMENTS = const CompileTimeErrorCode.con1('RECURSIVE_INTERFACE_INHERITANCE_BASE_CASE_IMPLEMENTS', 140, "'{0}' cannot implement itself");
-
-  /**
-   * 7.10 Superinterfaces: It is a compile-time error if the interface of a class <i>C</i> is a
+  static const CompileTimeErrorCode RECURSIVE_INTERFACE_INHERITANCE_BASE_CASE_IMPLEMENTS = const CompileTimeErrorCode('RECURSIVE_INTERFACE_INHERITANCE_BASE_CASE_IMPLEMENTS', "'{0}' cannot implement itself");
+
+  /**
+   * 7.10 Superinterfaces: It is a compile-time error if the interface of a
+   * class <i>C</i> is a superinterface of itself.
+   *
+   * 8.1 Superinterfaces: It is a compile-time error if an interface is a
    * superinterface of itself.
    *
-   * 8.1 Superinterfaces: It is a compile-time error if an interface is a superinterface of itself.
-   *
-   * 7.9 Superclasses: It is a compile-time error if a class <i>C</i> is a superclass of itself.
+   * 7.9 Superclasses: It is a compile-time error if a class <i>C</i> is a
+   * superclass of itself.
    *
    * @param className the name of the class that implements itself recursively
    */
-  static const CompileTimeErrorCode RECURSIVE_INTERFACE_INHERITANCE_BASE_CASE_WITH = const CompileTimeErrorCode.con1('RECURSIVE_INTERFACE_INHERITANCE_BASE_CASE_WITH', 141, "'{0}' cannot use itself as a mixin");
-
-  /**
-   * 7.6.2 Factories: It is a compile-time error if <i>k</i> is prefixed with the const modifier but
-   * <i>k'</i> is not a constant constructor.
-   */
-  static const CompileTimeErrorCode REDIRECT_TO_MISSING_CONSTRUCTOR = const CompileTimeErrorCode.con1('REDIRECT_TO_MISSING_CONSTRUCTOR', 142, "The constructor '{0}' could not be found in '{1}'");
-
-  /**
-   * 7.6.2 Factories: It is a compile-time error if <i>k</i> is prefixed with the const modifier but
-   * <i>k'</i> is not a constant constructor.
-   */
-  static const CompileTimeErrorCode REDIRECT_TO_NON_CLASS = const CompileTimeErrorCode.con1('REDIRECT_TO_NON_CLASS', 143, "The name '{0}' is not a type and cannot be used in a redirected constructor");
-
-  /**
-   * 7.6.2 Factories: It is a compile-time error if <i>k</i> is prefixed with the const modifier but
-   * <i>k'</i> is not a constant constructor.
-   */
-  static const CompileTimeErrorCode REDIRECT_TO_NON_CONST_CONSTRUCTOR = const CompileTimeErrorCode.con1('REDIRECT_TO_NON_CONST_CONSTRUCTOR', 144, "Constant factory constructor cannot delegate to a non-constant constructor");
-
-  /**
-   * 7.6.1 Generative constructors: A generative constructor may be <i>redirecting</i>, in which
-   * case its only action is to invoke another generative constructor.
-   */
-  static const CompileTimeErrorCode REDIRECT_GENERATIVE_TO_MISSING_CONSTRUCTOR = const CompileTimeErrorCode.con1('REDIRECT_GENERATIVE_TO_MISSING_CONSTRUCTOR', 145, "The constructor '{0}' could not be found in '{1}'");
-
-  /**
-   * 7.6.1 Generative constructors: A generative constructor may be <i>redirecting</i>, in which
-   * case its only action is to invoke another generative constructor.
-   */
-  static const CompileTimeErrorCode REDIRECT_GENERATIVE_TO_NON_GENERATIVE_CONSTRUCTOR = const CompileTimeErrorCode.con1('REDIRECT_GENERATIVE_TO_NON_GENERATIVE_CONSTRUCTOR', 146, "Generative constructor cannot redirect to a factory constructor");
-
-  /**
-   * 5 Variables: A local variable may only be referenced at a source code location that is after
-   * its initializer, if any, is complete, or a compile-time error occurs.
-   */
-  static const CompileTimeErrorCode REFERENCED_BEFORE_DECLARATION = const CompileTimeErrorCode.con1('REFERENCED_BEFORE_DECLARATION', 147, "Local variables cannot be referenced before they are declared");
-
-  /**
-   * 12.8.1 Rethrow: It is a compile-time error if an expression of the form <i>rethrow;</i> is not
-   * enclosed within a on-catch clause.
-   */
-  static const CompileTimeErrorCode RETHROW_OUTSIDE_CATCH = const CompileTimeErrorCode.con1('RETHROW_OUTSIDE_CATCH', 148, "rethrow must be inside of a catch clause");
-
-  /**
-   * 13.12 Return: It is a compile-time error if a return statement of the form <i>return e;</i>
-   * appears in a generative constructor.
-   */
-  static const CompileTimeErrorCode RETURN_IN_GENERATIVE_CONSTRUCTOR = const CompileTimeErrorCode.con1('RETURN_IN_GENERATIVE_CONSTRUCTOR', 149, "Constructors cannot return a value");
-
-  /**
-   * 13.12 Return: It is a compile-time error if a return statement of the form <i>return e;</i>
-   * appears in a generator function.
-   */
-  static const CompileTimeErrorCode RETURN_IN_GENERATOR = const CompileTimeErrorCode.con1('RETURN_IN_GENERATOR', 150, "Cannot return a value from a generator function (one marked with either 'async*' or 'sync*')");
-
-  /**
-   * 14.1 Imports: It is a compile-time error if a prefix used in a deferred import is used in
-   * another import clause.
-   */
-  static const CompileTimeErrorCode SHARED_DEFERRED_PREFIX = const CompileTimeErrorCode.con1('SHARED_DEFERRED_PREFIX', 151, "The prefix of a deferred import cannot be used in other import directives");
+  static const CompileTimeErrorCode RECURSIVE_INTERFACE_INHERITANCE_BASE_CASE_WITH = const CompileTimeErrorCode('RECURSIVE_INTERFACE_INHERITANCE_BASE_CASE_WITH', "'{0}' cannot use itself as a mixin");
+
+  /**
+   * 7.6.2 Factories: It is a compile-time error if <i>k</i> is prefixed with
+   * the const modifier but <i>k'</i> is not a constant constructor.
+   */
+  static const CompileTimeErrorCode REDIRECT_TO_MISSING_CONSTRUCTOR = const CompileTimeErrorCode('REDIRECT_TO_MISSING_CONSTRUCTOR', "The constructor '{0}' could not be found in '{1}'");
+
+  /**
+   * 7.6.2 Factories: It is a compile-time error if <i>k</i> is prefixed with
+   * the const modifier but <i>k'</i> is not a constant constructor.
+   */
+  static const CompileTimeErrorCode REDIRECT_TO_NON_CLASS = const CompileTimeErrorCode('REDIRECT_TO_NON_CLASS', "The name '{0}' is not a type and cannot be used in a redirected constructor");
+
+  /**
+   * 7.6.2 Factories: It is a compile-time error if <i>k</i> is prefixed with
+   * the const modifier but <i>k'</i> is not a constant constructor.
+   */
+  static const CompileTimeErrorCode REDIRECT_TO_NON_CONST_CONSTRUCTOR = const CompileTimeErrorCode('REDIRECT_TO_NON_CONST_CONSTRUCTOR', "Constant factory constructor cannot delegate to a non-constant constructor");
+
+  /**
+   * 7.6.1 Generative constructors: A generative constructor may be
+   * <i>redirecting</i>, in which case its only action is to invoke another
+   * generative constructor.
+   */
+  static const CompileTimeErrorCode REDIRECT_GENERATIVE_TO_MISSING_CONSTRUCTOR = const CompileTimeErrorCode('REDIRECT_GENERATIVE_TO_MISSING_CONSTRUCTOR', "The constructor '{0}' could not be found in '{1}'");
+
+  /**
+   * 7.6.1 Generative constructors: A generative constructor may be
+   * <i>redirecting</i>, in which case its only action is to invoke another
+   * generative constructor.
+   */
+  static const CompileTimeErrorCode REDIRECT_GENERATIVE_TO_NON_GENERATIVE_CONSTRUCTOR = const CompileTimeErrorCode('REDIRECT_GENERATIVE_TO_NON_GENERATIVE_CONSTRUCTOR', "Generative constructor cannot redirect to a factory constructor");
+
+  /**
+   * 5 Variables: A local variable may only be referenced at a source code
+   * location that is after its initializer, if any, is complete, or a
+   * compile-time error occurs.
+   */
+  static const CompileTimeErrorCode REFERENCED_BEFORE_DECLARATION = const CompileTimeErrorCode('REFERENCED_BEFORE_DECLARATION', "Local variables cannot be referenced before they are declared");
+
+  /**
+   * 12.8.1 Rethrow: It is a compile-time error if an expression of the form
+   * <i>rethrow;</i> is not enclosed within a on-catch clause.
+   */
+  static const CompileTimeErrorCode RETHROW_OUTSIDE_CATCH = const CompileTimeErrorCode('RETHROW_OUTSIDE_CATCH', "rethrow must be inside of a catch clause");
+
+  /**
+   * 13.12 Return: It is a compile-time error if a return statement of the form
+   * <i>return e;</i> appears in a generative constructor.
+   */
+  static const CompileTimeErrorCode RETURN_IN_GENERATIVE_CONSTRUCTOR = const CompileTimeErrorCode('RETURN_IN_GENERATIVE_CONSTRUCTOR', "Constructors cannot return a value");
+
+  /**
+   * 13.12 Return: It is a compile-time error if a return statement of the form
+   * <i>return e;</i> appears in a generator function.
+   */
+  static const CompileTimeErrorCode RETURN_IN_GENERATOR = const CompileTimeErrorCode('RETURN_IN_GENERATOR', "Cannot return a value from a generator function (one marked with either 'async*' or 'sync*')");
+
+  /**
+   * 14.1 Imports: It is a compile-time error if a prefix used in a deferred
+   * import is used in another import clause.
+   */
+  static const CompileTimeErrorCode SHARED_DEFERRED_PREFIX = const CompileTimeErrorCode('SHARED_DEFERRED_PREFIX', "The prefix of a deferred import cannot be used in other import directives");
 
   /**
    * 12.15.4 Super Invocation: A super method invocation <i>i</i> has the form
-   * <i>super.m(a<sub>1</sub>, &hellip;, a<sub>n</sub>, x<sub>n+1</sub>: a<sub>n+1</sub>, &hellip;
-   * x<sub>n+k</sub>: a<sub>n+k</sub>)</i>. It is a compile-time error if a super method invocation
-   * occurs in a top-level function or variable initializer, in an instance variable initializer or
-   * initializer list, in class Object, in a factory constructor, or in a static method or variable
-   * initializer.
-   */
-  static const CompileTimeErrorCode SUPER_IN_INVALID_CONTEXT = const CompileTimeErrorCode.con1('SUPER_IN_INVALID_CONTEXT', 152, "Invalid context for 'super' invocation");
-
-  /**
-   * 7.6.1 Generative Constructors: A generative constructor may be redirecting, in which case its
-   * only action is to invoke another generative constructor.
-   */
-  static const CompileTimeErrorCode SUPER_IN_REDIRECTING_CONSTRUCTOR = const CompileTimeErrorCode.con1('SUPER_IN_REDIRECTING_CONSTRUCTOR', 153, "The redirecting constructor cannot have a 'super' initializer");
-
-  /**
-   * 7.6.1 Generative Constructors: Let <i>k</i> be a generative constructor. It is a compile-time
-   * error if a generative constructor of class Object includes a superinitializer.
-   */
-  static const CompileTimeErrorCode SUPER_INITIALIZER_IN_OBJECT = const CompileTimeErrorCode.con1('SUPER_INITIALIZER_IN_OBJECT', 154, "");
-
-  /**
-   * 12.11 Instance Creation: It is a static type warning if any of the type arguments to a
-   * constructor of a generic type <i>G</i> invoked by a new expression or a constant object
-   * expression are not subtypes of the bounds of the corresponding formal type parameters of
-   * <i>G</i>.
-   *
-   * 12.11.1 New: If T is malformed a dynamic error occurs. In checked mode, if T is mal-bounded a
-   * dynamic error occurs.
-   *
-   * 12.1 Constants: It is a compile-time error if evaluation of a compile-time constant would raise
-   * an exception.
-   *
-   * @param boundedTypeName the name of the type used in the instance creation that should be
-   *          limited by the bound as specified in the class declaration
+   * <i>super.m(a<sub>1</sub>, &hellip;, a<sub>n</sub>, x<sub>n+1</sub>:
+   * a<sub>n+1</sub>, &hellip; x<sub>n+k</sub>: a<sub>n+k</sub>)</i>. It is a
+   * compile-time error if a super method invocation occurs in a top-level
+   * function or variable initializer, in an instance variable initializer or
+   * initializer list, in class Object, in a factory constructor, or in a static
+   * method or variable initializer.
+   */
+  static const CompileTimeErrorCode SUPER_IN_INVALID_CONTEXT = const CompileTimeErrorCode('SUPER_IN_INVALID_CONTEXT', "Invalid context for 'super' invocation");
+
+  /**
+   * 7.6.1 Generative Constructors: A generative constructor may be redirecting,
+   * in which case its only action is to invoke another generative constructor.
+   */
+  static const CompileTimeErrorCode SUPER_IN_REDIRECTING_CONSTRUCTOR = const CompileTimeErrorCode('SUPER_IN_REDIRECTING_CONSTRUCTOR', "The redirecting constructor cannot have a 'super' initializer");
+
+  /**
+   * 7.6.1 Generative Constructors: Let <i>k</i> be a generative constructor. It
+   * is a compile-time error if a generative constructor of class Object
+   * includes a superinitializer.
+   */
+  static const CompileTimeErrorCode SUPER_INITIALIZER_IN_OBJECT = const CompileTimeErrorCode('SUPER_INITIALIZER_IN_OBJECT', "");
+
+  /**
+   * 12.11 Instance Creation: It is a static type warning if any of the type
+   * arguments to a constructor of a generic type <i>G</i> invoked by a new
+   * expression or a constant object expression are not subtypes of the bounds
+   * of the corresponding formal type parameters of <i>G</i>.
+   *
+   * 12.11.1 New: If T is malformed a dynamic error occurs. In checked mode, if
+   * T is mal-bounded a dynamic error occurs.
+   *
+   * 12.1 Constants: It is a compile-time error if evaluation of a compile-time
+   * constant would raise an exception.
+   *
+   * @param boundedTypeName the name of the type used in the instance creation
+   *        that should be limited by the bound as specified in the class
+   *        declaration
    * @param boundingTypeName the name of the bounding type
-   * @see StaticTypeWarningCode#TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-   */
-  static const CompileTimeErrorCode TYPE_ARGUMENT_NOT_MATCHING_BOUNDS = const CompileTimeErrorCode.con1('TYPE_ARGUMENT_NOT_MATCHING_BOUNDS', 155, "'{0}' does not extend '{1}'");
-
-  /**
-   * 15.3.1 Typedef: Any self reference, either directly, or recursively via another typedef, is a
-   * compile time error.
-   */
-  static const CompileTimeErrorCode TYPE_ALIAS_CANNOT_REFERENCE_ITSELF = const CompileTimeErrorCode.con1('TYPE_ALIAS_CANNOT_REFERENCE_ITSELF', 156, "Type alias cannot reference itself directly or recursively via another typedef");
-
-  /**
-   * 12.11.2 Const: It is a compile-time error if <i>T</i> is not a class accessible in the current
-   * scope, optionally followed by type arguments.
-   */
-  static const CompileTimeErrorCode UNDEFINED_CLASS = const CompileTimeErrorCode.con1('UNDEFINED_CLASS', 157, "Undefined class '{0}'");
-
-  /**
-   * 7.6.1 Generative Constructors: Let <i>C</i> be the class in which the superinitializer appears
-   * and let <i>S</i> be the superclass of <i>C</i>. Let <i>k</i> be a generative constructor. It is
-   * a compile-time error if class <i>S</i> does not declare a generative constructor named <i>S</i>
+   * @see [StaticTypeWarningCode.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS]
+   */
+  static const CompileTimeErrorCode TYPE_ARGUMENT_NOT_MATCHING_BOUNDS = const CompileTimeErrorCode('TYPE_ARGUMENT_NOT_MATCHING_BOUNDS', "'{0}' does not extend '{1}'");
+
+  /**
+   * 15.3.1 Typedef: Any self reference, either directly, or recursively via
+   * another typedef, is a compile time error.
+   */
+  static const CompileTimeErrorCode TYPE_ALIAS_CANNOT_REFERENCE_ITSELF = const CompileTimeErrorCode('TYPE_ALIAS_CANNOT_REFERENCE_ITSELF', "Type alias cannot reference itself directly or recursively via another typedef");
+
+  /**
+   * 12.11.2 Const: It is a compile-time error if <i>T</i> is not a class
+   * accessible in the current scope, optionally followed by type arguments.
+   */
+  static const CompileTimeErrorCode UNDEFINED_CLASS = const CompileTimeErrorCode('UNDEFINED_CLASS', "Undefined class '{0}'");
+
+  /**
+   * 7.6.1 Generative Constructors: Let <i>C</i> be the class in which the
+   * superinitializer appears and let <i>S</i> be the superclass of <i>C</i>.
+   * Let <i>k</i> be a generative constructor. It is a compile-time error if
+   * class <i>S</i> does not declare a generative constructor named <i>S</i>
    * (respectively <i>S.id</i>)
    */
-  static const CompileTimeErrorCode UNDEFINED_CONSTRUCTOR_IN_INITIALIZER = const CompileTimeErrorCode.con1('UNDEFINED_CONSTRUCTOR_IN_INITIALIZER', 158, "The class '{0}' does not have a generative constructor '{1}'");
-
-  /**
-   * 7.6.1 Generative Constructors: Let <i>C</i> be the class in which the superinitializer appears
-   * and let <i>S</i> be the superclass of <i>C</i>. Let <i>k</i> be a generative constructor. It is
-   * a compile-time error if class <i>S</i> does not declare a generative constructor named <i>S</i>
+  static const CompileTimeErrorCode UNDEFINED_CONSTRUCTOR_IN_INITIALIZER = const CompileTimeErrorCode('UNDEFINED_CONSTRUCTOR_IN_INITIALIZER', "The class '{0}' does not have a generative constructor '{1}'");
+
+  /**
+   * 7.6.1 Generative Constructors: Let <i>C</i> be the class in which the
+   * superinitializer appears and let <i>S</i> be the superclass of <i>C</i>.
+   * Let <i>k</i> be a generative constructor. It is a compile-time error if
+   * class <i>S</i> does not declare a generative constructor named <i>S</i>
    * (respectively <i>S.id</i>)
    */
-  static const CompileTimeErrorCode UNDEFINED_CONSTRUCTOR_IN_INITIALIZER_DEFAULT = const CompileTimeErrorCode.con1('UNDEFINED_CONSTRUCTOR_IN_INITIALIZER_DEFAULT', 159, "The class '{0}' does not have a default generative constructor");
-
-  /**
-   * 12.14.2 Binding Actuals to Formals: Furthermore, each <i>q<sub>i</sub></i>, <i>1<=i<=l</i>,
-   * must have a corresponding named parameter in the set {<i>p<sub>n+1</sub></i> ...
-   * <i>p<sub>n+k</sub></i>} or a static warning occurs.
-   *
-   * 12.11.2 Const: It is a compile-time error if evaluation of a constant object results in an
-   * uncaught exception being thrown.
+  static const CompileTimeErrorCode UNDEFINED_CONSTRUCTOR_IN_INITIALIZER_DEFAULT = const CompileTimeErrorCode('UNDEFINED_CONSTRUCTOR_IN_INITIALIZER_DEFAULT', "The class '{0}' does not have a default generative constructor");
+
+  /**
+   * 12.14.2 Binding Actuals to Formals: Furthermore, each <i>q<sub>i</sub></i>,
+   * <i>1<=i<=l</i>, must have a corresponding named parameter in the set
+   * {<i>p<sub>n+1</sub></i> ... <i>p<sub>n+k</sub></i>} or a static warning
+   * occurs.
+   *
+   * 12.11.2 Const: It is a compile-time error if evaluation of a constant
+   * object results in an uncaught exception being thrown.
    *
    * @param name the name of the requested named parameter
    */
-  static const CompileTimeErrorCode UNDEFINED_NAMED_PARAMETER = const CompileTimeErrorCode.con1('UNDEFINED_NAMED_PARAMETER', 160, "The named parameter '{0}' is not defined");
-
-  /**
-   * 14.2 Exports: It is a compile-time error if the compilation unit found at the specified URI is
-   * not a library declaration.
-   *
-   * 14.1 Imports: It is a compile-time error if the compilation unit found at the specified URI is
-   * not a library declaration.
-   *
-   * 14.3 Parts: It is a compile time error if the contents of the URI are not a valid part
-   * declaration.
+  static const CompileTimeErrorCode UNDEFINED_NAMED_PARAMETER = const CompileTimeErrorCode('UNDEFINED_NAMED_PARAMETER', "The named parameter '{0}' is not defined");
+
+  /**
+   * 14.2 Exports: It is a compile-time error if the compilation unit found at
+   * the specified URI is not a library declaration.
+   *
+   * 14.1 Imports: It is a compile-time error if the compilation unit found at
+   * the specified URI is not a library declaration.
+   *
+   * 14.3 Parts: It is a compile time error if the contents of the URI are not a
+   * valid part declaration.
    *
    * @param uri the URI pointing to a non-existent file
-   * @see #INVALID_URI
-   */
-  static const CompileTimeErrorCode URI_DOES_NOT_EXIST = const CompileTimeErrorCode.con1('URI_DOES_NOT_EXIST', 161, "Target of URI does not exist: '{0}'");
-
-  /**
-   * 14.1 Imports: It is a compile-time error if <i>x</i> is not a compile-time constant, or if
-   * <i>x</i> involves string interpolation.
-   *
-   * 14.3 Parts: It is a compile-time error if <i>s</i> is not a compile-time constant, or if
-   * <i>s</i> involves string interpolation.
-   *
-   * 14.5 URIs: It is a compile-time error if the string literal <i>x</i> that describes a URI is
-   * not a compile-time constant, or if <i>x</i> involves string interpolation.
-   */
-  static const CompileTimeErrorCode URI_WITH_INTERPOLATION = const CompileTimeErrorCode.con1('URI_WITH_INTERPOLATION', 162, "URIs cannot use string interpolation");
-
-  /**
-   * 7.1.1 Operators: It is a compile-time error if the arity of the user-declared operator []= is
-   * not 2. It is a compile time error if the arity of a user-declared operator with one of the
-   * names: &lt;, &gt;, &lt;=, &gt;=, ==, +, /, ~/, *, %, |, ^, &, &lt;&lt;, &gt;&gt;, [] is not 1.
-   * It is a compile time error if the arity of the user-declared operator - is not 0 or 1. It is a
-   * compile time error if the arity of the user-declared operator ~ is not 0.
+   * @see [INVALID_URI]
+   */
+  static const CompileTimeErrorCode URI_DOES_NOT_EXIST = const CompileTimeErrorCode('URI_DOES_NOT_EXIST', "Target of URI does not exist: '{0}'");
+
+  /**
+   * 14.1 Imports: It is a compile-time error if <i>x</i> is not a compile-time
+   * constant, or if <i>x</i> involves string interpolation.
+   *
+   * 14.3 Parts: It is a compile-time error if <i>s</i> is not a compile-time
+   * constant, or if <i>s</i> involves string interpolation.
+   *
+   * 14.5 URIs: It is a compile-time error if the string literal <i>x</i> that
+   * describes a URI is not a compile-time constant, or if <i>x</i> involves
+   * string interpolation.
+   */
+  static const CompileTimeErrorCode URI_WITH_INTERPOLATION = const CompileTimeErrorCode('URI_WITH_INTERPOLATION', "URIs cannot use string interpolation");
+
+  /**
+   * 7.1.1 Operators: It is a compile-time error if the arity of the
+   * user-declared operator []= is not 2. It is a compile time error if the
+   * arity of a user-declared operator with one of the names: &lt;, &gt;, &lt;=,
+   * &gt;=, ==, +, /, ~/, *, %, |, ^, &, &lt;&lt;, &gt;&gt;, [] is not 1. It is
+   * a compile time error if the arity of the user-declared operator - is not 0
+   * or 1. It is a compile time error if the arity of the user-declared operator
+   * ~ is not 0.
    *
    * @param operatorName the name of the declared operator
    * @param expectedNumberOfParameters the number of parameters expected
-   * @param actualNumberOfParameters the number of parameters found in the operator declaration
-   */
-  static const CompileTimeErrorCode WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR = const CompileTimeErrorCode.con1('WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR', 163, "Operator '{0}' should declare exactly {1} parameter(s), but {2} found");
-
-  /**
-   * 7.1.1 Operators: It is a compile time error if the arity of the user-declared operator - is not
-   * 0 or 1.
-   *
-   * @param actualNumberOfParameters the number of parameters found in the operator declaration
-   */
-  static const CompileTimeErrorCode WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR_MINUS = const CompileTimeErrorCode.con1('WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR_MINUS', 164, "Operator '-' should declare 0 or 1 parameter, but {0} found");
-
-  /**
-   * 7.3 Setters: It is a compile-time error if a setter's formal parameter list does not include
-   * exactly one required formal parameter <i>p</i>.
-   */
-  static const CompileTimeErrorCode WRONG_NUMBER_OF_PARAMETERS_FOR_SETTER = const CompileTimeErrorCode.con1('WRONG_NUMBER_OF_PARAMETERS_FOR_SETTER', 165, "Setters should declare exactly one required parameter");
-
-  /**
-   * ?? Yield: It is a compile-time error if a yield statement appears in a function that is not a
-   * generator function.
-   */
-  static const CompileTimeErrorCode YIELD_EACH_IN_NON_GENERATOR = const CompileTimeErrorCode.con1('YIELD_EACH_IN_NON_GENERATOR', 166, "Yield-each statements must be in a generator function (one marked with either 'async*' or 'sync*')");
-
-  /**
-   * ?? Yield: It is a compile-time error if a yield statement appears in a function that is not a
-   * generator function.
-   */
-  static const CompileTimeErrorCode YIELD_IN_NON_GENERATOR = const CompileTimeErrorCode.con1('YIELD_IN_NON_GENERATOR', 167, "Yield statements must be in a generator function (one marked with either 'async*' or 'sync*')");
-
-  static const List<CompileTimeErrorCode> values = const [
-      ACCESS_PRIVATE_ENUM_FIELD,
-      AMBIGUOUS_EXPORT,
-      ARGUMENT_DEFINITION_TEST_NON_PARAMETER,
-      ASYNC_FOR_IN_WRONG_CONTEXT,
-      AWAIT_IN_WRONG_CONTEXT,
-      BUILT_IN_IDENTIFIER_AS_TYPE,
-      BUILT_IN_IDENTIFIER_AS_TYPE_NAME,
-      BUILT_IN_IDENTIFIER_AS_TYPEDEF_NAME,
-      BUILT_IN_IDENTIFIER_AS_TYPE_PARAMETER_NAME,
-      CASE_EXPRESSION_TYPE_IMPLEMENTS_EQUALS,
-      COMPILE_TIME_CONSTANT_RAISES_EXCEPTION,
-      CONFLICTING_GETTER_AND_METHOD,
-      CONFLICTING_METHOD_AND_GETTER,
-      CONFLICTING_CONSTRUCTOR_NAME_AND_FIELD,
-      CONFLICTING_CONSTRUCTOR_NAME_AND_METHOD,
-      CONFLICTING_TYPE_VARIABLE_AND_CLASS,
-      CONFLICTING_TYPE_VARIABLE_AND_MEMBER,
-      CONST_CONSTRUCTOR_THROWS_EXCEPTION,
-      CONST_CONSTRUCTOR_WITH_FIELD_INITIALIZED_BY_NON_CONST,
-      CONST_CONSTRUCTOR_WITH_MIXIN,
-      CONST_CONSTRUCTOR_WITH_NON_CONST_SUPER,
-      CONST_CONSTRUCTOR_WITH_NON_FINAL_FIELD,
-      CONST_DEFERRED_CLASS,
-      CONST_FORMAL_PARAMETER,
-      CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE,
-      CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE_FROM_DEFERRED_LIBRARY,
-      CONST_INSTANCE_FIELD,
-      CONST_MAP_KEY_EXPRESSION_TYPE_IMPLEMENTS_EQUALS,
-      CONST_NOT_INITIALIZED,
-      CONST_EVAL_TYPE_BOOL,
-      CONST_EVAL_TYPE_BOOL_NUM_STRING,
-      CONST_EVAL_TYPE_INT,
-      CONST_EVAL_TYPE_NUM,
-      CONST_EVAL_THROWS_EXCEPTION,
-      CONST_EVAL_THROWS_IDBZE,
-      CONST_WITH_INVALID_TYPE_PARAMETERS,
-      CONST_WITH_NON_CONST,
-      CONST_WITH_NON_CONSTANT_ARGUMENT,
-      CONST_WITH_NON_TYPE,
-      CONST_WITH_TYPE_PARAMETERS,
-      CONST_WITH_UNDEFINED_CONSTRUCTOR,
-      CONST_WITH_UNDEFINED_CONSTRUCTOR_DEFAULT,
-      DEFAULT_VALUE_IN_FUNCTION_TYPE_ALIAS,
-      DEFAULT_VALUE_IN_FUNCTION_TYPED_PARAMETER,
-      DEFAULT_VALUE_IN_REDIRECTING_FACTORY_CONSTRUCTOR,
-      DUPLICATE_CONSTRUCTOR_DEFAULT,
-      DUPLICATE_CONSTRUCTOR_NAME,
-      DUPLICATE_DEFINITION,
-      DUPLICATE_DEFINITION_INHERITANCE,
-      DUPLICATE_NAMED_ARGUMENT,
-      EXPORT_INTERNAL_LIBRARY,
-      EXPORT_OF_NON_LIBRARY,
-      EXTENDS_ENUM,
-      EXTENDS_NON_CLASS,
-      EXTENDS_DISALLOWED_CLASS,
-      EXTENDS_DEFERRED_CLASS,
-      EXTRA_POSITIONAL_ARGUMENTS,
-      FIELD_INITIALIZED_BY_MULTIPLE_INITIALIZERS,
-      FIELD_INITIALIZED_IN_PARAMETER_AND_INITIALIZER,
-      FINAL_INITIALIZED_MULTIPLE_TIMES,
-      FIELD_INITIALIZER_FACTORY_CONSTRUCTOR,
-      FIELD_INITIALIZER_OUTSIDE_CONSTRUCTOR,
-      FIELD_INITIALIZER_REDIRECTING_CONSTRUCTOR,
-      GETTER_AND_METHOD_WITH_SAME_NAME,
-      IMPLEMENTS_DEFERRED_CLASS,
-      IMPLEMENTS_DISALLOWED_CLASS,
-      IMPLEMENTS_DYNAMIC,
-      IMPLEMENTS_ENUM,
-      IMPLEMENTS_NON_CLASS,
-      IMPLEMENTS_REPEATED,
-      IMPLEMENTS_SUPER_CLASS,
-      IMPLICIT_THIS_REFERENCE_IN_INITIALIZER,
-      IMPORT_INTERNAL_LIBRARY,
-      IMPORT_OF_NON_LIBRARY,
-      INCONSISTENT_CASE_EXPRESSION_TYPES,
-      INITIALIZER_FOR_NON_EXISTENT_FIELD,
-      INITIALIZER_FOR_STATIC_FIELD,
-      INITIALIZING_FORMAL_FOR_NON_EXISTENT_FIELD,
-      INITIALIZING_FORMAL_FOR_STATIC_FIELD,
-      INSTANCE_MEMBER_ACCESS_FROM_FACTORY,
-      INSTANCE_MEMBER_ACCESS_FROM_STATIC,
-      INSTANTIATE_ENUM,
-      INVALID_ANNOTATION,
-      INVALID_ANNOTATION_FROM_DEFERRED_LIBRARY,
-      INVALID_IDENTIFIER_IN_ASYNC,
-      INVALID_MODIFIER_ON_CONSTRUCTOR,
-      INVALID_MODIFIER_ON_SETTER,
-      INVALID_CONSTANT,
-      INVALID_CONSTRUCTOR_NAME,
-      INVALID_FACTORY_NAME_NOT_A_CLASS,
-      INVALID_REFERENCE_TO_THIS,
-      INVALID_TYPE_ARGUMENT_IN_CONST_LIST,
-      INVALID_TYPE_ARGUMENT_IN_CONST_MAP,
-      INVALID_URI,
-      LABEL_IN_OUTER_SCOPE,
-      LABEL_UNDEFINED,
-      MEMBER_WITH_CLASS_NAME,
-      METHOD_AND_GETTER_WITH_SAME_NAME,
-      MISSING_CONST_IN_LIST_LITERAL,
-      MISSING_CONST_IN_MAP_LITERAL,
-      MISSING_ENUM_CONSTANT_IN_SWITCH,
-      MIXIN_DECLARES_CONSTRUCTOR,
-      MIXIN_DEFERRED_CLASS,
-      MIXIN_INHERITS_FROM_NOT_OBJECT,
-      MIXIN_OF_DISALLOWED_CLASS,
-      MIXIN_OF_ENUM,
-      MIXIN_OF_NON_CLASS,
-      MIXIN_REFERENCES_SUPER,
-      MIXIN_WITH_NON_CLASS_SUPERCLASS,
-      MULTIPLE_REDIRECTING_CONSTRUCTOR_INVOCATIONS,
-      MULTIPLE_SUPER_INITIALIZERS,
-      NO_ANNOTATION_CONSTRUCTOR_ARGUMENTS,
-      NO_DEFAULT_SUPER_CONSTRUCTOR_EXPLICIT,
-      NO_DEFAULT_SUPER_CONSTRUCTOR_IMPLICIT,
-      NON_CONST_MAP_AS_EXPRESSION_STATEMENT,
-      NON_CONSTANT_CASE_EXPRESSION,
-      NON_CONSTANT_CASE_EXPRESSION_FROM_DEFERRED_LIBRARY,
-      NON_CONSTANT_DEFAULT_VALUE,
-      NON_CONSTANT_DEFAULT_VALUE_FROM_DEFERRED_LIBRARY,
-      NON_CONSTANT_LIST_ELEMENT,
-      NON_CONSTANT_LIST_ELEMENT_FROM_DEFERRED_LIBRARY,
-      NON_CONSTANT_MAP_KEY,
-      NON_CONSTANT_MAP_KEY_FROM_DEFERRED_LIBRARY,
-      NON_CONSTANT_MAP_VALUE,
-      NON_CONSTANT_MAP_VALUE_FROM_DEFERRED_LIBRARY,
-      NON_CONSTANT_ANNOTATION_CONSTRUCTOR,
-      NON_CONSTANT_VALUE_IN_INITIALIZER,
-      NON_CONSTANT_VALUE_IN_INITIALIZER_FROM_DEFERRED_LIBRARY,
-      NOT_ENOUGH_REQUIRED_ARGUMENTS,
-      NON_GENERATIVE_CONSTRUCTOR,
-      OBJECT_CANNOT_EXTEND_ANOTHER_CLASS,
-      OPTIONAL_PARAMETER_IN_OPERATOR,
-      PART_OF_NON_PART,
-      PREFIX_COLLIDES_WITH_TOP_LEVEL_MEMBER,
-      PRIVATE_OPTIONAL_PARAMETER,
-      RECURSIVE_COMPILE_TIME_CONSTANT,
-      RECURSIVE_CONSTRUCTOR_REDIRECT,
-      RECURSIVE_FACTORY_REDIRECT,
-      RECURSIVE_INTERFACE_INHERITANCE,
-      RECURSIVE_INTERFACE_INHERITANCE_BASE_CASE_EXTENDS,
-      RECURSIVE_INTERFACE_INHERITANCE_BASE_CASE_IMPLEMENTS,
-      RECURSIVE_INTERFACE_INHERITANCE_BASE_CASE_WITH,
-      REDIRECT_TO_MISSING_CONSTRUCTOR,
-      REDIRECT_TO_NON_CLASS,
-      REDIRECT_TO_NON_CONST_CONSTRUCTOR,
-      REDIRECT_GENERATIVE_TO_MISSING_CONSTRUCTOR,
-      REDIRECT_GENERATIVE_TO_NON_GENERATIVE_CONSTRUCTOR,
-      REFERENCED_BEFORE_DECLARATION,
-      RETHROW_OUTSIDE_CATCH,
-      RETURN_IN_GENERATIVE_CONSTRUCTOR,
-      RETURN_IN_GENERATOR,
-      SHARED_DEFERRED_PREFIX,
-      SUPER_IN_INVALID_CONTEXT,
-      SUPER_IN_REDIRECTING_CONSTRUCTOR,
-      SUPER_INITIALIZER_IN_OBJECT,
-      TYPE_ARGUMENT_NOT_MATCHING_BOUNDS,
-      TYPE_ALIAS_CANNOT_REFERENCE_ITSELF,
-      UNDEFINED_CLASS,
-      UNDEFINED_CONSTRUCTOR_IN_INITIALIZER,
-      UNDEFINED_CONSTRUCTOR_IN_INITIALIZER_DEFAULT,
-      UNDEFINED_NAMED_PARAMETER,
-      URI_DOES_NOT_EXIST,
-      URI_WITH_INTERPOLATION,
-      WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR,
-      WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR_MINUS,
-      WRONG_NUMBER_OF_PARAMETERS_FOR_SETTER,
-      YIELD_EACH_IN_NON_GENERATOR,
-      YIELD_IN_NON_GENERATOR];
-
-  /**
-   * The template used to create the message to be displayed for this error.
-   */
-  final String message;
-
-  /**
-   * The template used to create the correction to be displayed for this error, or `null` if
-   * there is no correction information for this error.
-   */
-  final String correction;
-
-  /**
-   * Initialize a newly created error code to have the given message.
-   *
-   * @param message the message template used to create the message to be displayed for the error
-   */
-  const CompileTimeErrorCode.con1(String name, int ordinal, String message) : this.con2(name, ordinal, message, null);
-
-  /**
-   * Initialize a newly created error code to have the given message and correction.
-   *
-   * @param message the template used to create the message to be displayed for the error
-   * @param correction the template used to create the correction to be displayed for the error
-   */
-  const CompileTimeErrorCode.con2(String name, int ordinal, this.message, this.correction) : super(name, ordinal);
+   * @param actualNumberOfParameters the number of parameters found in the
+   *        operator declaration
+   */
+  static const CompileTimeErrorCode WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR = const CompileTimeErrorCode('WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR', "Operator '{0}' should declare exactly {1} parameter(s), but {2} found");
+
+  /**
+   * 7.1.1 Operators: It is a compile time error if the arity of the
+   * user-declared operator - is not 0 or 1.
+   *
+   * @param actualNumberOfParameters the number of parameters found in the
+   *        operator declaration
+   */
+  static const CompileTimeErrorCode WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR_MINUS = const CompileTimeErrorCode('WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR_MINUS', "Operator '-' should declare 0 or 1 parameter, but {0} found");
+
+  /**
+   * 7.3 Setters: It is a compile-time error if a setter's formal parameter list
+   * does not include exactly one required formal parameter <i>p</i>.
+   */
+  static const CompileTimeErrorCode WRONG_NUMBER_OF_PARAMETERS_FOR_SETTER = const CompileTimeErrorCode('WRONG_NUMBER_OF_PARAMETERS_FOR_SETTER', "Setters should declare exactly one required parameter");
+
+  /**
+   * ?? Yield: It is a compile-time error if a yield statement appears in a
+   * function that is not a generator function.
+   */
+  static const CompileTimeErrorCode YIELD_EACH_IN_NON_GENERATOR = const CompileTimeErrorCode('YIELD_EACH_IN_NON_GENERATOR', "Yield-each statements must be in a generator function (one marked with either 'async*' or 'sync*')");
+
+  /**
+   * ?? Yield: It is a compile-time error if a yield statement appears in a
+   * function that is not a generator function.
+   */
+  static const CompileTimeErrorCode YIELD_IN_NON_GENERATOR = const CompileTimeErrorCode('YIELD_IN_NON_GENERATOR', "Yield statements must be in a generator function (one marked with either 'async*' or 'sync*')");
+
+  /**
+   * Initialize a newly created error code to have the given [name]. The message
+   * associated with the error will be created from the given [message]
+   * template. The correction associated with the error will be created from the
+   * given [correction] template.
+   */
+  const CompileTimeErrorCode(String name, String message, [String correction]) : super(name, message, correction);
 
   @override
   ErrorSeverity get errorSeverity => ErrorType.COMPILE_TIME_ERROR.severity;
 
   @override
   ErrorType get type => ErrorType.COMPILE_TIME_ERROR;
-
-  @override
+}
+
+/**
+ * An `ErrorCode` represents an error code associated with an [AnalysisError].
+ *
+ * Generally, we want to provide messages that consist of three sentences. From
+ * the user's perspective these sentences should explain:
+ * 1. what is wrong,
+ * 2. why is it wrong, and
+ * 3. how do I fix it.
+ * However, we combine the first two in the [message] and the last in the
+ * [correction].
+ */
+abstract class ErrorCode {
+  /**
+   * The name of the error code.
+   */
+  final String name;
+
+  /**
+   * The template used to create the message to be displayed for this error. The
+   * message should indicate what is wrong and why it is wrong.
+   */
+  final String message;
+
+  /**
+   * The template used to create the correction to be displayed for this error,
+   * or `null` if there is no correction information for this error. The
+   * correction should indicate how the user can fix the error.
+   */
+  final String correction;
+
+  /**
+   * Initialize a newly created error code to have the given [name]. The message
+   * associated with the error will be created from the given [message]
+   * template. The correction associated with the error will be created from the
+   * given [correction] template.
+   */
+  const ErrorCode(this.name, this.message, [this.correction]);
+
+  /**
+   * The severity of the error.
+   */
+  ErrorSeverity get errorSeverity;
+
+  /**
+   * The type of the error.
+   */
+  ErrorType get type;
+
+  /**
+   * The unique name of this error code.
+   */
   String get uniqueName => "$runtimeType.$name";
 }
 
 /**
- * The interface `ErrorCode` defines the behavior common to objects representing error codes
- * associated with [AnalysisError].
- *
- * Generally, we want to provide messages that consist of three sentences: 1. what is wrong, 2. why
- * is it wrong, and 3. how do I fix it. However, we combine the first two in the result of
- * [getMessage] and the last in the result of [getCorrection].
- */
-abstract class ErrorCode {
-  /**
-   * Return the template used to create the correction to be displayed for this error, or
-   * `null` if there is no correction information for this error. The correction should
-   * indicate how the user can fix the error.
-   *
-   * @return the template used to create the correction to be displayed for this error
-   */
-  String get correction;
-
-  /**
-   * Return the severity of this error.
-   *
-   * @return the severity of this error
-   */
-  ErrorSeverity get errorSeverity;
-
-  /**
-   * Return the template used to create the message to be displayed for this error. The message
-   * should indicate what is wrong and why it is wrong.
-   *
-   * @return the template used to create the message to be displayed for this error
-   */
-  String get message;
-
-  /**
-   * Return the type of the error.
-   *
-   * @return the type of the error
-   */
-  ErrorType get type;
-
-  /**
-   * Return a unique name for this error code.
-   *
-   * @return a unique name for this error code
-   */
-  String get uniqueName;
-}
-
-/**
  * The enumeration `ErrorProperty` defines the properties that can be associated with an
  * [AnalysisError].
  */
 class ErrorProperty extends Enum<ErrorProperty> {
   /**
    * A property whose value is an array of [ExecutableElement] that should
    * be but are not implemented by a concrete class.
    */
   static const ErrorProperty UNIMPLEMENTED_METHODS = const ErrorProperty('UNIMPLEMENTED_METHODS', 0);
 
@@ skipping 317 matching lines @@
    * Initialize a newly created error type to have the given severity.
    *
    * @param severity the severity of this type of error
    */
   const ErrorType(String name, int ordinal, this.severity) : super(name, ordinal);
 
   String get displayName => name.toLowerCase().replaceAll('_', ' ');
 }
 
 /**
- * The enumeration `HintCode` defines the hints and coding recommendations for best practices
- * which are not mentioned in the Dart Language Specification.
+ * The class `HintCode` defines the hints and coding recommendations for best
+ * practices which are not mentioned in the Dart Language Specification.
  */
-class HintCode extends Enum<HintCode> implements ErrorCode {
+class HintCode extends ErrorCode {
   /**
    * This hint is generated anywhere where the
-   * [StaticWarningCode#ARGUMENT_TYPE_NOT_ASSIGNABLE] would have been generated, if we used
-   * propagated information for the warnings.
+   * [StaticWarningCode.ARGUMENT_TYPE_NOT_ASSIGNABLE] would have been generated,
+   * if we used propagated information for the warnings.
    *
    * @param actualType the name of the actual argument type
    * @param expectedType the name of the expected type
-   * @see StaticWarningCode#ARGUMENT_TYPE_NOT_ASSIGNABLE
-   */
-  static const HintCode ARGUMENT_TYPE_NOT_ASSIGNABLE = const HintCode.con1('ARGUMENT_TYPE_NOT_ASSIGNABLE', 0, "The argument type '{0}' cannot be assigned to the parameter type '{1}'");
-
-  /**
-   * Dead code is code that is never reached, this can happen for instance if a statement follows a
-   * return statement.
-   */
-  static const HintCode DEAD_CODE = const HintCode.con1('DEAD_CODE', 1, "Dead code");
-
-  /**
-   * Dead code is code that is never reached. This case covers cases where the user has catch
-   * clauses after `catch (e)` or `on Object catch (e)`.
-   */
-  static const HintCode DEAD_CODE_CATCH_FOLLOWING_CATCH = const HintCode.con1('DEAD_CODE_CATCH_FOLLOWING_CATCH', 2, "Dead code, catch clauses after a 'catch (e)' or an 'on Object catch (e)' are never reached");
-
-  /**
-   * Dead code is code that is never reached. This case covers cases where the user has an on-catch
-   * clause such as `on A catch (e)`, where a supertype of `A` was already caught.
+   */
+  static const HintCode ARGUMENT_TYPE_NOT_ASSIGNABLE = const HintCode('ARGUMENT_TYPE_NOT_ASSIGNABLE', "The argument type '{0}' cannot be assigned to the parameter type '{1}'");
+
+  /**
+   * Dead code is code that is never reached, this can happen for instance if a
+   * statement follows a return statement.
+   */
+  static const HintCode DEAD_CODE = const HintCode('DEAD_CODE', "Dead code");
+
+  /**
+   * Dead code is code that is never reached. This case covers cases where the
+   * user has catch clauses after `catch (e)` or `on Object catch (e)`.
+   */
+  static const HintCode DEAD_CODE_CATCH_FOLLOWING_CATCH = const HintCode('DEAD_CODE_CATCH_FOLLOWING_CATCH', "Dead code, catch clauses after a 'catch (e)' or an 'on Object catch (e)' are never reached");
+
+  /**
+   * Dead code is code that is never reached. This case covers cases where the
+   * user has an on-catch clause such as `on A catch (e)`, where a supertype of
+   * `A` was already caught.
    *
    * @param subtypeName name of the subtype
    * @param supertypeName name of the supertype
    */
-  static const HintCode DEAD_CODE_ON_CATCH_SUBTYPE = const HintCode.con1('DEAD_CODE_ON_CATCH_SUBTYPE', 3, "Dead code, this on-catch block will never be executed since '{0}' is a subtype of '{1}'");
+  static const HintCode DEAD_CODE_ON_CATCH_SUBTYPE = const HintCode('DEAD_CODE_ON_CATCH_SUBTYPE', "Dead code, this on-catch block will never be executed since '{0}' is a subtype of '{1}'");
 
   /**
    * Deprecated members should not be invoked or used.
    *
    * @param memberName the name of the member
    */
-  static const HintCode DEPRECATED_MEMBER_USE = const HintCode.con1('DEPRECATED_MEMBER_USE', 4, "'{0}' is deprecated");
+  static const HintCode DEPRECATED_MEMBER_USE = const HintCode('DEPRECATED_MEMBER_USE', "'{0}' is deprecated");
 
   /**
    * Duplicate imports.
    */
-  static const HintCode DUPLICATE_IMPORT = const HintCode.con1('DUPLICATE_IMPORT', 5, "Duplicate import");
+  static const HintCode DUPLICATE_IMPORT = const HintCode('DUPLICATE_IMPORT', "Duplicate import");
 
   /**
    * Hint to use the ~/ operator.
    */
-  static const HintCode DIVISION_OPTIMIZATION = const HintCode.con1('DIVISION_OPTIMIZATION', 6, "The operator x ~/ y is more efficient than (x / y).toInt()");
+  static const HintCode DIVISION_OPTIMIZATION = const HintCode('DIVISION_OPTIMIZATION', "The operator x ~/ y is more efficient than (x / y).toInt()");
 
   /**
    * Hint for the `x is double` type checks.
    */
-  static const HintCode IS_DOUBLE = const HintCode.con1('IS_DOUBLE', 7, "When compiled to JS, this test might return true when the left hand side is an int");
+  static const HintCode IS_DOUBLE = const HintCode('IS_DOUBLE', "When compiled to JS, this test might return true when the left hand side is an int");
 
   /**
    * Hint for the `x is int` type checks.
    */
-  static const HintCode IS_INT = const HintCode.con1('IS_INT', 8, "When compiled to JS, this test might return true when the left hand side is a double");
+  static const HintCode IS_INT = const HintCode('IS_INT', "When compiled to JS, this test might return true when the left hand side is a double");
 
   /**
    * Hint for the `x is! double` type checks.
    */
-  static const HintCode IS_NOT_DOUBLE = const HintCode.con1('IS_NOT_DOUBLE', 9, "When compiled to JS, this test might return false when the left hand side is an int");
+  static const HintCode IS_NOT_DOUBLE = const HintCode('IS_NOT_DOUBLE', "When compiled to JS, this test might return false when the left hand side is an int");
 
   /**
    * Hint for the `x is! int` type checks.
    */
-  static const HintCode IS_NOT_INT = const HintCode.con1('IS_NOT_INT', 10, "When compiled to JS, this test might return false when the left hand side is a double");
+  static const HintCode IS_NOT_INT = const HintCode('IS_NOT_INT', "When compiled to JS, this test might return false when the left hand side is a double");
 
   /**
    * Deferred libraries shouldn't define a top level function 'loadLibrary'.
    */
-  static const HintCode IMPORT_DEFERRED_LIBRARY_WITH_LOAD_FUNCTION = const HintCode.con1('IMPORT_DEFERRED_LIBRARY_WITH_LOAD_FUNCTION', 11, "The library '{0}' defines a top-level function named 'loadLibrary' which is hidden by deferring this library");
-
-  /**
-   * This hint is generated anywhere where the [StaticTypeWarningCode#INVALID_ASSIGNMENT]
-   * would have been generated, if we used propagated information for the warnings.
+  static const HintCode IMPORT_DEFERRED_LIBRARY_WITH_LOAD_FUNCTION = const HintCode('IMPORT_DEFERRED_LIBRARY_WITH_LOAD_FUNCTION', "The library '{0}' defines a top-level function named 'loadLibrary' which is hidden by deferring this library");
+
+  /**
+   * This hint is generated anywhere where the
+   * [StaticTypeWarningCode.INVALID_ASSIGNMENT] would have been generated, if we
+   * used propagated information for the warnings.
    *
    * @param rhsTypeName the name of the right hand side type
    * @param lhsTypeName the name of the left hand side type
-   * @see StaticTypeWarningCode#INVALID_ASSIGNMENT
-   */
-  static const HintCode INVALID_ASSIGNMENT = const HintCode.con1('INVALID_ASSIGNMENT', 12, "A value of type '{0}' cannot be assigned to a variable of type '{1}'");
-
-  /**
-   * Generate a hint for methods or functions that have a return type, but do not have a non-void
-   * return statement on all branches. At the end of methods or functions with no return, Dart
-   * implicitly returns `null`, avoiding these implicit returns is considered a best practice.
+   * @see [StaticTypeWarningCode.INVALID_ASSIGNMENT]
+   */
+  static const HintCode INVALID_ASSIGNMENT = const HintCode('INVALID_ASSIGNMENT', "A value of type '{0}' cannot be assigned to a variable of type '{1}'");
+
+  /**
+   * Generate a hint for methods or functions that have a return type, but do
+   * not have a non-void return statement on all branches. At the end of methods
+   * or functions with no return, Dart implicitly returns `null`, avoiding these
+   * implicit returns is considered a best practice.
    *
    * @param returnType the name of the declared return type
    */
-  static const HintCode MISSING_RETURN = const HintCode.con2('MISSING_RETURN', 13, "This function declares a return type of '{0}', but does not end with a return statement", "Either add a return statement or change the return type to 'void'");
+  static const HintCode MISSING_RETURN = const HintCode('MISSING_RETURN', "This function declares a return type of '{0}', but does not end with a return statement", "Either add a return statement or change the return type to 'void'");
 
   /**
    * A getter with the override annotation does not override an existing getter.
    */
-  static const HintCode OVERRIDE_ON_NON_OVERRIDING_GETTER = const HintCode.con1('OVERRIDE_ON_NON_OVERRIDING_GETTER', 14, "Getter does not override an inherited getter");
+  static const HintCode OVERRIDE_ON_NON_OVERRIDING_GETTER = const HintCode('OVERRIDE_ON_NON_OVERRIDING_GETTER', "Getter does not override an inherited getter");
 
   /**
    * A method with the override annotation does not override an existing method.
    */
-  static const HintCode OVERRIDE_ON_NON_OVERRIDING_METHOD = const HintCode.con1('OVERRIDE_ON_NON_OVERRIDING_METHOD', 15, "Method does not override an inherited method");
+  static const HintCode OVERRIDE_ON_NON_OVERRIDING_METHOD = const HintCode('OVERRIDE_ON_NON_OVERRIDING_METHOD', "Method does not override an inherited method");
 
   /**
    * A setter with the override annotation does not override an existing setter.
    */
-  static const HintCode OVERRIDE_ON_NON_OVERRIDING_SETTER = const HintCode.con1('OVERRIDE_ON_NON_OVERRIDING_SETTER', 16, "Setter does not override an inherited setter");
+  static const HintCode OVERRIDE_ON_NON_OVERRIDING_SETTER = const HintCode('OVERRIDE_ON_NON_OVERRIDING_SETTER', "Setter does not override an inherited setter");
 
   /**
    * Hint for classes that override equals, but not hashCode.
    *
    * @param className the name of the current class
    */
-  static const HintCode OVERRIDE_EQUALS_BUT_NOT_HASH_CODE = const HintCode.con1('OVERRIDE_EQUALS_BUT_NOT_HASH_CODE', 17, "The class '{0}' overrides 'operator==', but not 'get hashCode'");
+  static const HintCode OVERRIDE_EQUALS_BUT_NOT_HASH_CODE = const HintCode('OVERRIDE_EQUALS_BUT_NOT_HASH_CODE', "The class '{0}' overrides 'operator==', but not 'get hashCode'");
 
   /**
    * Type checks of the type `x is! Null` should be done with `x != null`.
    */
-  static const HintCode TYPE_CHECK_IS_NOT_NULL = const HintCode.con1('TYPE_CHECK_IS_NOT_NULL', 18, "Tests for non-null should be done with '!= null'");
+  static const HintCode TYPE_CHECK_IS_NOT_NULL = const HintCode('TYPE_CHECK_IS_NOT_NULL', "Tests for non-null should be done with '!= null'");
 
   /**
    * Type checks of the type `x is Null` should be done with `x == null`.
    */
-  static const HintCode TYPE_CHECK_IS_NULL = const HintCode.con1('TYPE_CHECK_IS_NULL', 19, "Tests for null should be done with '== null'");
-
-  /**
-   * This hint is generated anywhere where the [StaticTypeWarningCode#UNDEFINED_GETTER] or
-   * [StaticWarningCode#UNDEFINED_GETTER] would have been generated, if we used propagated
-   * information for the warnings.
+  static const HintCode TYPE_CHECK_IS_NULL = const HintCode('TYPE_CHECK_IS_NULL', "Tests for null should be done with '== null'");
+
+  /**
+   * This hint is generated anywhere where the
+   * [StaticTypeWarningCode.UNDEFINED_GETTER] or
+   * [StaticWarningCode.UNDEFINED_GETTER] would have been generated, if we used
+   * propagated information for the warnings.
    *
    * @param getterName the name of the getter
-   * @param enclosingType the name of the enclosing type where the getter is being looked for
-   * @see StaticTypeWarningCode#UNDEFINED_GETTER
-   * @see StaticWarningCode#UNDEFINED_GETTER
-   */
-  static const HintCode UNDEFINED_GETTER = const HintCode.con1('UNDEFINED_GETTER', 20, "There is no such getter '{0}' in '{1}'");
-
-  /**
-   * This hint is generated anywhere where the [StaticTypeWarningCode#UNDEFINED_METHOD] would
-   * have been generated, if we used propagated information for the warnings.
+   * @param enclosingType the name of the enclosing type where the getter is
+   *        being looked for
+   * @see [StaticTypeWarningCode.UNDEFINED_GETTER]
+   * @see [StaticWarningCode.UNDEFINED_GETTER]
+   */
+  static const HintCode UNDEFINED_GETTER = const HintCode('UNDEFINED_GETTER', "There is no such getter '{0}' in '{1}'");
+
+  /**
+   * This hint is generated anywhere where the
+   * [StaticTypeWarningCode.UNDEFINED_METHOD] would have been generated, if we
+   * used propagated information for the warnings.
    *
    * @param methodName the name of the method that is undefined
-   * @param typeName the resolved type name that the method lookup is happening on
-   * @see StaticTypeWarningCode#UNDEFINED_METHOD
-   */
-  static const HintCode UNDEFINED_METHOD = const HintCode.con1('UNDEFINED_METHOD', 21, "The method '{0}' is not defined for the class '{1}'");
-
-  /**
-   * This hint is generated anywhere where the [StaticTypeWarningCode#UNDEFINED_OPERATOR]
-   * would have been generated, if we used propagated information for the warnings.
+   * @param typeName the resolved type name that the method lookup is happening
+   *        on
+   * @see [StaticTypeWarningCode.UNDEFINED_METHOD]
+   */
+  static const HintCode UNDEFINED_METHOD = const HintCode('UNDEFINED_METHOD', "The method '{0}' is not defined for the class '{1}'");
+
+  /**
+   * This hint is generated anywhere where the
+   * [StaticTypeWarningCode.UNDEFINED_OPERATOR] would have been generated, if we
+   * used propagated information for the warnings.
    *
    * @param operator the name of the operator
-   * @param enclosingType the name of the enclosing type where the operator is being looked for
-   * @see StaticTypeWarningCode#UNDEFINED_OPERATOR
-   */
-  static const HintCode UNDEFINED_OPERATOR = const HintCode.con1('UNDEFINED_OPERATOR', 22, "There is no such operator '{0}' in '{1}'");
-
-  /**
-   * This hint is generated anywhere where the [StaticTypeWarningCode#UNDEFINED_SETTER] or
-   * [StaticWarningCode#UNDEFINED_SETTER] would have been generated, if we used propagated
-   * information for the warnings.
+   * @param enclosingType the name of the enclosing type where the operator is
+   *        being looked for
+   * @see [StaticTypeWarningCode.UNDEFINED_OPERATOR]
+   */
+  static const HintCode UNDEFINED_OPERATOR = const HintCode('UNDEFINED_OPERATOR', "There is no such operator '{0}' in '{1}'");
+
+  /**
+   * This hint is generated anywhere where the
+   * [StaticTypeWarningCode.UNDEFINED_SETTER] or
+   * [StaticWarningCode.UNDEFINED_SETTER] would have been generated, if we used
+   * propagated information for the warnings.
    *
    * @param setterName the name of the setter
-   * @param enclosingType the name of the enclosing type where the setter is being looked for
-   * @see StaticTypeWarningCode#UNDEFINED_SETTER
-   * @see StaticWarningCode#UNDEFINED_SETTER
-   */
-  static const HintCode UNDEFINED_SETTER = const HintCode.con1('UNDEFINED_SETTER', 23, "There is no such setter '{0}' in '{1}'");
+   * @param enclosingType the name of the enclosing type where the setter is
+   *        being looked for
+   * @see [StaticTypeWarningCode.UNDEFINED_SETTER]
+   * @see [StaticWarningCode.UNDEFINED_SETTER]
+   */
+  static const HintCode UNDEFINED_SETTER = const HintCode('UNDEFINED_SETTER', "There is no such setter '{0}' in '{1}'");
 
   /**
    * Unnecessary cast.
    */
-  static const HintCode UNNECESSARY_CAST = const HintCode.con1('UNNECESSARY_CAST', 24, "Unnecessary cast");
+  static const HintCode UNNECESSARY_CAST = const HintCode('UNNECESSARY_CAST', "Unnecessary cast");
 
   /**
    * Unnecessary type checks, the result is always true.
    */
-  static const HintCode UNNECESSARY_TYPE_CHECK_FALSE = const HintCode.con1('UNNECESSARY_TYPE_CHECK_FALSE', 25, "Unnecessary type check, the result is always false");
+  static const HintCode UNNECESSARY_TYPE_CHECK_FALSE = const HintCode('UNNECESSARY_TYPE_CHECK_FALSE', "Unnecessary type check, the result is always false");
 
   /**
    * Unnecessary type checks, the result is always false.
    */
-  static const HintCode UNNECESSARY_TYPE_CHECK_TRUE = const HintCode.con1('UNNECESSARY_TYPE_CHECK_TRUE', 26, "Unnecessary type check, the result is always true");
+  static const HintCode UNNECESSARY_TYPE_CHECK_TRUE = const HintCode('UNNECESSARY_TYPE_CHECK_TRUE', "Unnecessary type check, the result is always true");
 
   /**
    * Unused imports are imports which are never used.
    */
-  static const HintCode UNUSED_IMPORT = const HintCode.con1('UNUSED_IMPORT', 27, "Unused import");
+  static const HintCode UNUSED_IMPORT = const HintCode('UNUSED_IMPORT', "Unused import");
 
   /**
    * Unused local variables are local varaibles which are never read.
    */
-  static const HintCode UNUSED_LOCAL_VARIABLE = const HintCode.con1('UNUSED_LOCAL_VARIABLE', 28, "The value of the local variable '{0}' is not used");
-
-  /**
-   * Hint for cases where the source expects a method or function to return a non-void result, but
-   * the method or function signature returns void.
+  static const HintCode UNUSED_LOCAL_VARIABLE = const HintCode('UNUSED_LOCAL_VARIABLE', "The value of the local variable '{0}' is not used");
+
+  /**
+   * Hint for cases where the source expects a method or function to return a
+   * non-void result, but the method or function signature returns void.
    *
    * @param name the name of the method or function that returns void
    */
-  static const HintCode USE_OF_VOID_RESULT = const HintCode.con1('USE_OF_VOID_RESULT', 29, "The result of '{0}' is being used, even though it is declared to be 'void'");
-
-  /**
-   * It is a bad practice for a source file in a package "lib" directory hierarchy to traverse
-   * outside that directory hierarchy. For example, a source file in the "lib" directory should not
-   * contain a directive such as `import '../web/some.dart'` which references a file outside
-   * the lib directory.
-   */
-  static const HintCode FILE_IMPORT_INSIDE_LIB_REFERENCES_FILE_OUTSIDE = const HintCode.con1('FILE_IMPORT_INSIDE_LIB_REFERENCES_FILE_OUTSIDE', 30, "A file in the 'lib' directory hierarchy should not reference a file outside that hierarchy");
-
-  /**
-   * It is a bad practice for a source file ouside a package "lib" directory hierarchy to traverse
-   * into that directory hierarchy. For example, a source file in the "web" directory should not
-   * contain a directive such as `import '../lib/some.dart'` which references a file inside
-   * the lib directory.
-   */
-  static const HintCode FILE_IMPORT_OUTSIDE_LIB_REFERENCES_FILE_INSIDE = const HintCode.con1('FILE_IMPORT_OUTSIDE_LIB_REFERENCES_FILE_INSIDE', 31, "A file outside the 'lib' directory hierarchy should not reference a file inside that hierarchy. Use a package: reference instead.");
-
-  /**
-   * It is a bad practice for a package import to reference anything outside the given package, or
-   * more generally, it is bad practice for a package import to contain a "..". For example, a
-   * source file should not contain a directive such as `import 'package:foo/../some.dart'`.
-   */
-  static const HintCode PACKAGE_IMPORT_CONTAINS_DOT_DOT = const HintCode.con1('PACKAGE_IMPORT_CONTAINS_DOT_DOT', 32, "A package import should not contain '..'");
-
-  static const List<HintCode> values = const [
-      ARGUMENT_TYPE_NOT_ASSIGNABLE,
-      DEAD_CODE,
-      DEAD_CODE_CATCH_FOLLOWING_CATCH,
-      DEAD_CODE_ON_CATCH_SUBTYPE,
-      DEPRECATED_MEMBER_USE,
-      DUPLICATE_IMPORT,
-      DIVISION_OPTIMIZATION,
-      IS_DOUBLE,
-      IS_INT,
-      IS_NOT_DOUBLE,
-      IS_NOT_INT,
-      IMPORT_DEFERRED_LIBRARY_WITH_LOAD_FUNCTION,
-      INVALID_ASSIGNMENT,
-      MISSING_RETURN,
-      OVERRIDE_ON_NON_OVERRIDING_GETTER,
-      OVERRIDE_ON_NON_OVERRIDING_METHOD,
-      OVERRIDE_ON_NON_OVERRIDING_SETTER,
-      OVERRIDE_EQUALS_BUT_NOT_HASH_CODE,
-      TYPE_CHECK_IS_NOT_NULL,
-      TYPE_CHECK_IS_NULL,
-      UNDEFINED_GETTER,
-      UNDEFINED_METHOD,
-      UNDEFINED_OPERATOR,
-      UNDEFINED_SETTER,
-      UNNECESSARY_CAST,
-      UNNECESSARY_TYPE_CHECK_FALSE,
-      UNNECESSARY_TYPE_CHECK_TRUE,
-      UNUSED_IMPORT,
-      UNUSED_LOCAL_VARIABLE,
-      USE_OF_VOID_RESULT,
-      FILE_IMPORT_INSIDE_LIB_REFERENCES_FILE_OUTSIDE,
-      FILE_IMPORT_OUTSIDE_LIB_REFERENCES_FILE_INSIDE,
-      PACKAGE_IMPORT_CONTAINS_DOT_DOT];
-
-  /**
-   * The template used to create the message to be displayed for this error.
-   */
-  final String message;
-
-  /**
-   * The template used to create the correction to be displayed for this error, or `null` if
-   * there is no correction information for this error.
-   */
-  final String correction;
-
-  /**
-   * Initialize a newly created error code to have the given message.
-   *
-   * @param message the message template used to create the message to be displayed for the error
-   */
-  const HintCode.con1(String name, int ordinal, String message) : this.con2(name, ordinal, message, null);
-
-  /**
-   * Initialize a newly created error code to have the given message and correction.
-   *
-   * @param message the template used to create the message to be displayed for the error
-   * @param correction the template used to create the correction to be displayed for the error
-   */
-  const HintCode.con2(String name, int ordinal, this.message, this.correction) : super(name, ordinal);
+  static const HintCode USE_OF_VOID_RESULT = const HintCode('USE_OF_VOID_RESULT', "The result of '{0}' is being used, even though it is declared to be 'void'");
+
+  /**
+   * It is a bad practice for a source file in a package "lib" directory
+   * hierarchy to traverse outside that directory hierarchy. For example, a
+   * source file in the "lib" directory should not contain a directive such as
+   * `import '../web/some.dart'` which references a file outside the lib
+   * directory.
+   */
+  static const HintCode FILE_IMPORT_INSIDE_LIB_REFERENCES_FILE_OUTSIDE = const HintCode('FILE_IMPORT_INSIDE_LIB_REFERENCES_FILE_OUTSIDE', "A file in the 'lib' directory hierarchy should not reference a file outside that hierarchy");
+
+  /**
+   * It is a bad practice for a source file ouside a package "lib" directory
+   * hierarchy to traverse into that directory hierarchy. For example, a source
+   * file in the "web" directory should not contain a directive such as
+   * `import '../lib/some.dart'` which references a file inside the lib
+   * directory.
+   */
+  static const HintCode FILE_IMPORT_OUTSIDE_LIB_REFERENCES_FILE_INSIDE = const HintCode('FILE_IMPORT_OUTSIDE_LIB_REFERENCES_FILE_INSIDE', "A file outside the 'lib' directory hierarchy should not reference a file inside that hierarchy. Use a package: reference instead.");
+
+  /**
+   * It is a bad practice for a package import to reference anything outside the
+   * given package, or more generally, it is bad practice for a package import
+   * to contain a "..". For example, a source file should not contain a
+   * directive such as `import 'package:foo/../some.dart'`.
+   */
+  static const HintCode PACKAGE_IMPORT_CONTAINS_DOT_DOT = const HintCode('PACKAGE_IMPORT_CONTAINS_DOT_DOT', "A package import should not contain '..'");
+
+  /**
+   * Initialize a newly created error code to have the given [name]. The message
+   * associated with the error will be created from the given [message]
+   * template. The correction associated with the error will be created from the
+   * given [correction] template.
+   */
+  const HintCode(String name, String message, [String correction]) : super(name, message, correction);
 
   @override
   ErrorSeverity get errorSeverity => ErrorType.HINT.severity;
 
   @override
   ErrorType get type => ErrorType.HINT;
-
-  @override
-  String get uniqueName => "$runtimeType.$name";
 }
 
 /**
- * The enumeration `HtmlWarningCode` defines the error codes used for warnings in HTML files.
- * The convention for this class is for the name of the error code to indicate the problem that
- * caused the error to be generated and for the error message to explain what is wrong and, when
- * appropriate, how the problem can be corrected.
+ * The enumeration `HtmlWarningCode` defines the error codes used for warnings
+ * in HTML files. The convention for this class is for the name of the error
+ * code to indicate the problem that caused the error to be generated and for
+ * the error message to explain what is wrong and, when appropriate, how the
+ * problem can be corrected.
  */
-class HtmlWarningCode extends Enum<HtmlWarningCode> implements ErrorCode {
-  /**
-   * An error code indicating that the value of the 'src' attribute of a Dart script tag is not a
-   * valid URI.
+class HtmlWarningCode extends ErrorCode {
+  /**
+   * An error code indicating that the value of the 'src' attribute of a Dart
+   * script tag is not a valid URI.
    *
    * @param uri the URI that is invalid
    */
-  static const HtmlWarningCode INVALID_URI = const HtmlWarningCode.con1('INVALID_URI', 0, "Invalid URI syntax: '{0}'");
-
-  /**
-   * An error code indicating that the value of the 'src' attribute of a Dart script tag references
-   * a file that does not exist.
+  static const HtmlWarningCode INVALID_URI = const HtmlWarningCode('INVALID_URI', "Invalid URI syntax: '{0}'");
+
+  /**
+   * An error code indicating that the value of the 'src' attribute of a Dart
+   * script tag references a file that does not exist.
    *
    * @param uri the URI pointing to a non-existent file
    */
-  static const HtmlWarningCode URI_DOES_NOT_EXIST = const HtmlWarningCode.con1('URI_DOES_NOT_EXIST', 1, "Target of URI does not exist: '{0}'");
-
-  static const List<HtmlWarningCode> values = const [INVALID_URI, URI_DOES_NOT_EXIST];
-
-  /**
-   * The template used to create the message to be displayed for this error.
-   */
-  final String message;
-
-  /**
-   * The template used to create the correction to be displayed for this error, or `null` if
-   * there is no correction information for this error.
-   */
-  final String correction;
-
-  /**
-   * Initialize a newly created error code to have the given message.
-   *
-   * @param message the message template used to create the message to be displayed for the error
-   */
-  const HtmlWarningCode.con1(String name, int ordinal, String message) : this.con2(name, ordinal, message, null);
-
-  /**
-   * Initialize a newly created error code to have the given message and correction.
-   *
-   * @param message the template used to create the message to be displayed for the error
-   * @param correction the template used to create the correction to be displayed for the error
-   */
-  const HtmlWarningCode.con2(String name, int ordinal, this.message, this.correction) : super(name, ordinal);
+  static const HtmlWarningCode URI_DOES_NOT_EXIST = const HtmlWarningCode('URI_DOES_NOT_EXIST', "Target of URI does not exist: '{0}'");
+
+  /**
+   * Initialize a newly created error code to have the given [name]. The message
+   * associated with the error will be created from the given [message]
+   * template. The correction associated with the error will be created from the
+   * given [correction] template.
+   */
+  const HtmlWarningCode(String name, String message, [String correction]) : super(name, message, correction);
 
   @override
   ErrorSeverity get errorSeverity => ErrorSeverity.WARNING;
 
   @override
   ErrorType get type => ErrorType.STATIC_WARNING;
-
-  @override
-  String get uniqueName => "$runtimeType.$name";
 }
 
 /**
  * The enumeration `PolymerCode` defines Polymer specific problems.
  */
-class PolymerCode extends Enum<PolymerCode> implements ErrorCode {
-  static const PolymerCode ATTRIBUTE_FIELD_NOT_PUBLISHED = const PolymerCode('ATTRIBUTE_FIELD_NOT_PUBLISHED', 0, "Field '{0}' in '{1}' must be @published");
-
-  static const PolymerCode DUPLICATE_ATTRIBUTE_DEFINITION = const PolymerCode('DUPLICATE_ATTRIBUTE_DEFINITION', 1, "The attribute '{0}' is already defined");
-
-  static const PolymerCode EMPTY_ATTRIBUTES = const PolymerCode('EMPTY_ATTRIBUTES', 2, "Empty 'attributes' attribute is useless");
-
-  static const PolymerCode INVALID_ATTRIBUTE_NAME = const PolymerCode('INVALID_ATTRIBUTE_NAME', 3, "'{0}' is not a valid name for a custom element attribute");
-
-  static const PolymerCode INVALID_TAG_NAME = const PolymerCode('INVALID_TAG_NAME', 4, "'{0}' is not a valid name for a custom element");
-
-  static const PolymerCode MISSING_TAG_NAME = const PolymerCode('MISSING_TAG_NAME', 5, "Missing tag name of the custom element. Please include an attribute like name='your-tag-name'");
-
-  static const PolymerCode UNDEFINED_ATTRIBUTE_FIELD = const PolymerCode('UNDEFINED_ATTRIBUTE_FIELD', 6, "There is no such field '{0}' in '{1}'");
-
-  static const List<PolymerCode> values = const [
-      ATTRIBUTE_FIELD_NOT_PUBLISHED,
-      DUPLICATE_ATTRIBUTE_DEFINITION,
-      EMPTY_ATTRIBUTES,
-      INVALID_ATTRIBUTE_NAME,
-      INVALID_TAG_NAME,
-      MISSING_TAG_NAME,
-      UNDEFINED_ATTRIBUTE_FIELD];
-
-  /**
-   * The template used to create the message to be displayed for this error.
-   */
-  final String message;
-
-  /**
-   * Initialize a newly created error code to have the given message.
-   *
-   * @param message the message template used to create the message to be displayed for the error
-   */
-  const PolymerCode(String name, int ordinal, this.message) : super(name, ordinal);
-
-  @override
-  String get correction => null;
+class PolymerCode extends ErrorCode {
+  static const PolymerCode ATTRIBUTE_FIELD_NOT_PUBLISHED = const PolymerCode('ATTRIBUTE_FIELD_NOT_PUBLISHED', "Field '{0}' in '{1}' must be @published");
+
+  static const PolymerCode DUPLICATE_ATTRIBUTE_DEFINITION = const PolymerCode('DUPLICATE_ATTRIBUTE_DEFINITION', "The attribute '{0}' is already defined");
+
+  static const PolymerCode EMPTY_ATTRIBUTES = const PolymerCode('EMPTY_ATTRIBUTES', "Empty 'attributes' attribute is useless");
+
+  static const PolymerCode INVALID_ATTRIBUTE_NAME = const PolymerCode('INVALID_ATTRIBUTE_NAME', "'{0}' is not a valid name for a custom element attribute");
+
+  static const PolymerCode INVALID_TAG_NAME = const PolymerCode('INVALID_TAG_NAME', "'{0}' is not a valid name for a custom element");
+
+  static const PolymerCode MISSING_TAG_NAME = const PolymerCode('MISSING_TAG_NAME', "Missing tag name of the custom element. Please include an attribute like name='your-tag-name'");
+
+  static const PolymerCode UNDEFINED_ATTRIBUTE_FIELD = const PolymerCode('UNDEFINED_ATTRIBUTE_FIELD', "There is no such field '{0}' in '{1}'");
+
+  /**
+   * Initialize a newly created error code to have the given [name]. The message
+   * associated with the error will be created from the given [message]
+   * template. The correction associated with the error will be created from the
+   * given [correction] template.
+   */
+  const PolymerCode(String name, String message, [String correction]) : super(name, message, correction);
 
   @override
   ErrorSeverity get errorSeverity => ErrorSeverity.INFO;
 
   @override
   ErrorType get type => ErrorType.POLYMER;
-
-  @override
-  String get uniqueName => "$runtimeType.$name";
 }
 
 /**
- * The enumeration `StaticTypeWarningCode` defines the error codes used for static type
- * warnings. The convention for this class is for the name of the error code to indicate the problem
- * that caused the error to be generated and for the error message to explain what is wrong and,
- * when appropriate, how the problem can be corrected.
+ * The class `StaticTypeWarningCode` defines the error codes used for static
+ * type warnings. The convention for this class is for the name of the error
+ * code to indicate the problem that caused the error to be generated and for
+ * the error message to explain what is wrong and, when appropriate, how the
+ * problem can be corrected.
  */
-class StaticTypeWarningCode extends Enum<StaticTypeWarningCode> implements ErrorCode {
-  /**
-   * 12.7 Lists: A fresh instance (7.6.1) <i>a</i>, of size <i>n</i>, whose class implements the
-   * built-in class <i>List&lt;E></i> is allocated.
+class StaticTypeWarningCode extends ErrorCode {
+  /**
+   * 12.7 Lists: A fresh instance (7.6.1) <i>a</i>, of size <i>n</i>, whose
+   * class implements the built-in class <i>List&lt;E></i> is allocated.
    *
    * @param numTypeArgument the number of provided type arguments
    */
-  static const StaticTypeWarningCode EXPECTED_ONE_LIST_TYPE_ARGUMENTS = const StaticTypeWarningCode.con1('EXPECTED_ONE_LIST_TYPE_ARGUMENTS', 0, "List literal requires exactly one type arguments or none, but {0} found");
-
-  /**
-   * 12.8 Maps: A fresh instance (7.6.1) <i>m</i>, of size <i>n</i>, whose class implements the
-   * built-in class <i>Map&lt;K, V></i> is allocated.
+  static const StaticTypeWarningCode EXPECTED_ONE_LIST_TYPE_ARGUMENTS = const StaticTypeWarningCode('EXPECTED_ONE_LIST_TYPE_ARGUMENTS', "List literal requires exactly one type arguments or none, but {0} found");
+
+  /**
+   * 12.8 Maps: A fresh instance (7.6.1) <i>m</i>, of size <i>n</i>, whose class
+   * implements the built-in class <i>Map&lt;K, V></i> is allocated.
    *
    * @param numTypeArgument the number of provided type arguments
    */
-  static const StaticTypeWarningCode EXPECTED_TWO_MAP_TYPE_ARGUMENTS = const StaticTypeWarningCode.con1('EXPECTED_TWO_MAP_TYPE_ARGUMENTS', 1, "Map literal requires exactly two type arguments or none, but {0} found");
-
-  /**
-   * 12.18 Assignment: Let <i>T</i> be the static type of <i>e<sub>1</sub></i>. It is a static type
-   * warning if <i>T</i> does not have an accessible instance setter named <i>v=</i>.
-   *
-   * @see #UNDEFINED_SETTER
-   */
-  static const StaticTypeWarningCode INACCESSIBLE_SETTER = const StaticTypeWarningCode.con1('INACCESSIBLE_SETTER', 2, "");
-
-  /**
-   * 8.1.1 Inheritance and Overriding: However, if the above rules would cause multiple members
-   * <i>m<sub>1</sub>, &hellip;, m<sub>k</sub></i> with the same name <i>n</i> that would be
-   * inherited (because identically named members existed in several superinterfaces) then at most
-   * one member is inherited.
-   *
-   * If the static types <i>T<sub>1</sub>, &hellip;, T<sub>k</sub></i> of the members
-   * <i>m<sub>1</sub>, &hellip;, m<sub>k</sub></i> are not identical, then there must be a member
-   * <i>m<sub>x</sub></i> such that <i>T<sub>x</sub> &lt;: T<sub>i</sub>, 1 &lt;= x &lt;= k</i> for
-   * all <i>i, 1 &lt;= i &lt;= k</i>, or a static type warning occurs. The member that is inherited
-   * is <i>m<sub>x</sub></i>, if it exists; otherwise:
-   * * Let <i>numberOfPositionals</i>(<i>f</i>) denote the number of positional parameters of a
-   * function <i>f</i>, and let <i>numberOfRequiredParams</i>(<i>f</i>) denote the number of
-   * required parameters of a function <i>f</i>. Furthermore, let <i>s</i> denote the set of all
-   * named parameters of the <i>m<sub>1</sub>, &hellip;, m<sub>k</sub></i>. Then let
+  static const StaticTypeWarningCode EXPECTED_TWO_MAP_TYPE_ARGUMENTS = const StaticTypeWarningCode('EXPECTED_TWO_MAP_TYPE_ARGUMENTS', "Map literal requires exactly two type arguments or none, but {0} found");
+
+  /**
+   * 12.18 Assignment: Let <i>T</i> be the static type of <i>e<sub>1</sub></i>.
+   * It is a static type warning if <i>T</i> does not have an accessible
+   * instance setter named <i>v=</i>.
+   *
+   * @see [UNDEFINED_SETTER]
+   */
+  static const StaticTypeWarningCode INACCESSIBLE_SETTER = const StaticTypeWarningCode('INACCESSIBLE_SETTER', "");
+
+  /**
+   * 8.1.1 Inheritance and Overriding: However, if the above rules would cause
+   * multiple members <i>m<sub>1</sub>, &hellip;, m<sub>k</sub></i> with the
+   * same name <i>n</i> that would be inherited (because identically named
+   * members existed in several superinterfaces) then at most one member is
+   * inherited.
+   *
+   * If the static types <i>T<sub>1</sub>, &hellip;, T<sub>k</sub></i> of the
+   * members <i>m<sub>1</sub>, &hellip;, m<sub>k</sub></i> are not identical,
+   * then there must be a member <i>m<sub>x</sub></i> such that <i>T<sub>x</sub>
+   * &lt;: T<sub>i</sub>, 1 &lt;= x &lt;= k</i> for all <i>i, 1 &lt;= i &lt;=
+   * k</i>, or a static type warning occurs. The member that is inherited is
+   * <i>m<sub>x</sub></i>, if it exists; otherwise:
+   * * Let <i>numberOfPositionals</i>(<i>f</i>) denote the number of positional
+   *   parameters of a function <i>f</i>, and let
+   *   <i>numberOfRequiredParams</i>(<i>f</i>) denote the number of required
+   *   parameters of a function <i>f</i>. Furthermore, let <i>s</i> denote the
+   *   set of all named parameters of the <i>m<sub>1</sub>, &hellip;,
+   *   m<sub>k</sub></i>. Then let
    * * <i>h = max(numberOfPositionals(m<sub>i</sub>)),</i>
-   * * <i>r = min(numberOfRequiredParams(m<sub>i</sub>)), for all <i>i</i>, 1 <= i <= k.</i>
-   * If <i>r <= h</i> then <i>I</i> has a method named <i>n</i>, with <i>r</i> required parameters
-   * of type <b>dynamic</b>, <i>h</i> positional parameters of type <b>dynamic</b>, named parameters
-   * <i>s</i> of type <b>dynamic</b> and return type <b>dynamic</b>.
-   * * Otherwise none of the members <i>m<sub>1</sub>, &hellip;, m<sub>k</sub></i> is inherited.
-   */
-  static const StaticTypeWarningCode INCONSISTENT_METHOD_INHERITANCE = const StaticTypeWarningCode.con1('INCONSISTENT_METHOD_INHERITANCE', 3, "'{0}' is inherited by at least two interfaces inconsistently, from {1}");
-
-  /**
-   * 12.15.1 Ordinary Invocation: It is a static type warning if <i>T</i> does not have an
-   * accessible (3.2) instance member named <i>m</i>.
+   * * <i>r = min(numberOfRequiredParams(m<sub>i</sub>)), for all <i>i</i>, 1 <=
+   *   i <= k.</i> If <i>r <= h</i> then <i>I</i> has a method named <i>n</i>,
+   *   with <i>r</i> required parameters of type <b>dynamic</b>, <i>h</i>
+   *   positional parameters of type <b>dynamic</b>, named parameters <i>s</i>
+   *   of type <b>dynamic</b> and return type <b>dynamic</b>.
+   * * Otherwise none of the members <i>m<sub>1</sub>, &hellip;,
+   *   m<sub>k</sub></i> is inherited.
+   */
+  static const StaticTypeWarningCode INCONSISTENT_METHOD_INHERITANCE = const StaticTypeWarningCode('INCONSISTENT_METHOD_INHERITANCE', "'{0}' is inherited by at least two interfaces inconsistently, from {1}");
+
+  /**
+   * 12.15.1 Ordinary Invocation: It is a static type warning if <i>T</i> does
+   * not have an accessible (3.2) instance member named <i>m</i>.
    *
    * @param memberName the name of the static member
-   * @see UNQUALIFIED_REFERENCE_TO_NON_LOCAL_STATIC_MEMBER
-   */
-  static const StaticTypeWarningCode INSTANCE_ACCESS_TO_STATIC_MEMBER = const StaticTypeWarningCode.con1('INSTANCE_ACCESS_TO_STATIC_MEMBER', 4, "Static member '{0}' cannot be accessed using instance access");
-
-  /**
-   * 12.18 Assignment: It is a static type warning if the static type of <i>e</i> may not be
-   * assigned to the static type of <i>v</i>. The static type of the expression <i>v = e</i> is the
-   * static type of <i>e</i>.
-   *
-   * 12.18 Assignment: It is a static type warning if the static type of <i>e</i> may not be
-   * assigned to the static type of <i>C.v</i>. The static type of the expression <i>C.v = e</i> is
-   * the static type of <i>e</i>.
-   *
-   * 12.18 Assignment: Let <i>T</i> be the static type of <i>e<sub>1</sub></i>. It is a static type
-   * warning if the static type of <i>e<sub>2</sub></i> may not be assigned to <i>T</i>.
+   * @see [UNQUALIFIED_REFERENCE_TO_NON_LOCAL_STATIC_MEMBER]
+   */
+  static const StaticTypeWarningCode INSTANCE_ACCESS_TO_STATIC_MEMBER = const StaticTypeWarningCode('INSTANCE_ACCESS_TO_STATIC_MEMBER', "Static member '{0}' cannot be accessed using instance access");
+
+  /**
+   * 12.18 Assignment: It is a static type warning if the static type of
+   * <i>e</i> may not be assigned to the static type of <i>v</i>. The static
+   * type of the expression <i>v = e</i> is the static type of <i>e</i>.
+   *
+   * 12.18 Assignment: It is a static type warning if the static type of
+   * <i>e</i> may not be assigned to the static type of <i>C.v</i>. The static
+   * type of the expression <i>C.v = e</i> is the static type of <i>e</i>.
+   *
+   * 12.18 Assignment: Let <i>T</i> be the static type of <i>e<sub>1</sub></i>.
+   * It is a static type warning if the static type of <i>e<sub>2</sub></i> may
+   * not be assigned to <i>T</i>.
    *
    * @param rhsTypeName the name of the right hand side type
    * @param lhsTypeName the name of the left hand side type
    */
-  static const StaticTypeWarningCode INVALID_ASSIGNMENT = const StaticTypeWarningCode.con1('INVALID_ASSIGNMENT', 5, "A value of type '{0}' cannot be assigned to a variable of type '{1}'");
-
-  /**
-   * 12.15.1 Ordinary Invocation: An ordinary method invocation <i>i</i> has the form
-   * <i>o.m(a<sub>1</sub>, &hellip;, a<sub>n</sub>, x<sub>n+1</sub>: a<sub>n+1</sub>, &hellip;
-   * x<sub>n+k</sub>: a<sub>n+k</sub>)</i>.
-   *
-   * Let <i>T</i> be the static type of <i>o</i>. It is a static type warning if <i>T</i> does not
-   * have an accessible instance member named <i>m</i>. If <i>T.m</i> exists, it is a static warning
-   * if the type <i>F</i> of <i>T.m</i> may not be assigned to a function type. If <i>T.m</i> does
-   * not exist, or if <i>F</i> is not a function type, the static type of <i>i</i> is dynamic.
-   *
-   * 12.15.3 Static Invocation: It is a static type warning if the type <i>F</i> of <i>C.m</i> may
-   * not be assigned to a function type.
+  static const StaticTypeWarningCode INVALID_ASSIGNMENT = const StaticTypeWarningCode('INVALID_ASSIGNMENT', "A value of type '{0}' cannot be assigned to a variable of type '{1}'");
+
+  /**
+   * 12.15.1 Ordinary Invocation: An ordinary method invocation <i>i</i> has the
+   * form <i>o.m(a<sub>1</sub>, &hellip;, a<sub>n</sub>, x<sub>n+1</sub>:
+   * a<sub>n+1</sub>, &hellip; x<sub>n+k</sub>: a<sub>n+k</sub>)</i>.
+   *
+   * Let <i>T</i> be the static type of <i>o</i>. It is a static type warning if
+   * <i>T</i> does not have an accessible instance member named <i>m</i>. If
+   * <i>T.m</i> exists, it is a static warning if the type <i>F</i> of
+   * <i>T.m</i> may not be assigned to a function type. If <i>T.m</i> does not
+   * exist, or if <i>F</i> is not a function type, the static type of <i>i</i>
+   * is dynamic.
+   *
+   * 12.15.3 Static Invocation: It is a static type warning if the type <i>F</i>
+   * of <i>C.m</i> may not be assigned to a function type.
    *
    * 12.15.4 Super Invocation: A super method invocation <i>i</i> has the form
-   * <i>super.m(a<sub>1</sub>, &hellip;, a<sub>n</sub>, x<sub>n+1</sub>: a<sub>n+1</sub>, &hellip;
-   * x<sub>n+k</sub>: a<sub>n+k</sub>)</i>. If <i>S.m</i> exists, it is a static warning if the type
-   * <i>F</i> of <i>S.m</i> may not be assigned to a function type.
-   *
-   * @param nonFunctionIdentifier the name of the identifier that is not a function type
-   */
-  static const StaticTypeWarningCode INVOCATION_OF_NON_FUNCTION = const StaticTypeWarningCode.con1('INVOCATION_OF_NON_FUNCTION', 6, "'{0}' is not a method");
-
-  /**
-   * 12.14.4 Function Expression Invocation: A function expression invocation <i>i</i> has the form
-   * <i>e<sub>f</sub>(a<sub>1</sub>, &hellip;, a<sub>n</sub>, x<sub>n+1</sub>: a<sub>n+1</sub>,
-   * &hellip;, x<sub>n+k</sub>: a<sub>n+k</sub>)</i>, where <i>e<sub>f</sub></i> is an expression.
-   *
-   * It is a static type warning if the static type <i>F</i> of <i>e<sub>f</sub></i> may not be
-   * assigned to a function type.
-   */
-  static const StaticTypeWarningCode INVOCATION_OF_NON_FUNCTION_EXPRESSION = const StaticTypeWarningCode.con1('INVOCATION_OF_NON_FUNCTION_EXPRESSION', 7, "Cannot invoke a non-function");
-
-  /**
-   * 12.20 Conditional: It is a static type warning if the type of <i>e<sub>1</sub></i> may not be
+   * <i>super.m(a<sub>1</sub>, &hellip;, a<sub>n</sub>, x<sub>n+1</sub>:
+   * a<sub>n+1</sub>, &hellip; x<sub>n+k</sub>: a<sub>n+k</sub>)</i>. If
+   * <i>S.m</i> exists, it is a static warning if the type <i>F</i> of
+   * <i>S.m</i> may not be assigned to a function type.
+   *
+   * @param nonFunctionIdentifier the name of the identifier that is not a
+   *        function type
+   */
+  static const StaticTypeWarningCode INVOCATION_OF_NON_FUNCTION = const StaticTypeWarningCode('INVOCATION_OF_NON_FUNCTION', "'{0}' is not a method");
+
+  /**
+   * 12.14.4 Function Expression Invocation: A function expression invocation
+   * <i>i</i> has the form <i>e<sub>f</sub>(a<sub>1</sub>, &hellip;,
+   * a<sub>n</sub>, x<sub>n+1</sub>: a<sub>n+1</sub>, &hellip;, x<sub>n+k</sub>:
+   * a<sub>n+k</sub>)</i>, where <i>e<sub>f</sub></i> is an expression.
+   *
+   * It is a static type warning if the static type <i>F</i> of
+   * <i>e<sub>f</sub></i> may not be assigned to a function type.
+   */
+  static const StaticTypeWarningCode INVOCATION_OF_NON_FUNCTION_EXPRESSION = const StaticTypeWarningCode('INVOCATION_OF_NON_FUNCTION_EXPRESSION', "Cannot invoke a non-function");
+
+  /**
+   * 12.20 Conditional: It is a static type warning if the type of
+   * <i>e<sub>1</sub></i> may not be assigned to bool.
+   *
+   * 13.5 If: It is a static type warning if the type of the expression <i>b</i>
+   * may not be assigned to bool.
+   *
+   * 13.7 While: It is a static type warning if the type of <i>e</i> may not be
    * assigned to bool.
    *
-   * 13.5 If: It is a static type warning if the type of the expression <i>b</i> may not be assigned
-   * to bool.
-   *
-   * 13.7 While: It is a static type warning if the type of <i>e</i> may not be assigned to bool.
-   *
-   * 13.8 Do: It is a static type warning if the type of <i>e</i> cannot be assigned to bool.
-   */
-  static const StaticTypeWarningCode NON_BOOL_CONDITION = const StaticTypeWarningCode.con1('NON_BOOL_CONDITION', 8, "Conditions must have a static type of 'bool'");
-
-  /**
-   * 13.15 Assert: It is a static type warning if the type of <i>e</i> may not be assigned to either
-   * bool or () &rarr; bool
-   */
-  static const StaticTypeWarningCode NON_BOOL_EXPRESSION = const StaticTypeWarningCode.con1('NON_BOOL_EXPRESSION', 9, "Assertions must be on either a 'bool' or '() -> bool'");
-
-  /**
-   * 12.28 Unary Expressions: The expression !<i>e</i> is equivalent to the expression
-   * <i>e</i>?<b>false<b> : <b>true</b>.
-   *
-   * 12.20 Conditional: It is a static type warning if the type of <i>e<sub>1</sub></i> may not be
+   * 13.8 Do: It is a static type warning if the type of <i>e</i> cannot be
    * assigned to bool.
    */
-  static const StaticTypeWarningCode NON_BOOL_NEGATION_EXPRESSION = const StaticTypeWarningCode.con1('NON_BOOL_NEGATION_EXPRESSION', 10, "Negation argument must have a static type of 'bool'");
-
-  /**
-   * 12.21 Logical Boolean Expressions: It is a static type warning if the static types of both of
-   * <i>e<sub>1</sub></i> and <i>e<sub>2</sub></i> may not be assigned to bool.
+  static const StaticTypeWarningCode NON_BOOL_CONDITION = const StaticTypeWarningCode('NON_BOOL_CONDITION', "Conditions must have a static type of 'bool'");
+
+  /**
+   * 13.15 Assert: It is a static type warning if the type of <i>e</i> may not
+   * be assigned to either bool or () &rarr; bool
+   */
+  static const StaticTypeWarningCode NON_BOOL_EXPRESSION = const StaticTypeWarningCode('NON_BOOL_EXPRESSION', "Assertions must be on either a 'bool' or '() -> bool'");
+
+  /**
+   * 12.28 Unary Expressions: The expression !<i>e</i> is equivalent to the
+   * expression <i>e</i>?<b>false<b> : <b>true</b>.
+   *
+   * 12.20 Conditional: It is a static type warning if the type of
+   * <i>e<sub>1</sub></i> may not be assigned to bool.
+   */
+  static const StaticTypeWarningCode NON_BOOL_NEGATION_EXPRESSION = const StaticTypeWarningCode('NON_BOOL_NEGATION_EXPRESSION', "Negation argument must have a static type of 'bool'");
+
+  /**
+   * 12.21 Logical Boolean Expressions: It is a static type warning if the
+   * static types of both of <i>e<sub>1</sub></i> and <i>e<sub>2</sub></i> may
+   * not be assigned to bool.
    *
    * @param operator the lexeme of the logical operator
    */
-  static const StaticTypeWarningCode NON_BOOL_OPERAND = const StaticTypeWarningCode.con1('NON_BOOL_OPERAND', 11, "The operands of the '{0}' operator must be assignable to 'bool'");
-
-  /**
-   * 15.8 Parameterized Types: It is a static type warning if <i>A<sub>i</sub>, 1 &lt;= i &lt;=
-   * n</i> does not denote a type in the enclosing lexical scope.
-   */
-  static const StaticTypeWarningCode NON_TYPE_AS_TYPE_ARGUMENT = const StaticTypeWarningCode.con1('NON_TYPE_AS_TYPE_ARGUMENT', 12, "The name '{0}' is not a type and cannot be used as a parameterized type");
-
-  /**
-   * 13.11 Return: It is a static type warning if the type of <i>e</i> may not be assigned to the
-   * declared return type of the immediately enclosing function.
+  static const StaticTypeWarningCode NON_BOOL_OPERAND = const StaticTypeWarningCode('NON_BOOL_OPERAND', "The operands of the '{0}' operator must be assignable to 'bool'");
+
+  /**
+   * 15.8 Parameterized Types: It is a static type warning if <i>A<sub>i</sub>,
+   * 1 &lt;= i &lt;= n</i> does not denote a type in the enclosing lexical scope.
+   */
+  static const StaticTypeWarningCode NON_TYPE_AS_TYPE_ARGUMENT = const StaticTypeWarningCode('NON_TYPE_AS_TYPE_ARGUMENT', "The name '{0}' is not a type and cannot be used as a parameterized type");
+
+  /**
+   * 13.11 Return: It is a static type warning if the type of <i>e</i> may not
+   * be assigned to the declared return type of the immediately enclosing
+   * function.
    *
    * @param actualReturnType the return type as declared in the return statement
    * @param expectedReturnType the expected return type as defined by the method
    * @param methodName the name of the method
    */
-  static const StaticTypeWarningCode RETURN_OF_INVALID_TYPE = const StaticTypeWarningCode.con1('RETURN_OF_INVALID_TYPE', 13, "The return type '{0}' is not a '{1}', as defined by the method '{2}'");
-
-  /**
-   * 12.11 Instance Creation: It is a static type warning if any of the type arguments to a
-   * constructor of a generic type <i>G</i> invoked by a new expression or a constant object
-   * expression are not subtypes of the bounds of the corresponding formal type parameters of
-   * <i>G</i>.
-   *
-   * 15.8 Parameterized Types: If <i>S</i> is the static type of a member <i>m</i> of <i>G</i>, then
-   * the static type of the member <i>m</i> of <i>G&lt;A<sub>1</sub>, &hellip;,
-   * A<sub>n</sub>&gt;</i> is <i>[A<sub>1</sub>, &hellip;, A<sub>n</sub>/T<sub>1</sub>, &hellip;,
-   * T<sub>n</sub>]S</i> where <i>T<sub>1</sub>, &hellip;, T<sub>n</sub></i> are the formal type
-   * parameters of <i>G</i>. Let <i>B<sub>i</sub></i> be the bounds of <i>T<sub>i</sub>, 1 &lt;= i
-   * &lt;= n</i>. It is a static type warning if <i>A<sub>i</sub></i> is not a subtype of
-   * <i>[A<sub>1</sub>, &hellip;, A<sub>n</sub>/T<sub>1</sub>, &hellip;,
-   * T<sub>n</sub>]B<sub>i</sub>, 1 &lt;= i &lt;= n</i>.
-   *
-   * 7.6.2 Factories: It is a static type warning if any of the type arguments to <i>k'</i> are not
-   * subtypes of the bounds of the corresponding formal type parameters of type.
-   *
-   * @param boundedTypeName the name of the type used in the instance creation that should be
-   *          limited by the bound as specified in the class declaration
+  static const StaticTypeWarningCode RETURN_OF_INVALID_TYPE = const StaticTypeWarningCode('RETURN_OF_INVALID_TYPE', "The return type '{0}' is not a '{1}', as defined by the method '{2}'");
+
+  /**
+   * 12.11 Instance Creation: It is a static type warning if any of the type
+   * arguments to a constructor of a generic type <i>G</i> invoked by a new
+   * expression or a constant object expression are not subtypes of the bounds
+   * of the corresponding formal type parameters of <i>G</i>.
+   *
+   * 15.8 Parameterized Types: If <i>S</i> is the static type of a member
+   * <i>m</i> of <i>G</i>, then the static type of the member <i>m</i> of
+   * <i>G&lt;A<sub>1</sub>, &hellip;, A<sub>n</sub>&gt;</i> is <i>[A<sub>1</sub>,
+   * &hellip;, A<sub>n</sub>/T<sub>1</sub>, &hellip;, T<sub>n</sub>]S</i> where
+   * <i>T<sub>1</sub>, &hellip;, T<sub>n</sub></i> are the formal type
+   * parameters of <i>G</i>. Let <i>B<sub>i</sub></i> be the bounds of
+   * <i>T<sub>i</sub>, 1 &lt;= i &lt;= n</i>. It is a static type warning if
+   * <i>A<sub>i</sub></i> is not a subtype of <i>[A<sub>1</sub>, &hellip;,
+   * A<sub>n</sub>/T<sub>1</sub>, &hellip;, T<sub>n</sub>]B<sub>i</sub>, 1 &lt;=
+   * i &lt;= n</i>.
+   *
+   * 7.6.2 Factories: It is a static type warning if any of the type arguments
+   * to <i>k'</i> are not subtypes of the bounds of the corresponding formal
+   * type parameters of type.
+   *
+   * @param boundedTypeName the name of the type used in the instance creation
+   *        that should be limited by the bound as specified in the class
+   *        declaration
    * @param boundingTypeName the name of the bounding type
-   * @see #TYPE_PARAMETER_SUPERTYPE_OF_ITS_BOUND
-   */
-  static const StaticTypeWarningCode TYPE_ARGUMENT_NOT_MATCHING_BOUNDS = const StaticTypeWarningCode.con1('TYPE_ARGUMENT_NOT_MATCHING_BOUNDS', 14, "'{0}' does not extend '{1}'");
-
-  /**
-   * 10 Generics: It is a static type warning if a type parameter is a supertype of its upper bound.
+   * @see [TYPE_PARAMETER_SUPERTYPE_OF_ITS_BOUND]
+   */
+  static const StaticTypeWarningCode TYPE_ARGUMENT_NOT_MATCHING_BOUNDS = const StaticTypeWarningCode('TYPE_ARGUMENT_NOT_MATCHING_BOUNDS', "'{0}' does not extend '{1}'");
+
+  /**
+   * 10 Generics: It is a static type warning if a type parameter is a supertype
+   * of its upper bound.
    *
    * @param typeParameterName the name of the type parameter
-   * @see #TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-   */
-  static const StaticTypeWarningCode TYPE_PARAMETER_SUPERTYPE_OF_ITS_BOUND = const StaticTypeWarningCode.con1('TYPE_PARAMETER_SUPERTYPE_OF_ITS_BOUND', 15, "'{0}' cannot be a supertype of its upper bound");
-
-  /**
-   * 12.17 Getter Invocation: It is a static warning if there is no class <i>C</i> in the enclosing
-   * lexical scope of <i>i</i>, or if <i>C</i> does not declare, implicitly or explicitly, a getter
+   * @see [TYPE_ARGUMENT_NOT_MATCHING_BOUNDS]
+   */
+  static const StaticTypeWarningCode TYPE_PARAMETER_SUPERTYPE_OF_ITS_BOUND = const StaticTypeWarningCode('TYPE_PARAMETER_SUPERTYPE_OF_ITS_BOUND', "'{0}' cannot be a supertype of its upper bound");
+
+  /**
+   * 12.17 Getter Invocation: It is a static warning if there is no class
+   * <i>C</i> in the enclosing lexical scope of <i>i</i>, or if <i>C</i> does
+   * not declare, implicitly or explicitly, a getter named <i>m</i>.
+   *
+   * @param constantName the name of the enumeration constant that is not
+   *        defined
+   * @param enumName the name of the enumeration used to access the constant
+   */
+  static const StaticTypeWarningCode UNDEFINED_ENUM_CONSTANT = const StaticTypeWarningCode('UNDEFINED_ENUM_CONSTANT', "There is no constant named '{0}' in '{1}'");
+
+  /**
+   * 12.15.3 Unqualified Invocation: If there exists a lexically visible
+   * declaration named <i>id</i>, let <i>f<sub>id</sub></i> be the innermost
+   * such declaration. Then: [skip]. Otherwise, <i>f<sub>id</sub></i> is
+   * considered equivalent to the ordinary method invocation
+   * <b>this</b>.<i>id</i>(<i>a<sub>1</sub></i>, ..., <i>a<sub>n</sub></i>,
+   * <i>x<sub>n+1</sub></i> : <i>a<sub>n+1</sub></i>, ...,
+   * <i>x<sub>n+k</sub></i> : <i>a<sub>n+k</sub></i>).
+   *
+   * @param methodName the name of the method that is undefined
+   */
+  static const StaticTypeWarningCode UNDEFINED_FUNCTION = const StaticTypeWarningCode('UNDEFINED_FUNCTION', "The function '{0}' is not defined");
+
+  /**
+   * 12.17 Getter Invocation: Let <i>T</i> be the static type of <i>e</i>. It is
+   * a static type warning if <i>T</i> does not have a getter named <i>m</i>.
+   *
+   * @param getterName the name of the getter
+   * @param enclosingType the name of the enclosing type where the getter is
+   *        being looked for
+   */
+  static const StaticTypeWarningCode UNDEFINED_GETTER = const StaticTypeWarningCode('UNDEFINED_GETTER', "There is no such getter '{0}' in '{1}'");
+
+  /**
+   * 12.15.1 Ordinary Invocation: Let <i>T</i> be the static type of <i>o</i>.
+   * It is a static type warning if <i>T</i> does not have an accessible
+   * instance member named <i>m</i>.
+   *
+   * @param methodName the name of the method that is undefined
+   * @param typeName the resolved type name that the method lookup is happening
+   *        on
+   */
+  static const StaticTypeWarningCode UNDEFINED_METHOD = const StaticTypeWarningCode('UNDEFINED_METHOD', "The method '{0}' is not defined for the class '{1}'");
+
+  /**
+   * 12.18 Assignment: Evaluation of an assignment of the form
+   * <i>e<sub>1</sub></i>[<i>e<sub>2</sub></i>] = <i>e<sub>3</sub></i> is
+   * equivalent to the evaluation of the expression (a, i, e){a.[]=(i, e);
+   * return e;} (<i>e<sub>1</sub></i>, <i>e<sub>2</sub></i>,
+   * <i>e<sub>2</sub></i>).
+   *
+   * 12.29 Assignable Expressions: An assignable expression of the form
+   * <i>e<sub>1</sub></i>[<i>e<sub>2</sub></i>] is evaluated as a method
+   * invocation of the operator method [] on <i>e<sub>1</sub></i> with argument
+   * <i>e<sub>2</sub></i>.
+   *
+   * 12.15.1 Ordinary Invocation: Let <i>T</i> be the static type of <i>o</i>.
+   * It is a static type warning if <i>T</i> does not have an accessible
+   * instance member named <i>m</i>.
+   *
+   * @param operator the name of the operator
+   * @param enclosingType the name of the enclosing type where the operator is
+   *        being looked for
+   */
+  static const StaticTypeWarningCode UNDEFINED_OPERATOR = const StaticTypeWarningCode('UNDEFINED_OPERATOR', "There is no such operator '{0}' in '{1}'");
+
+  /**
+   * 12.18 Assignment: Let <i>T</i> be the static type of <i>e<sub>1</sub></i>.
+   * It is a static type warning if <i>T</i> does not have an accessible
+   * instance setter named <i>v=</i>.
+   *
+   * @param setterName the name of the setter
+   * @param enclosingType the name of the enclosing type where the setter is
+   *        being looked for
+   * @see [INACCESSIBLE_SETTER]
+   */
+  static const StaticTypeWarningCode UNDEFINED_SETTER = const StaticTypeWarningCode('UNDEFINED_SETTER', "There is no such setter '{0}' in '{1}'");
+
+  /**
+   * 12.15.4 Super Invocation: A super method invocation <i>i</i> has the form
+   * <i>super.m(a<sub>1</sub>, &hellip;, a<sub>n</sub>, x<sub>n+1</sub>:
+   * a<sub>n+1</sub>, &hellip; x<sub>n+k</sub>: a<sub>n+k</sub>)</i>. It is a
+   * static type warning if <i>S</i> does not have an accessible instance member
    * named <i>m</i>.
    *
-   * @param constantName the name of the enumeration constant that is not defined
-   * @param enumName the name of the enumeration used to access the constant
-   */
-  static const StaticTypeWarningCode UNDEFINED_ENUM_CONSTANT = const StaticTypeWarningCode.con1('UNDEFINED_ENUM_CONSTANT', 16, "There is no constant named '{0}' in '{1}'");
-
-  /**
-   * 12.15.3 Unqualified Invocation: If there exists a lexically visible declaration named
-   * <i>id</i>, let <i>f<sub>id</sub></i> be the innermost such declaration. Then: [skip].
-   * Otherwise, <i>f<sub>id</sub></i> is considered equivalent to the ordinary method invocation
-   * <b>this</b>.<i>id</i>(<i>a<sub>1</sub></i>, ..., <i>a<sub>n</sub></i>, <i>x<sub>n+1</sub></i> :
-   * <i>a<sub>n+1</sub></i>, ..., <i>x<sub>n+k</sub></i> : <i>a<sub>n+k</sub></i>).
-   *
    * @param methodName the name of the method that is undefined
-   */
-  static const StaticTypeWarningCode UNDEFINED_FUNCTION = const StaticTypeWarningCode.con1('UNDEFINED_FUNCTION', 17, "The function '{0}' is not defined");
-
-  /**
-   * 12.17 Getter Invocation: Let <i>T</i> be the static type of <i>e</i>. It is a static type
-   * warning if <i>T</i> does not have a getter named <i>m</i>.
-   *
-   * @param getterName the name of the getter
-   * @param enclosingType the name of the enclosing type where the getter is being looked for
-   */
-  static const StaticTypeWarningCode UNDEFINED_GETTER = const StaticTypeWarningCode.con1('UNDEFINED_GETTER', 18, "There is no such getter '{0}' in '{1}'");
-
-  /**
-   * 12.15.1 Ordinary Invocation: Let <i>T</i> be the static type of <i>o</i>. It is a static type
-   * warning if <i>T</i> does not have an accessible instance member named <i>m</i>.
-   *
-   * @param methodName the name of the method that is undefined
-   * @param typeName the resolved type name that the method lookup is happening on
-   */
-  static const StaticTypeWarningCode UNDEFINED_METHOD = const StaticTypeWarningCode.con1('UNDEFINED_METHOD', 19, "The method '{0}' is not defined for the class '{1}'");
-
-  /**
-   * 12.18 Assignment: Evaluation of an assignment of the form
-   * <i>e<sub>1</sub></i>[<i>e<sub>2</sub></i>] = <i>e<sub>3</sub></i> is equivalent to the
-   * evaluation of the expression (a, i, e){a.[]=(i, e); return e;} (<i>e<sub>1</sub></i>,
-   * <i>e<sub>2</sub></i>, <i>e<sub>2</sub></i>).
-   *
-   * 12.29 Assignable Expressions: An assignable expression of the form
-   * <i>e<sub>1</sub></i>[<i>e<sub>2</sub></i>] is evaluated as a method invocation of the operator
-   * method [] on <i>e<sub>1</sub></i> with argument <i>e<sub>2</sub></i>.
-   *
-   * 12.15.1 Ordinary Invocation: Let <i>T</i> be the static type of <i>o</i>. It is a static type
-   * warning if <i>T</i> does not have an accessible instance member named <i>m</i>.
-   *
-   * @param operator the name of the operator
-   * @param enclosingType the name of the enclosing type where the operator is being looked for
-   */
-  static const StaticTypeWarningCode UNDEFINED_OPERATOR = const StaticTypeWarningCode.con1('UNDEFINED_OPERATOR', 20, "There is no such operator '{0}' in '{1}'");
-
-  /**
-   * 12.18 Assignment: Let <i>T</i> be the static type of <i>e<sub>1</sub></i>. It is a static type
-   * warning if <i>T</i> does not have an accessible instance setter named <i>v=</i>.
-   *
-   * @param setterName the name of the setter
-   * @param enclosingType the name of the enclosing type where the setter is being looked for
-   * @see #INACCESSIBLE_SETTER
-   */
-  static const StaticTypeWarningCode UNDEFINED_SETTER = const StaticTypeWarningCode.con1('UNDEFINED_SETTER', 21, "There is no such setter '{0}' in '{1}'");
-
-  /**
-   * 12.15.4 Super Invocation: A super method invocation <i>i</i> has the form
-   * <i>super.m(a<sub>1</sub>, &hellip;, a<sub>n</sub>, x<sub>n+1</sub>: a<sub>n+1</sub>, &hellip;
-   * x<sub>n+k</sub>: a<sub>n+k</sub>)</i>. It is a static type warning if <i>S</i> does not have an
-   * accessible instance member named <i>m</i>.
-   *
-   * @param methodName the name of the method that is undefined
-   * @param typeName the resolved type name that the method lookup is happening on
-   */
-  static const StaticTypeWarningCode UNDEFINED_SUPER_METHOD = const StaticTypeWarningCode.con1('UNDEFINED_SUPER_METHOD', 22, "There is no such method '{0}' in '{1}'");
-
-  /**
-   * 12.15.1 Ordinary Invocation: It is a static type warning if <i>T</i> does not have an
-   * accessible (3.2) instance member named <i>m</i>.
-   *
-   * This is a specialization of [INSTANCE_ACCESS_TO_STATIC_MEMBER] that is used when we are
-   * able to find the name defined in a supertype. It exists to provide a more informative error
-   * message.
-   */
-  static const StaticTypeWarningCode UNQUALIFIED_REFERENCE_TO_NON_LOCAL_STATIC_MEMBER = const StaticTypeWarningCode.con1('UNQUALIFIED_REFERENCE_TO_NON_LOCAL_STATIC_MEMBER', 23, "Static members from supertypes must be qualified by the name of the defining type");
-
-  /**
-   * 15.8 Parameterized Types: It is a static type warning if <i>G</i> is not a generic type with
-   * exactly <i>n</i> type parameters.
+   * @param typeName the resolved type name that the method lookup is happening
+   *        on
+   */
+  static const StaticTypeWarningCode UNDEFINED_SUPER_METHOD = const StaticTypeWarningCode('UNDEFINED_SUPER_METHOD', "There is no such method '{0}' in '{1}'");
+
+  /**
+   * 12.15.1 Ordinary Invocation: It is a static type warning if <i>T</i> does
+   * not have an accessible (3.2) instance member named <i>m</i>.
+   *
+   * This is a specialization of [INSTANCE_ACCESS_TO_STATIC_MEMBER] that is used
+   * when we are able to find the name defined in a supertype. It exists to
+   * provide a more informative error message.
+   */
+  static const StaticTypeWarningCode UNQUALIFIED_REFERENCE_TO_NON_LOCAL_STATIC_MEMBER = const StaticTypeWarningCode('UNQUALIFIED_REFERENCE_TO_NON_LOCAL_STATIC_MEMBER', "Static members from supertypes must be qualified by the name of the defining type");
+
+  /**
+   * 15.8 Parameterized Types: It is a static type warning if <i>G</i> is not a
+   * generic type with exactly <i>n</i> type parameters.
    *
    * @param typeName the name of the type being referenced (<i>G</i>)
    * @param parameterCount the number of type parameters that were declared
    * @param argumentCount the number of type arguments provided
-   * @see CompileTimeErrorCode#CONST_WITH_INVALID_TYPE_PARAMETERS
-   * @see CompileTimeErrorCode#NEW_WITH_INVALID_TYPE_PARAMETERS
-   */
-  static const StaticTypeWarningCode WRONG_NUMBER_OF_TYPE_ARGUMENTS = const StaticTypeWarningCode.con1('WRONG_NUMBER_OF_TYPE_ARGUMENTS', 24, "The type '{0}' is declared with {1} type parameters, but {2} type arguments were given");
-
-  static const List<StaticTypeWarningCode> values = const [
-      EXPECTED_ONE_LIST_TYPE_ARGUMENTS,
-      EXPECTED_TWO_MAP_TYPE_ARGUMENTS,
-      INACCESSIBLE_SETTER,
-      INCONSISTENT_METHOD_INHERITANCE,
-      INSTANCE_ACCESS_TO_STATIC_MEMBER,
-      INVALID_ASSIGNMENT,
-      INVOCATION_OF_NON_FUNCTION,
-      INVOCATION_OF_NON_FUNCTION_EXPRESSION,
-      NON_BOOL_CONDITION,
-      NON_BOOL_EXPRESSION,
-      NON_BOOL_NEGATION_EXPRESSION,
-      NON_BOOL_OPERAND,
-      NON_TYPE_AS_TYPE_ARGUMENT,
-      RETURN_OF_INVALID_TYPE,
-      TYPE_ARGUMENT_NOT_MATCHING_BOUNDS,
-      TYPE_PARAMETER_SUPERTYPE_OF_ITS_BOUND,
-      UNDEFINED_ENUM_CONSTANT,
-      UNDEFINED_FUNCTION,
-      UNDEFINED_GETTER,
-      UNDEFINED_METHOD,
-      UNDEFINED_OPERATOR,
-      UNDEFINED_SETTER,
-      UNDEFINED_SUPER_METHOD,
-      UNQUALIFIED_REFERENCE_TO_NON_LOCAL_STATIC_MEMBER,
-      WRONG_NUMBER_OF_TYPE_ARGUMENTS];
-
-  /**
-   * The template used to create the message to be displayed for this error.
-   */
-  final String message;
-
-  /**
-   * The template used to create the correction to be displayed for this error, or `null` if
-   * there is no correction information for this error.
-   */
-  final String correction;
-
-  /**
-   * Initialize a newly created error code to have the given message.
-   *
-   * @param message the message template used to create the message to be displayed for the error
-   */
-  const StaticTypeWarningCode.con1(String name, int ordinal, String message) : this.con2(name, ordinal, message, null);
-
-  /**
-   * Initialize a newly created error code to have the given message and correction.
-   *
-   * @param message the template used to create the message to be displayed for the error
-   * @param correction the template used to create the correction to be displayed for the error
-   */
-  const StaticTypeWarningCode.con2(String name, int ordinal, this.message, this.correction) : super(name, ordinal);
+   * @see [CompileTimeErrorCode.CONST_WITH_INVALID_TYPE_PARAMETERS]
+   * @see [CompileTimeErrorCode.NEW_WITH_INVALID_TYPE_PARAMETERS]
+   */
+  static const StaticTypeWarningCode WRONG_NUMBER_OF_TYPE_ARGUMENTS = const StaticTypeWarningCode('WRONG_NUMBER_OF_TYPE_ARGUMENTS', "The type '{0}' is declared with {1} type parameters, but {2} type arguments were given");
+
+  /**
+   * Initialize a newly created error code to have the given [name]. The message
+   * associated with the error will be created from the given [message]
+   * template. The correction associated with the error will be created from the
+   * given [correction] template.
+   */
+  const StaticTypeWarningCode(String name, String message, [String correction]) : super(name, message, correction);
 
   @override
   ErrorSeverity get errorSeverity => ErrorType.STATIC_TYPE_WARNING.severity;
 
   @override
   ErrorType get type => ErrorType.STATIC_TYPE_WARNING;
-
-  @override
-  String get uniqueName => "$runtimeType.$name";
 }
 
 /**
- * The enumeration `StaticWarningCode` defines the error codes used for static warnings. The
- * convention for this class is for the name of the error code to indicate the problem that caused
- * the error to be generated and for the error message to explain what is wrong and, when
- * appropriate, how the problem can be corrected.
+ * The enumeration `StaticWarningCode` defines the error codes used for static
+ * warnings. The convention for this class is for the name of the error code to
+ * indicate the problem that caused the error to be generated and for the error
+ * message to explain what is wrong and, when appropriate, how the problem can
+ * be corrected.
  */
-class StaticWarningCode extends Enum<StaticWarningCode> implements ErrorCode {
-  /**
-   * 14.1 Imports: If a name <i>N</i> is referenced by a library <i>L</i> and <i>N</i> is introduced
-   * into the top level scope <i>L</i> by more than one import then:
-   * <ol>
-   * * A static warning occurs.
-   * * If <i>N</i> is referenced as a function, getter or setter, a <i>NoSuchMethodError</i> is
-   * raised.
-   * * If <i>N</i> is referenced as a type, it is treated as a malformed type.
-   * </ol>
+class StaticWarningCode extends ErrorCode {
+  /**
+   * 14.1 Imports: If a name <i>N</i> is referenced by a library <i>L</i> and
+   * <i>N</i> is introduced into the top level scope <i>L</i> by more than one
+   * import then:
+   * 1. A static warning occurs.
+   * 2. If <i>N</i> is referenced as a function, getter or setter, a
+   *    <i>NoSuchMethodError</i> is raised.
+   * 3. If <i>N</i> is referenced as a type, it is treated as a malformed type.
    *
    * @param ambiguousTypeName the name of the ambiguous type
-   * @param firstLibraryName the name of the first library that the type is found
-   * @param secondLibraryName the name of the second library that the type is found
-   */
-  static const StaticWarningCode AMBIGUOUS_IMPORT = const StaticWarningCode.con1('AMBIGUOUS_IMPORT', 0, "The name '{0}' is defined in the libraries {1}");
-
-  /**
-   * 12.11.1 New: It is a static warning if the static type of <i>a<sub>i</sub>, 1 &lt;= i &lt;= n+
-   * k</i> may not be assigned to the type of the corresponding formal parameter of the constructor
-   * <i>T.id</i> (respectively <i>T</i>).
-   *
-   * 12.11.2 Const: It is a static warning if the static type of <i>a<sub>i</sub>, 1 &lt;= i &lt;=
-   * n+ k</i> may not be assigned to the type of the corresponding formal parameter of the
-   * constructor <i>T.id</i> (respectively <i>T</i>).
-   *
-   * 12.14.2 Binding Actuals to Formals: Let <i>T<sub>i</sub></i> be the static type of
-   * <i>a<sub>i</sub></i>, let <i>S<sub>i</sub></i> be the type of <i>p<sub>i</sub>, 1 &lt;= i &lt;=
-   * n+k</i> and let <i>S<sub>q</sub></i> be the type of the named parameter <i>q</i> of <i>f</i>.
-   * It is a static warning if <i>T<sub>j</sub></i> may not be assigned to <i>S<sub>j</sub>, 1 &lt;=
-   * j &lt;= m</i>.
-   *
-   * 12.14.2 Binding Actuals to Formals: Furthermore, each <i>q<sub>i</sub>, 1 &lt;= i &lt;= l</i>,
-   * must have a corresponding named parameter in the set <i>{p<sub>n+1</sub>, &hellip;
-   * p<sub>n+k</sub>}</i> or a static warning occurs. It is a static warning if
-   * <i>T<sub>m+j</sub></i> may not be assigned to <i>S<sub>r</sub></i>, where <i>r = q<sub>j</sub>,
-   * 1 &lt;= j &lt;= l</i>.
+   * @param firstLibraryName the name of the first library that the type is
+   *        found
+   * @param secondLibraryName the name of the second library that the type is
+   *        found
+   */
+  static const StaticWarningCode AMBIGUOUS_IMPORT = const StaticWarningCode('AMBIGUOUS_IMPORT', "The name '{0}' is defined in the libraries {1}");
+
+  /**
+   * 12.11.1 New: It is a static warning if the static type of <i>a<sub>i</sub>,
+   * 1 &lt;= i &lt;= n+ k</i> may not be assigned to the type of the
+   * corresponding formal parameter of the constructor <i>T.id</i> (respectively
+   * <i>T</i>).
+   *
+   * 12.11.2 Const: It is a static warning if the static type of
+   * <i>a<sub>i</sub>, 1 &lt;= i &lt;= n+ k</i> may not be assigned to the type
+   * of the corresponding formal parameter of the constructor <i>T.id</i>
+   * (respectively <i>T</i>).
+   *
+   * 12.14.2 Binding Actuals to Formals: Let <i>T<sub>i</sub></i> be the static
+   * type of <i>a<sub>i</sub></i>, let <i>S<sub>i</sub></i> be the type of
+   * <i>p<sub>i</sub>, 1 &lt;= i &lt;= n+k</i> and let <i>S<sub>q</sub></i> be
+   * the type of the named parameter <i>q</i> of <i>f</i>. It is a static
+   * warning if <i>T<sub>j</sub></i> may not be assigned to <i>S<sub>j</sub>, 1
+   * &lt;= j &lt;= m</i>.
+   *
+   * 12.14.2 Binding Actuals to Formals: Furthermore, each <i>q<sub>i</sub>, 1
+   * &lt;= i &lt;= l</i>, must have a corresponding named parameter in the set
+   * <i>{p<sub>n+1</sub>, &hellip; p<sub>n+k</sub>}</i> or a static warning
+   * occurs. It is a static warning if <i>T<sub>m+j</sub></i> may not be
+   * assigned to <i>S<sub>r</sub></i>, where <i>r = q<sub>j</sub>, 1 &lt;= j
+   * &lt;= l</i>.
    *
    * @param actualType the name of the actual argument type
    * @param expectedType the name of the expected type
    */
-  static const StaticWarningCode ARGUMENT_TYPE_NOT_ASSIGNABLE = const StaticWarningCode.con1('ARGUMENT_TYPE_NOT_ASSIGNABLE', 1, "The argument type '{0}' cannot be assigned to the parameter type '{1}'");
-
-  /**
-   * 5 Variables: Attempting to assign to a final variable elsewhere will cause a NoSuchMethodError
-   * to be thrown, because no setter is defined for it. The assignment will also give rise to a
-   * static warning for the same reason.
+  static const StaticWarningCode ARGUMENT_TYPE_NOT_ASSIGNABLE = const StaticWarningCode('ARGUMENT_TYPE_NOT_ASSIGNABLE', "The argument type '{0}' cannot be assigned to the parameter type '{1}'");
+
+  /**
+   * 5 Variables: Attempting to assign to a final variable elsewhere will cause
+   * a NoSuchMethodError to be thrown, because no setter is defined for it. The
+   * assignment will also give rise to a static warning for the same reason.
    *
    * A constant variable is always implicitly final.
    */
-  static const StaticWarningCode ASSIGNMENT_TO_CONST = const StaticWarningCode.con1('ASSIGNMENT_TO_CONST', 2, "Constant variables cannot be assigned a value");
-
-  /**
-   * 5 Variables: Attempting to assign to a final variable elsewhere will cause a NoSuchMethodError
-   * to be thrown, because no setter is defined for it. The assignment will also give rise to a
-   * static warning for the same reason.
-   */
-  static const StaticWarningCode ASSIGNMENT_TO_FINAL = const StaticWarningCode.con1('ASSIGNMENT_TO_FINAL', 3, "'{0}' cannot be used as a setter, it is final");
-
-  /**
-   * 5 Variables: Attempting to assign to a final variable elsewhere will cause a NoSuchMethodError
-   * to be thrown, because no setter is defined for it. The assignment will also give rise to a
-   * static warning for the same reason.
-   */
-  static const StaticWarningCode ASSIGNMENT_TO_FINAL_NO_SETTER = const StaticWarningCode.con1('ASSIGNMENT_TO_FINAL_NO_SETTER', 4, "No setter named '{0}' in class '{1}'");
-
-  /**
-   * 12.18 Assignment: It is as static warning if an assignment of the form <i>v = e</i> occurs
-   * inside a top level or static function (be it function, method, getter, or setter) or variable
-   * initializer and there is neither a local variable declaration with name <i>v</i> nor setter
-   * declaration with name <i>v=</i> in the lexical scope enclosing the assignment.
-   */
-  static const StaticWarningCode ASSIGNMENT_TO_FUNCTION = const StaticWarningCode.con1('ASSIGNMENT_TO_FUNCTION', 5, "Functions cannot be assigned a value");
-
-  /**
-   * 12.18 Assignment: Let <i>T</i> be the static type of <i>e<sub>1</sub></i>. It is a static type
-   * warning if <i>T</i> does not have an accessible instance setter named <i>v=</i>.
-   */
-  static const StaticWarningCode ASSIGNMENT_TO_METHOD = const StaticWarningCode.con1('ASSIGNMENT_TO_METHOD', 6, "Methods cannot be assigned a value");
-
-  /**
-   * 13.9 Switch: It is a static warning if the last statement of the statement sequence
-   * <i>s<sub>k</sub></i> is not a break, continue, return or throw statement.
-   */
-  static const StaticWarningCode CASE_BLOCK_NOT_TERMINATED = const StaticWarningCode.con1('CASE_BLOCK_NOT_TERMINATED', 7, "The last statement of the 'case' should be 'break', 'continue', 'return' or 'throw'");
-
-  /**
-   * 12.32 Type Cast: It is a static warning if <i>T</i> does not denote a type available in the
-   * current lexical scope.
-   */
-  static const StaticWarningCode CAST_TO_NON_TYPE = const StaticWarningCode.con1('CAST_TO_NON_TYPE', 8, "The name '{0}' is not a type and cannot be used in an 'as' expression");
-
-  /**
-   * 7.4 Abstract Instance Members: It is a static warning if an abstract member is declared or
-   * inherited in a concrete class.
-   */
-  static const StaticWarningCode CONCRETE_CLASS_WITH_ABSTRACT_MEMBER = const StaticWarningCode.con1('CONCRETE_CLASS_WITH_ABSTRACT_MEMBER', 9, "'{0}' must have a method body because '{1}' is not abstract");
-
-  /**
-   * 14.1 Imports: If a name <i>N</i> is referenced by a library <i>L</i> and <i>N</i> would be
-   * introduced into the top level scope of <i>L</i> by an import from a library whose URI begins
-   * with <i>dart:</i> and an import from a library whose URI does not begin with <i>dart:</i>:
+  static const StaticWarningCode ASSIGNMENT_TO_CONST = const StaticWarningCode('ASSIGNMENT_TO_CONST', "Constant variables cannot be assigned a value");
+
+  /**
+   * 5 Variables: Attempting to assign to a final variable elsewhere will cause
+   * a NoSuchMethodError to be thrown, because no setter is defined for it. The
+   * assignment will also give rise to a static warning for the same reason.
+   */
+  static const StaticWarningCode ASSIGNMENT_TO_FINAL = const StaticWarningCode('ASSIGNMENT_TO_FINAL', "'{0}' cannot be used as a setter, it is final");
+
+  /**
+   * 5 Variables: Attempting to assign to a final variable elsewhere will cause
+   * a NoSuchMethodError to be thrown, because no setter is defined for it. The
+   * assignment will also give rise to a static warning for the same reason.
+   */
+  static const StaticWarningCode ASSIGNMENT_TO_FINAL_NO_SETTER = const StaticWarningCode('ASSIGNMENT_TO_FINAL_NO_SETTER', "No setter named '{0}' in class '{1}'");
+
+  /**
+   * 12.18 Assignment: It is as static warning if an assignment of the form
+   * <i>v = e</i> occurs inside a top level or static function (be it function,
+   * method, getter, or setter) or variable initializer and there is neither a
+   * local variable declaration with name <i>v</i> nor setter declaration with
+   * name <i>v=</i> in the lexical scope enclosing the assignment.
+   */
+  static const StaticWarningCode ASSIGNMENT_TO_FUNCTION = const StaticWarningCode('ASSIGNMENT_TO_FUNCTION', "Functions cannot be assigned a value");
+
+  /**
+   * 12.18 Assignment: Let <i>T</i> be the static type of <i>e<sub>1</sub></i>
+   * It is a static type warning if <i>T</i> does not have an accessible
+   * instance setter named <i>v=</i>.
+   */
+  static const StaticWarningCode ASSIGNMENT_TO_METHOD = const StaticWarningCode('ASSIGNMENT_TO_METHOD', "Methods cannot be assigned a value");
+
+  /**
+   * 13.9 Switch: It is a static warning if the last statement of the statement
+   * sequence <i>s<sub>k</sub></i> is not a break, continue, return or throw
+   * statement.
+   */
+  static const StaticWarningCode CASE_BLOCK_NOT_TERMINATED = const StaticWarningCode('CASE_BLOCK_NOT_TERMINATED', "The last statement of the 'case' should be 'break', 'continue', 'return' or 'throw'");
+
+  /**
+   * 12.32 Type Cast: It is a static warning if <i>T</i> does not denote a type
+   * available in the current lexical scope.
+   */
+  static const StaticWarningCode CAST_TO_NON_TYPE = const StaticWarningCode('CAST_TO_NON_TYPE', "The name '{0}' is not a type and cannot be used in an 'as' expression");
+
+  /**
+   * 7.4 Abstract Instance Members: It is a static warning if an abstract member
+   * is declared or inherited in a concrete class.
+   */
+  static const StaticWarningCode CONCRETE_CLASS_WITH_ABSTRACT_MEMBER = const StaticWarningCode('CONCRETE_CLASS_WITH_ABSTRACT_MEMBER', "'{0}' must have a method body because '{1}' is not abstract");
+
+  /**
+   * 14.1 Imports: If a name <i>N</i> is referenced by a library <i>L</i> and
+   * <i>N</i> would be introduced into the top level scope of <i>L</i> by an
+   * import from a library whose URI begins with <i>dart:</i> and an import from
+   * a library whose URI does not begin with <i>dart:</i>:
    * * The import from <i>dart:</i> is implicitly extended by a hide N clause.
    * * A static warning is issued.
    *
    * @param ambiguousName the ambiguous name
-   * @param sdkLibraryName the name of the dart: library that the element is found
-   * @param otherLibraryName the name of the non-dart: library that the element is found
-   */
-  static const StaticWarningCode CONFLICTING_DART_IMPORT = const StaticWarningCode.con1('CONFLICTING_DART_IMPORT', 10, "Element '{0}' from SDK library '{1}' is implicitly hidden by '{2}'");
-
-  /**
-   * 7.2 Getters: It is a static warning if a class <i>C</i> declares an instance getter named
-   * <i>v</i> and an accessible static member named <i>v</i> or <i>v=</i> is declared in a
-   * superclass of <i>C</i>.
+   * @param sdkLibraryName the name of the dart: library that the element is
+   *        found
+   * @param otherLibraryName the name of the non-dart: library that the element
+   *        is found
+   */
+  static const StaticWarningCode CONFLICTING_DART_IMPORT = const StaticWarningCode('CONFLICTING_DART_IMPORT', "Element '{0}' from SDK library '{1}' is implicitly hidden by '{2}'");
+
+  /**
+   * 7.2 Getters: It is a static warning if a class <i>C</i> declares an
+   * instance getter named <i>v</i> and an accessible static member named
+   * <i>v</i> or <i>v=</i> is declared in a superclass of <i>C</i>.
    *
    * @param superName the name of the super class declaring a static member
    */
-  static const StaticWarningCode CONFLICTING_INSTANCE_GETTER_AND_SUPERCLASS_MEMBER = const StaticWarningCode.con1('CONFLICTING_INSTANCE_GETTER_AND_SUPERCLASS_MEMBER', 11, "Superclass '{0}' declares static member with the same name");
-
-  /**
-   * 7.1 Instance Methods: It is a static warning if a class <i>C</i> declares an instance method
-   * named <i>n</i> and has a setter named <i>n=</i>.
-   */
-  static const StaticWarningCode CONFLICTING_INSTANCE_METHOD_SETTER = const StaticWarningCode.con1('CONFLICTING_INSTANCE_METHOD_SETTER', 12, "Class '{0}' declares instance method '{1}', but also has a setter with the same name from '{2}'");
-
-  /**
-   * 7.1 Instance Methods: It is a static warning if a class <i>C</i> declares an instance method
-   * named <i>n</i> and has a setter named <i>n=</i>.
-   */
-  static const StaticWarningCode CONFLICTING_INSTANCE_METHOD_SETTER2 = const StaticWarningCode.con1('CONFLICTING_INSTANCE_METHOD_SETTER2', 13, "Class '{0}' declares the setter '{1}', but also has an instance method in the same class");
-
-  /**
-   * 7.3 Setters: It is a static warning if a class <i>C</i> declares an instance setter named
-   * <i>v=</i> and an accessible static member named <i>v=</i> or <i>v</i> is declared in a
-   * superclass of <i>C</i>.
+  static const StaticWarningCode CONFLICTING_INSTANCE_GETTER_AND_SUPERCLASS_MEMBER = const StaticWarningCode('CONFLICTING_INSTANCE_GETTER_AND_SUPERCLASS_MEMBER', "Superclass '{0}' declares static member with the same name");
+
+  /**
+   * 7.1 Instance Methods: It is a static warning if a class <i>C</i> declares
+   * an instance method named <i>n</i> and has a setter named <i>n=</i>.
+   */
+  static const StaticWarningCode CONFLICTING_INSTANCE_METHOD_SETTER = const StaticWarningCode('CONFLICTING_INSTANCE_METHOD_SETTER', "Class '{0}' declares instance method '{1}', but also has a setter with the same name from '{2}'");
+
+  /**
+   * 7.1 Instance Methods: It is a static warning if a class <i>C</i> declares
+   * an instance method named <i>n</i> and has a setter named <i>n=</i>.
+   */
+  static const StaticWarningCode CONFLICTING_INSTANCE_METHOD_SETTER2 = const StaticWarningCode('CONFLICTING_INSTANCE_METHOD_SETTER2', "Class '{0}' declares the setter '{1}', but also has an instance method in the same class");
+
+  /**
+   * 7.3 Setters: It is a static warning if a class <i>C</i> declares an
+   * instance setter named <i>v=</i> and an accessible static member named
+   * <i>v=</i> or <i>v</i> is declared in a superclass of <i>C</i>.
    *
    * @param superName the name of the super class declaring a static member
    */
-  static const StaticWarningCode CONFLICTING_INSTANCE_SETTER_AND_SUPERCLASS_MEMBER = const StaticWarningCode.con1('CONFLICTING_INSTANCE_SETTER_AND_SUPERCLASS_MEMBER', 14, "Superclass '{0}' declares static member with the same name");
-
-  /**
-   * 7.2 Getters: It is a static warning if a class declares a static getter named <i>v</i> and also
-   * has a non-static setter named <i>v=</i>.
-   */
-  static const StaticWarningCode CONFLICTING_STATIC_GETTER_AND_INSTANCE_SETTER = const StaticWarningCode.con1('CONFLICTING_STATIC_GETTER_AND_INSTANCE_SETTER', 15, "Class '{0}' declares non-static setter with the same name");
-
-  /**
-   * 7.3 Setters: It is a static warning if a class declares a static setter named <i>v=</i> and
-   * also has a non-static member named <i>v</i>.
-   */
-  static const StaticWarningCode CONFLICTING_STATIC_SETTER_AND_INSTANCE_MEMBER = const StaticWarningCode.con1('CONFLICTING_STATIC_SETTER_AND_INSTANCE_MEMBER', 16, "Class '{0}' declares non-static member with the same name");
-
-  /**
-   * 12.11.2 Const: Given an instance creation expression of the form <i>const q(a<sub>1</sub>,
-   * &hellip; a<sub>n</sub>)</i> it is a static warning if <i>q</i> is the constructor of an
-   * abstract class but <i>q</i> is not a factory constructor.
-   */
-  static const StaticWarningCode CONST_WITH_ABSTRACT_CLASS = const StaticWarningCode.con1('CONST_WITH_ABSTRACT_CLASS', 17, "Abstract classes cannot be created with a 'const' expression");
-
-  /**
-   * 12.7 Maps: It is a static warning if the values of any two keys in a map literal are equal.
-   */
-  static const StaticWarningCode EQUAL_KEYS_IN_MAP = const StaticWarningCode.con1('EQUAL_KEYS_IN_MAP', 18, "Keys in a map cannot be equal");
-
-  /**
-   * 14.2 Exports: It is a static warning to export two different libraries with the same name.
+  static const StaticWarningCode CONFLICTING_INSTANCE_SETTER_AND_SUPERCLASS_MEMBER = const StaticWarningCode('CONFLICTING_INSTANCE_SETTER_AND_SUPERCLASS_MEMBER', "Superclass '{0}' declares static member with the same name");
+
+  /**
+   * 7.2 Getters: It is a static warning if a class declares a static getter
+   * named <i>v</i> and also has a non-static setter named <i>v=</i>.
+   */
+  static const StaticWarningCode CONFLICTING_STATIC_GETTER_AND_INSTANCE_SETTER = const StaticWarningCode('CONFLICTING_STATIC_GETTER_AND_INSTANCE_SETTER', "Class '{0}' declares non-static setter with the same name");
+
+  /**
+   * 7.3 Setters: It is a static warning if a class declares a static setter
+   * named <i>v=</i> and also has a non-static member named <i>v</i>.
+   */
+  static const StaticWarningCode CONFLICTING_STATIC_SETTER_AND_INSTANCE_MEMBER = const StaticWarningCode('CONFLICTING_STATIC_SETTER_AND_INSTANCE_MEMBER', "Class '{0}' declares non-static member with the same name");
+
+  /**
+   * 12.11.2 Const: Given an instance creation expression of the form <i>const
+   * q(a<sub>1</sub>, &hellip; a<sub>n</sub>)</i> it is a static warning if
+   * <i>q</i> is the constructor of an abstract class but <i>q</i> is not a
+   * factory constructor.
+   */
+  static const StaticWarningCode CONST_WITH_ABSTRACT_CLASS = const StaticWarningCode('CONST_WITH_ABSTRACT_CLASS', "Abstract classes cannot be created with a 'const' expression");
+
+  /**
+   * 12.7 Maps: It is a static warning if the values of any two keys in a map
+   * literal are equal.
+   */
+  static const StaticWarningCode EQUAL_KEYS_IN_MAP = const StaticWarningCode('EQUAL_KEYS_IN_MAP', "Keys in a map cannot be equal");
+
+  /**
+   * 14.2 Exports: It is a static warning to export two different libraries with
+   * the same name.
    *
    * @param uri1 the uri pointing to a first library
    * @param uri2 the uri pointing to a second library
    * @param name the shared name of the exported libraries
    */
-  static const StaticWarningCode EXPORT_DUPLICATED_LIBRARY_NAME = const StaticWarningCode.con1('EXPORT_DUPLICATED_LIBRARY_NAME', 19, "The exported libraries '{0}' and '{1}' should not have the same name '{2}'");
-
-  /**
-   * 12.14.2 Binding Actuals to Formals: It is a static warning if <i>m &lt; h</i> or if <i>m &gt;
-   * n</i>.
+  static const StaticWarningCode EXPORT_DUPLICATED_LIBRARY_NAME = const StaticWarningCode('EXPORT_DUPLICATED_LIBRARY_NAME', "The exported libraries '{0}' and '{1}' should not have the same name '{2}'");
+
+  /**
+   * 12.14.2 Binding Actuals to Formals: It is a static warning if <i>m &lt;
+   * h</i> or if <i>m &gt; n</i>.
    *
    * @param requiredCount the maximum number of positional arguments
    * @param argumentCount the actual number of positional arguments given
-   * @see #NOT_ENOUGH_REQUIRED_ARGUMENTS
-   */
-  static const StaticWarningCode EXTRA_POSITIONAL_ARGUMENTS = const StaticWarningCode.con1('EXTRA_POSITIONAL_ARGUMENTS', 20, "{0} positional arguments expected, but {1} found");
-
-  /**
-   * 5. Variables: It is a static warning if a final instance variable that has been initialized at
-   * its point of declaration is also initialized in a constructor.
-   */
-  static const StaticWarningCode FIELD_INITIALIZED_IN_INITIALIZER_AND_DECLARATION = const StaticWarningCode.con1('FIELD_INITIALIZED_IN_INITIALIZER_AND_DECLARATION', 21, "Values cannot be set in the constructor if they are final, and have already been set");
-
-  /**
-   * 5. Variables: It is a static warning if a final instance variable that has been initialized at
-   * its point of declaration is also initialized in a constructor.
+   * @see [NOT_ENOUGH_REQUIRED_ARGUMENTS]
+   */
+  static const StaticWarningCode EXTRA_POSITIONAL_ARGUMENTS = const StaticWarningCode('EXTRA_POSITIONAL_ARGUMENTS', "{0} positional arguments expected, but {1} found");
+
+  /**
+   * 5. Variables: It is a static warning if a final instance variable that has
+   * been initialized at its point of declaration is also initialized in a
+   * constructor.
+   */
+  static const StaticWarningCode FIELD_INITIALIZED_IN_INITIALIZER_AND_DECLARATION = const StaticWarningCode('FIELD_INITIALIZED_IN_INITIALIZER_AND_DECLARATION', "Values cannot be set in the constructor if they are final, and have already been set");
+
+  /**
+   * 5. Variables: It is a static warning if a final instance variable that has
+   * been initialized at its point of declaration is also initialized in a
+   * constructor.
    *
    * @param name the name of the field in question
    */
-  static const StaticWarningCode FINAL_INITIALIZED_IN_DECLARATION_AND_CONSTRUCTOR = const StaticWarningCode.con1('FINAL_INITIALIZED_IN_DECLARATION_AND_CONSTRUCTOR', 22, "'{0}' is final and was given a value when it was declared, so it cannot be set to a new value");
-
-  /**
-   * 7.6.1 Generative Constructors: Execution of an initializer of the form <b>this</b>.<i>v</i> =
-   * <i>e</i> proceeds as follows: First, the expression <i>e</i> is evaluated to an object
-   * <i>o</i>. Then, the instance variable <i>v</i> of the object denoted by this is bound to
-   * <i>o</i>.
-   *
-   * 12.14.2 Binding Actuals to Formals: Let <i>T<sub>i</sub></i> be the static type of
-   * <i>a<sub>i</sub></i>, let <i>S<sub>i</sub></i> be the type of <i>p<sub>i</sub>, 1 &lt;= i &lt;=
-   * n+k</i> and let <i>S<sub>q</sub></i> be the type of the named parameter <i>q</i> of <i>f</i>.
-   * It is a static warning if <i>T<sub>j</sub></i> may not be assigned to <i>S<sub>j</sub>, 1 &lt;=
-   * j &lt;= m</i>.
+  static const StaticWarningCode FINAL_INITIALIZED_IN_DECLARATION_AND_CONSTRUCTOR = const StaticWarningCode('FINAL_INITIALIZED_IN_DECLARATION_AND_CONSTRUCTOR', "'{0}' is final and was given a value when it was declared, so it cannot be set to a new value");
+
+  /**
+   * 7.6.1 Generative Constructors: Execution of an initializer of the form
+   * <b>this</b>.<i>v</i> = <i>e</i> proceeds as follows: First, the expression
+   * <i>e</i> is evaluated to an object <i>o</i>. Then, the instance variable
+   * <i>v</i> of the object denoted by this is bound to <i>o</i>.
+   *
+   * 12.14.2 Binding Actuals to Formals: Let <i>T<sub>i</sub></i> be the static
+   * type of <i>a<sub>i</sub></i>, let <i>S<sub>i</sub></i> be the type of
+   * <i>p<sub>i</sub>, 1 &lt;= i &lt;= n+k</i> and let <i>S<sub>q</sub></i> be
+   * the type of the named parameter <i>q</i> of <i>f</i>. It is a static
+   * warning if <i>T<sub>j</sub></i> may not be assigned to <i>S<sub>j</sub>, 1
+   * &lt;= j &lt;= m</i>.
    *
    * @param initializerType the name of the type of the initializer expression
    * @param fieldType the name of the type of the field
    */
-  static const StaticWarningCode FIELD_INITIALIZER_NOT_ASSIGNABLE = const StaticWarningCode.con1('FIELD_INITIALIZER_NOT_ASSIGNABLE', 23, "The initializer type '{0}' cannot be assigned to the field type '{1}'");
-
-  /**
-   * 7.6.1 Generative Constructors: An initializing formal has the form <i>this.id</i>. It is a
-   * static warning if the static type of <i>id</i> is not assignable to <i>T<sub>id</sub></i>.
+  static const StaticWarningCode FIELD_INITIALIZER_NOT_ASSIGNABLE = const StaticWarningCode('FIELD_INITIALIZER_NOT_ASSIGNABLE', "The initializer type '{0}' cannot be assigned to the field type '{1}'");
+
+  /**
+   * 7.6.1 Generative Constructors: An initializing formal has the form
+   * <i>this.id</i>. It is a static warning if the static type of <i>id</i> is
+   * not assignable to <i>T<sub>id</sub></i>.
    *
    * @param parameterType the name of the type of the field formal parameter
    * @param fieldType the name of the type of the field
    */
-  static const StaticWarningCode FIELD_INITIALIZING_FORMAL_NOT_ASSIGNABLE = const StaticWarningCode.con1('FIELD_INITIALIZING_FORMAL_NOT_ASSIGNABLE', 24, "The parameter type '{0}' is incompatable with the field type '{1}'");
-
-  /**
-   * 5 Variables: It is a static warning if a library, static or local variable <i>v</i> is final
-   * and <i>v</i> is not initialized at its point of declaration.
-   *
-   * 7.6.1 Generative Constructors: Each final instance variable <i>f</i> declared in the
-   * immediately enclosing class must have an initializer in <i>k</i>'s initializer list unless it
-   * has already been initialized by one of the following means:
+  static const StaticWarningCode FIELD_INITIALIZING_FORMAL_NOT_ASSIGNABLE = const StaticWarningCode('FIELD_INITIALIZING_FORMAL_NOT_ASSIGNABLE', "The parameter type '{0}' is incompatable with the field type '{1}'");
+
+  /**
+   * 5 Variables: It is a static warning if a library, static or local variable
+   * <i>v</i> is final and <i>v</i> is not initialized at its point of
+   * declaration.
+   *
+   * 7.6.1 Generative Constructors: Each final instance variable <i>f</i>
+   * declared in the immediately enclosing class must have an initializer in
+   * <i>k</i>'s initializer list unless it has already been initialized by one
+   * of the following means:
    * * Initialization at the declaration of <i>f</i>.
    * * Initialization by means of an initializing formal of <i>k</i>.
    * or a static warning occurs.
    *
    * @param name the name of the uninitialized final variable
    */
-  static const StaticWarningCode FINAL_NOT_INITIALIZED = const StaticWarningCode.con1('FINAL_NOT_INITIALIZED', 25, "The final variable '{0}' must be initialized");
-
-  /**
-   * 15.5 Function Types: It is a static warning if a concrete class implements Function and does
-   * not have a concrete method named call().
-   */
-  static const StaticWarningCode FUNCTION_WITHOUT_CALL = const StaticWarningCode.con1('FUNCTION_WITHOUT_CALL', 26, "Concrete classes that implement Function must implement the method call()");
-
-  /**
-   * 14.1 Imports: It is a static warning to import two different libraries with the same name.
+  static const StaticWarningCode FINAL_NOT_INITIALIZED = const StaticWarningCode('FINAL_NOT_INITIALIZED', "The final variable '{0}' must be initialized");
+
+  /**
+   * 15.5 Function Types: It is a static warning if a concrete class implements
+   * Function and does not have a concrete method named call().
+   */
+  static const StaticWarningCode FUNCTION_WITHOUT_CALL = const StaticWarningCode('FUNCTION_WITHOUT_CALL', "Concrete classes that implement Function must implement the method call()");
+
+  /**
+   * 14.1 Imports: It is a static warning to import two different libraries with
+   * the same name.
    *
    * @param uri1 the uri pointing to a first library
    * @param uri2 the uri pointing to a second library
    * @param name the shared name of the imported libraries
    */
-  static const StaticWarningCode IMPORT_DUPLICATED_LIBRARY_NAME = const StaticWarningCode.con1('IMPORT_DUPLICATED_LIBRARY_NAME', 27, "The imported libraries '{0}' and '{1}' should not have the same name '{2}'");
-
-  /**
-   * 14.1 Imports: It is a static warning if the specified URI of a deferred import does not refer
-   * to a library declaration.
+  static const StaticWarningCode IMPORT_DUPLICATED_LIBRARY_NAME = const StaticWarningCode('IMPORT_DUPLICATED_LIBRARY_NAME', "The imported libraries '{0}' and '{1}' should not have the same name '{2}'");
+
+  /**
+   * 14.1 Imports: It is a static warning if the specified URI of a deferred
+   * import does not refer to a library declaration.
    *
    * @param uri the uri pointing to a non-library declaration
-   * @see CompileTimeErrorCode#IMPORT_OF_NON_LIBRARY
-   */
-  static const StaticWarningCode IMPORT_OF_NON_LIBRARY = const StaticWarningCode.con1('IMPORT_OF_NON_LIBRARY', 28, "The imported library '{0}' must not have a part-of directive");
-
-  /**
-   * 8.1.1 Inheritance and Overriding: However, if the above rules would cause multiple members
-   * <i>m<sub>1</sub>, &hellip;, m<sub>k</sub></i> with the same name <i>n</i> that would be
-   * inherited (because identically named members existed in several superinterfaces) then at most
-   * one member is inherited.
-   *
-   * If some but not all of the <i>m<sub>i</sub>, 1 &lt;= i &lt;= k</i> are getters none of the
-   * <i>m<sub>i</sub></i> are inherited, and a static warning is issued.
-   */
-  static const StaticWarningCode INCONSISTENT_METHOD_INHERITANCE_GETTER_AND_METHOD = const StaticWarningCode.con1('INCONSISTENT_METHOD_INHERITANCE_GETTER_AND_METHOD', 29, "'{0}' is inherited as a getter and also a method");
-
-  /**
-   * 7.1 Instance Methods: It is a static warning if a class <i>C</i> declares an instance method
-   * named <i>n</i> and an accessible static member named <i>n</i> is declared in a superclass of
-   * <i>C</i>.
+   * @see [CompileTimeErrorCode.IMPORT_OF_NON_LIBRARY]
+   */
+  static const StaticWarningCode IMPORT_OF_NON_LIBRARY = const StaticWarningCode('IMPORT_OF_NON_LIBRARY', "The imported library '{0}' must not have a part-of directive");
+
+  /**
+   * 8.1.1 Inheritance and Overriding: However, if the above rules would cause
+   * multiple members <i>m<sub>1</sub>, &hellip;, m<sub>k</sub></i> with the
+   * same name <i>n</i> that would be inherited (because identically named
+   * members existed in several superinterfaces) then at most one member is
+   * inherited.
+   *
+   * If some but not all of the <i>m<sub>i</sub>, 1 &lt;= i &lt;= k</i> are
+   * getters none of the <i>m<sub>i</sub></i> are inherited, and a static
+   * warning is issued.
+   */
+  static const StaticWarningCode INCONSISTENT_METHOD_INHERITANCE_GETTER_AND_METHOD = const StaticWarningCode('INCONSISTENT_METHOD_INHERITANCE_GETTER_AND_METHOD', "'{0}' is inherited as a getter and also a method");
+
+  /**
+   * 7.1 Instance Methods: It is a static warning if a class <i>C</i> declares
+   * an instance method named <i>n</i> and an accessible static member named
+   * <i>n</i> is declared in a superclass of <i>C</i>.
    *
    * @param memberName the name of the member with the name conflict
-   * @param superclassName the name of the enclosing class that has the static member
-   */
-  static const StaticWarningCode INSTANCE_METHOD_NAME_COLLIDES_WITH_SUPERCLASS_STATIC = const StaticWarningCode.con1('INSTANCE_METHOD_NAME_COLLIDES_WITH_SUPERCLASS_STATIC', 30, "'{0}' collides with a static member in the superclass '{1}'");
-
-  /**
-   * 7.2 Getters: It is a static warning if a getter <i>m1</i> overrides a getter <i>m2</i> and the
-   * type of <i>m1</i> is not a subtype of the type of <i>m2</i>.
+   * @param superclassName the name of the enclosing class that has the static
+   *        member
+   */
+  static const StaticWarningCode INSTANCE_METHOD_NAME_COLLIDES_WITH_SUPERCLASS_STATIC = const StaticWarningCode('INSTANCE_METHOD_NAME_COLLIDES_WITH_SUPERCLASS_STATIC', "'{0}' collides with a static member in the superclass '{1}'");
+
+  /**
+   * 7.2 Getters: It is a static warning if a getter <i>m1</i> overrides a
+   * getter <i>m2</i> and the type of <i>m1</i> is not a subtype of the type of
+   * <i>m2</i>.
    *
    * @param actualReturnTypeName the name of the expected return type
-   * @param expectedReturnType the name of the actual return type, not assignable to the
-   *          actualReturnTypeName
-   * @param className the name of the class where the overridden getter is declared
-   * @see #INVALID_METHOD_OVERRIDE_RETURN_TYPE
-   */
-  static const StaticWarningCode INVALID_GETTER_OVERRIDE_RETURN_TYPE = const StaticWarningCode.con1('INVALID_GETTER_OVERRIDE_RETURN_TYPE', 31, "The return type '{0}' is not assignable to '{1}' as required by the getter it is overriding from '{2}'");
-
-  /**
-   * 7.1 Instance Methods: It is a static warning if an instance method <i>m1</i> overrides an
-   * instance method <i>m2</i> and the type of <i>m1</i> is not a subtype of the type of <i>m2</i>.
+   * @param expectedReturnType the name of the actual return type, not
+   *        assignable to the actualReturnTypeName
+   * @param className the name of the class where the overridden getter is
+   *        declared
+   * @see [INVALID_METHOD_OVERRIDE_RETURN_TYPE]
+   */
+  static const StaticWarningCode INVALID_GETTER_OVERRIDE_RETURN_TYPE = const StaticWarningCode('INVALID_GETTER_OVERRIDE_RETURN_TYPE', "The return type '{0}' is not assignable to '{1}' as required by the getter it is overriding from '{2}'");
+
+  /**
+   * 7.1 Instance Methods: It is a static warning if an instance method
+   * <i>m1</i> overrides an instance method <i>m2</i> and the type of <i>m1</i>
+   * is not a subtype of the type of <i>m2</i>.
    *
    * @param actualParamTypeName the name of the expected parameter type
-   * @param expectedParamType the name of the actual parameter type, not assignable to the
-   *          actualParamTypeName
-   * @param className the name of the class where the overridden method is declared
-   */
-  static const StaticWarningCode INVALID_METHOD_OVERRIDE_NAMED_PARAM_TYPE = const StaticWarningCode.con1('INVALID_METHOD_OVERRIDE_NAMED_PARAM_TYPE', 32, "The parameter type '{0}' is not assignable to '{1}' as required by the method it is overriding from '{2}'");
-
-  /**
-   * 7.1 Instance Methods: It is a static warning if an instance method <i>m1</i> overrides an
-   * instance method <i>m2</i> and the type of <i>m1</i> is not a subtype of the type of <i>m2</i>.
+   * @param expectedParamType the name of the actual parameter type, not
+   *        assignable to the actualParamTypeName
+   * @param className the name of the class where the overridden method is
+   *        declared
+   */
+  static const StaticWarningCode INVALID_METHOD_OVERRIDE_NAMED_PARAM_TYPE = const StaticWarningCode('INVALID_METHOD_OVERRIDE_NAMED_PARAM_TYPE', "The parameter type '{0}' is not assignable to '{1}' as required by the method it is overriding from '{2}'");
+
+  /**
+   * 7.1 Instance Methods: It is a static warning if an instance method
+   * <i>m1</i> overrides an instance method <i>m2</i> and the type of <i>m1</i>
+   * is not a subtype of the type of <i>m2</i>.
    *
    * @param actualParamTypeName the name of the expected parameter type
-   * @param expectedParamType the name of the actual parameter type, not assignable to the
-   *          actualParamTypeName
-   * @param className the name of the class where the overridden method is declared
-   * @see #INVALID_SETTER_OVERRIDE_NORMAL_PARAM_TYPE
-   */
-  static const StaticWarningCode INVALID_METHOD_OVERRIDE_NORMAL_PARAM_TYPE = const StaticWarningCode.con1('INVALID_METHOD_OVERRIDE_NORMAL_PARAM_TYPE', 33, "The parameter type '{0}' is not assignable to '{1}' as required by the method it is overriding from '{2}'");
-
-  /**
-   * 7.1 Instance Methods: It is a static warning if an instance method <i>m1</i> overrides an
-   * instance method <i>m2</i> and the type of <i>m1</i> is not a subtype of the type of <i>m2</i>.
+   * @param expectedParamType the name of the actual parameter type, not
+   *        assignable to the actualParamTypeName
+   * @param className the name of the class where the overridden method is
+   *        declared
+   * @see [INVALID_SETTER_OVERRIDE_NORMAL_PARAM_TYPE]
+   */
+  static const StaticWarningCode INVALID_METHOD_OVERRIDE_NORMAL_PARAM_TYPE = const StaticWarningCode('INVALID_METHOD_OVERRIDE_NORMAL_PARAM_TYPE', "The parameter type '{0}' is not assignable to '{1}' as required by the method it is overriding from '{2}'");
+
+  /**
+   * 7.1 Instance Methods: It is a static warning if an instance method
+   * <i>m1</i> overrides an instance method <i>m2</i> and the type of <i>m1</i>
+   * is not a subtype of the type of <i>m2</i>.
    *
    * @param actualParamTypeName the name of the expected parameter type
-   * @param expectedParamType the name of the actual parameter type, not assignable to the
-   *          actualParamTypeName
-   * @param className the name of the class where the overridden method is declared
-   */
-  static const StaticWarningCode INVALID_METHOD_OVERRIDE_OPTIONAL_PARAM_TYPE = const StaticWarningCode.con1('INVALID_METHOD_OVERRIDE_OPTIONAL_PARAM_TYPE', 34, "The parameter type '{0}' is not assignable to '{1}' as required by the method it is overriding from '{2}'");
-
-  /**
-   * 7.1 Instance Methods: It is a static warning if an instance method <i>m1</i> overrides an
-   * instance method <i>m2</i> and the type of <i>m1</i> is not a subtype of the type of <i>m2</i>.
+   * @param expectedParamType the name of the actual parameter type, not
+   *        assignable to the actualParamTypeName
+   * @param className the name of the class where the overridden method is
+   *        declared
+   */
+  static const StaticWarningCode INVALID_METHOD_OVERRIDE_OPTIONAL_PARAM_TYPE = const StaticWarningCode('INVALID_METHOD_OVERRIDE_OPTIONAL_PARAM_TYPE', "The parameter type '{0}' is not assignable to '{1}' as required by the method it is overriding from '{2}'");
+
+  /**
+   * 7.1 Instance Methods: It is a static warning if an instance method
+   * <i>m1</i> overrides an instance method <i>m2</i> and the type of <i>m1</i>
+   * is not a subtype of the type of <i>m2</i>.
    *
    * @param actualReturnTypeName the name of the expected return type
-   * @param expectedReturnType the name of the actual return type, not assignable to the
-   *          actualReturnTypeName
-   * @param className the name of the class where the overridden method is declared
-   * @see #INVALID_GETTER_OVERRIDE_RETURN_TYPE
-   */
-  static const StaticWarningCode INVALID_METHOD_OVERRIDE_RETURN_TYPE = const StaticWarningCode.con1('INVALID_METHOD_OVERRIDE_RETURN_TYPE', 35, "The return type '{0}' is not assignable to '{1}' as required by the method it is overriding from '{2}'");
-
-  /**
-   * 7.1 Instance Methods: It is a static warning if an instance method <i>m1</i> overrides an
-   * instance member <i>m2</i>, the signature of <i>m2</i> explicitly specifies a default value for
-   * a formal parameter <i>p</i> and the signature of <i>m1</i> specifies a different default value
+   * @param expectedReturnType the name of the actual return type, not
+   *        assignable to the actualReturnTypeName
+   * @param className the name of the class where the overridden method is
+   *        declared
+   * @see [INVALID_GETTER_OVERRIDE_RETURN_TYPE]
+   */
+  static const StaticWarningCode INVALID_METHOD_OVERRIDE_RETURN_TYPE = const StaticWarningCode('INVALID_METHOD_OVERRIDE_RETURN_TYPE', "The return type '{0}' is not assignable to '{1}' as required by the method it is overriding from '{2}'");
+
+  /**
+   * 7.1 Instance Methods: It is a static warning if an instance method
+   * <i>m1</i> overrides an instance member <i>m2</i>, the signature of
+   * <i>m2</i> explicitly specifies a default value for a formal parameter
+   * <i>p</i> and the signature of <i>m1</i> specifies a different default value
    * for <i>p</i>.
    */
-  static const StaticWarningCode INVALID_OVERRIDE_DIFFERENT_DEFAULT_VALUES_NAMED = const StaticWarningCode.con1('INVALID_OVERRIDE_DIFFERENT_DEFAULT_VALUES_NAMED', 36, "Parameters cannot override default values, this method overrides '{0}.{1}' where '{2}' has a different value");
-
-  /**
-   * 7.1 Instance Methods: It is a static warning if an instance method <i>m1</i> overrides an
-   * instance member <i>m2</i>, the signature of <i>m2</i> explicitly specifies a default value for
-   * a formal parameter <i>p</i> and the signature of <i>m1</i> specifies a different default value
+  static const StaticWarningCode INVALID_OVERRIDE_DIFFERENT_DEFAULT_VALUES_NAMED = const StaticWarningCode('INVALID_OVERRIDE_DIFFERENT_DEFAULT_VALUES_NAMED', "Parameters cannot override default values, this method overrides '{0}.{1}' where '{2}' has a different value");
+
+  /**
+   * 7.1 Instance Methods: It is a static warning if an instance method
+   * <i>m1</i> overrides an instance member <i>m2</i>, the signature of
+   * <i>m2</i> explicitly specifies a default value for a formal parameter
+   * <i>p</i> and the signature of <i>m1</i> specifies a different default value
    * for <i>p</i>.
    */
-  static const StaticWarningCode INVALID_OVERRIDE_DIFFERENT_DEFAULT_VALUES_POSITIONAL = const StaticWarningCode.con1('INVALID_OVERRIDE_DIFFERENT_DEFAULT_VALUES_POSITIONAL', 37, "Parameters cannot override default values, this method overrides '{0}.{1}' where this positional parameter has a different value");
-
-  /**
-   * 7.1 Instance Methods: It is a static warning if an instance method <i>m1</i> overrides an
-   * instance member <i>m2</i> and <i>m1</i> does not declare all the named parameters declared by
-   * <i>m2</i>.
+  static const StaticWarningCode INVALID_OVERRIDE_DIFFERENT_DEFAULT_VALUES_POSITIONAL = const StaticWarningCode('INVALID_OVERRIDE_DIFFERENT_DEFAULT_VALUES_POSITIONAL', "Parameters cannot override default values, this method overrides '{0}.{1}' where this positional parameter has a different value");
+
+  /**
+   * 7.1 Instance Methods: It is a static warning if an instance method
+   * <i>m1</i> overrides an instance member <i>m2</i> and <i>m1</i> does not
+   * declare all the named parameters declared by <i>m2</i>.
    *
    * @param paramCount the number of named parameters in the overridden member
    * @param className the name of the class from the overridden method
    */
-  static const StaticWarningCode INVALID_OVERRIDE_NAMED = const StaticWarningCode.con1('INVALID_OVERRIDE_NAMED', 38, "Missing the named parameter '{0}' to match the overridden method from '{1}'");
-
-  /**
-   * 7.1 Instance Methods: It is a static warning if an instance method <i>m1</i> overrides an
-   * instance member <i>m2</i> and <i>m1</i> has fewer positional parameters than <i>m2</i>.
-   *
-   * @param paramCount the number of positional parameters in the overridden member
+  static const StaticWarningCode INVALID_OVERRIDE_NAMED = const StaticWarningCode('INVALID_OVERRIDE_NAMED', "Missing the named parameter '{0}' to match the overridden method from '{1}'");
+
+  /**
+   * 7.1 Instance Methods: It is a static warning if an instance method
+   * <i>m1</i> overrides an instance member <i>m2</i> and <i>m1</i> has fewer
+   * positional parameters than <i>m2</i>.
+   *
+   * @param paramCount the number of positional parameters in the overridden
+   *        member
    * @param className the name of the class from the overridden method
    */
-  static const StaticWarningCode INVALID_OVERRIDE_POSITIONAL = const StaticWarningCode.con1('INVALID_OVERRIDE_POSITIONAL', 39, "Must have at least {0} parameters to match the overridden method from '{1}'");
-
-  /**
-   * 7.1 Instance Methods: It is a static warning if an instance method <i>m1</i> overrides an
-   * instance member <i>m2</i> and <i>m1</i> has a greater number of required parameters than
+  static const StaticWarningCode INVALID_OVERRIDE_POSITIONAL = const StaticWarningCode('INVALID_OVERRIDE_POSITIONAL', "Must have at least {0} parameters to match the overridden method from '{1}'");
+
+  /**
+   * 7.1 Instance Methods: It is a static warning if an instance method
+   * <i>m1</i> overrides an instance member <i>m2</i> and <i>m1</i> has a
+   * greater number of required parameters than <i>m2</i>.
+   *
+   * @param paramCount the number of required parameters in the overridden
+   *        member
+   * @param className the name of the class from the overridden method
+   */
+  static const StaticWarningCode INVALID_OVERRIDE_REQUIRED = const StaticWarningCode('INVALID_OVERRIDE_REQUIRED', "Must have {0} required parameters or less to match the overridden method from '{1}'");
+
+  /**
+   * 7.3 Setters: It is a static warning if a setter <i>m1</i> overrides a
+   * setter <i>m2</i> and the type of <i>m1</i> is not a subtype of the type of
    * <i>m2</i>.
    *
-   * @param paramCount the number of required parameters in the overridden member
-   * @param className the name of the class from the overridden method
-   */
-  static const StaticWarningCode INVALID_OVERRIDE_REQUIRED = const StaticWarningCode.con1('INVALID_OVERRIDE_REQUIRED', 40, "Must have {0} required parameters or less to match the overridden method from '{1}'");
-
-  /**
-   * 7.3 Setters: It is a static warning if a setter <i>m1</i> overrides a setter <i>m2</i> and the
-   * type of <i>m1</i> is not a subtype of the type of <i>m2</i>.
-   *
    * @param actualParamTypeName the name of the expected parameter type
-   * @param expectedParamType the name of the actual parameter type, not assignable to the
-   *          actualParamTypeName
-   * @param className the name of the class where the overridden setter is declared
-   * @see #INVALID_METHOD_OVERRIDE_NORMAL_PARAM_TYPE
-   */
-  static const StaticWarningCode INVALID_SETTER_OVERRIDE_NORMAL_PARAM_TYPE = const StaticWarningCode.con1('INVALID_SETTER_OVERRIDE_NORMAL_PARAM_TYPE', 41, "The parameter type '{0}' is not assignable to '{1}' as required by the setter it is overriding from '{2}'");
-
-  /**
-   * 12.6 Lists: A run-time list literal &lt;<i>E</i>&gt; [<i>e<sub>1</sub></i> &hellip;
-   * <i>e<sub>n</sub></i>] is evaluated as follows:
-   * * The operator []= is invoked on <i>a</i> with first argument <i>i</i> and second argument
-   * <i>o<sub>i+1</sub></i><i>, 1 &lt;= i &lt;= n</i>
-   *
-   * 12.14.2 Binding Actuals to Formals: Let <i>T<sub>i</sub></i> be the static type of
-   * <i>a<sub>i</sub></i>, let <i>S<sub>i</sub></i> be the type of <i>p<sub>i</sub>, 1 &lt;= i &lt;=
-   * n+k</i> and let <i>S<sub>q</sub></i> be the type of the named parameter <i>q</i> of <i>f</i>.
-   * It is a static warning if <i>T<sub>j</sub></i> may not be assigned to <i>S<sub>j</sub>, 1 &lt;=
-   * j &lt;= m</i>.
-   */
-  static const StaticWarningCode LIST_ELEMENT_TYPE_NOT_ASSIGNABLE = const StaticWarningCode.con1('LIST_ELEMENT_TYPE_NOT_ASSIGNABLE', 42, "The element type '{0}' cannot be assigned to the list type '{1}'");
-
-  /**
-   * 12.7 Map: A run-time map literal &lt;<i>K</i>, <i>V</i>&gt; [<i>k<sub>1</sub></i> :
-   * <i>e<sub>1</sub></i> &hellip; <i>k<sub>n</sub></i> : <i>e<sub>n</sub></i>] is evaluated as
-   * follows:
-   * * The operator []= is invoked on <i>m</i> with first argument <i>k<sub>i</sub></i> and second
-   * argument <i>e<sub>i</sub></i><i>, 1 &lt;= i &lt;= n</i>
-   *
-   * 12.14.2 Binding Actuals to Formals: Let <i>T<sub>i</sub></i> be the static type of
-   * <i>a<sub>i</sub></i>, let <i>S<sub>i</sub></i> be the type of <i>p<sub>i</sub>, 1 &lt;= i &lt;=
-   * n+k</i> and let <i>S<sub>q</sub></i> be the type of the named parameter <i>q</i> of <i>f</i>.
-   * It is a static warning if <i>T<sub>j</sub></i> may not be assigned to <i>S<sub>j</sub>, 1 &lt;=
-   * j &lt;= m</i>.
-   */
-  static const StaticWarningCode MAP_KEY_TYPE_NOT_ASSIGNABLE = const StaticWarningCode.con1('MAP_KEY_TYPE_NOT_ASSIGNABLE', 43, "The element type '{0}' cannot be assigned to the map key type '{1}'");
-
-  /**
-   * 12.7 Map: A run-time map literal &lt;<i>K</i>, <i>V</i>&gt; [<i>k<sub>1</sub></i> :
-   * <i>e<sub>1</sub></i> &hellip; <i>k<sub>n</sub></i> : <i>e<sub>n</sub></i>] is evaluated as
-   * follows:
-   * * The operator []= is invoked on <i>m</i> with first argument <i>k<sub>i</sub></i> and second
-   * argument <i>e<sub>i</sub></i><i>, 1 &lt;= i &lt;= n</i>
-   *
-   * 12.14.2 Binding Actuals to Formals: Let <i>T<sub>i</sub></i> be the static type of
-   * <i>a<sub>i</sub></i>, let <i>S<sub>i</sub></i> be the type of <i>p<sub>i</sub>, 1 &lt;= i &lt;=
-   * n+k</i> and let <i>S<sub>q</sub></i> be the type of the named parameter <i>q</i> of <i>f</i>.
-   * It is a static warning if <i>T<sub>j</sub></i> may not be assigned to <i>S<sub>j</sub>, 1 &lt;=
-   * j &lt;= m</i>.
-   */
-  static const StaticWarningCode MAP_VALUE_TYPE_NOT_ASSIGNABLE = const StaticWarningCode.con1('MAP_VALUE_TYPE_NOT_ASSIGNABLE', 44, "The element type '{0}' cannot be assigned to the map value type '{1}'");
-
-  /**
-   * 7.3 Setters: It is a static warning if a class has a setter named <i>v=</i> with argument type
-   * <i>T</i> and a getter named <i>v</i> with return type <i>S</i>, and <i>T</i> may not be
-   * assigned to <i>S</i>.
-   */
-  static const StaticWarningCode MISMATCHED_GETTER_AND_SETTER_TYPES = const StaticWarningCode.con1('MISMATCHED_GETTER_AND_SETTER_TYPES', 45, "The parameter type for setter '{0}' is '{1}' which is not assignable to its getter (of type '{2}')");
-
-  /**
-   * 7.3 Setters: It is a static warning if a class has a setter named <i>v=</i> with argument type
-   * <i>T</i> and a getter named <i>v</i> with return type <i>S</i>, and <i>T</i> may not be
-   * assigned to <i>S</i>.
-   */
-  static const StaticWarningCode MISMATCHED_GETTER_AND_SETTER_TYPES_FROM_SUPERTYPE = const StaticWarningCode.con1('MISMATCHED_GETTER_AND_SETTER_TYPES_FROM_SUPERTYPE', 46, "The parameter type for setter '{0}' is '{1}' which is not assignable to its getter (of type '{2}'), from superclass '{3}'");
-
-  /**
-   * 13.12 Return: It is a static warning if a function contains both one or more return statements
-   * of the form <i>return;</i> and one or more return statements of the form <i>return e;</i>.
-   */
-  static const StaticWarningCode MIXED_RETURN_TYPES = const StaticWarningCode.con1('MIXED_RETURN_TYPES', 47, "Methods and functions cannot use return both with and without values");
-
-  /**
-   * 12.11.1 New: It is a static warning if <i>q</i> is a constructor of an abstract class and
-   * <i>q</i> is not a factory constructor.
-   */
-  static const StaticWarningCode NEW_WITH_ABSTRACT_CLASS = const StaticWarningCode.con1('NEW_WITH_ABSTRACT_CLASS', 48, "Abstract classes cannot be created with a 'new' expression");
-
-  /**
-   * 15.8 Parameterized Types: Any use of a malbounded type gives rise to a static warning.
+   * @param expectedParamType the name of the actual parameter type, not
+   *        assignable to the actualParamTypeName
+   * @param className the name of the class where the overridden setter is
+   *        declared
+   * @see [INVALID_METHOD_OVERRIDE_NORMAL_PARAM_TYPE]
+   */
+  static const StaticWarningCode INVALID_SETTER_OVERRIDE_NORMAL_PARAM_TYPE = const StaticWarningCode('INVALID_SETTER_OVERRIDE_NORMAL_PARAM_TYPE', "The parameter type '{0}' is not assignable to '{1}' as required by the setter it is overriding from '{2}'");
+
+  /**
+   * 12.6 Lists: A run-time list literal &lt;<i>E</i>&gt; [<i>e<sub>1</sub></i>
+   * &hellip; <i>e<sub>n</sub></i>] is evaluated as follows:
+   * * The operator []= is invoked on <i>a</i> with first argument <i>i</i> and
+   *   second argument <i>o<sub>i+1</sub></i><i>, 1 &lt;= i &lt;= n</i>
+   *
+   * 12.14.2 Binding Actuals to Formals: Let <i>T<sub>i</sub></i> be the static
+   * type of <i>a<sub>i</sub></i>, let <i>S<sub>i</sub></i> be the type of
+   * <i>p<sub>i</sub>, 1 &lt;= i &lt;= n+k</i> and let <i>S<sub>q</sub></i> be
+   * the type of the named parameter <i>q</i> of <i>f</i>. It is a static
+   * warning if <i>T<sub>j</sub></i> may not be assigned to <i>S<sub>j</sub>, 1
+   * &lt;= j &lt;= m</i>.
+   */
+  static const StaticWarningCode LIST_ELEMENT_TYPE_NOT_ASSIGNABLE = const StaticWarningCode('LIST_ELEMENT_TYPE_NOT_ASSIGNABLE', "The element type '{0}' cannot be assigned to the list type '{1}'");
+
+  /**
+   * 12.7 Map: A run-time map literal &lt;<i>K</i>, <i>V</i>&gt;
+   * [<i>k<sub>1</sub></i> : <i>e<sub>1</sub></i> &hellip; <i>k<sub>n</sub></i>
+   * : <i>e<sub>n</sub></i>] is evaluated as follows:
+   * * The operator []= is invoked on <i>m</i> with first argument
+   *   <i>k<sub>i</sub></i> and second argument <i>e<sub>i</sub></i><i>, 1 &lt;=
+   *   i &lt;= n</i>
+   *
+   * 12.14.2 Binding Actuals to Formals: Let <i>T<sub>i</sub></i> be the static
+   * type of <i>a<sub>i</sub></i>, let <i>S<sub>i</sub></i> be the type of
+   * <i>p<sub>i</sub>, 1 &lt;= i &lt;= n+k</i> and let <i>S<sub>q</sub></i> be
+   * the type of the named parameter <i>q</i> of <i>f</i>. It is a static
+   * warning if <i>T<sub>j</sub></i> may not be assigned to <i>S<sub>j</sub>, 1
+   * &lt;= j &lt;= m</i>.
+   */
+  static const StaticWarningCode MAP_KEY_TYPE_NOT_ASSIGNABLE = const StaticWarningCode('MAP_KEY_TYPE_NOT_ASSIGNABLE', "The element type '{0}' cannot be assigned to the map key type '{1}'");
+
+  /**
+   * 12.7 Map: A run-time map literal &lt;<i>K</i>, <i>V</i>&gt;
+   * [<i>k<sub>1</sub></i> : <i>e<sub>1</sub></i> &hellip; <i>k<sub>n</sub></i>
+   * : <i>e<sub>n</sub></i>] is evaluated as follows:
+   * * The operator []= is invoked on <i>m</i> with first argument
+   *   <i>k<sub>i</sub></i> and second argument <i>e<sub>i</sub></i><i>, 1 &lt;=
+   *   i &lt;= n</i>
+   *
+   * 12.14.2 Binding Actuals to Formals: Let <i>T<sub>i</sub></i> be the static
+   * type of <i>a<sub>i</sub></i>, let <i>S<sub>i</sub></i> be the type of
+   * <i>p<sub>i</sub>, 1 &lt;= i &lt;= n+k</i> and let <i>S<sub>q</sub></i> be
+   * the type of the named parameter <i>q</i> of <i>f</i>. It is a static
+   * warning if <i>T<sub>j</sub></i> may not be assigned to <i>S<sub>j</sub>, 1
+   * &lt;= j &lt;= m</i>.
+   */
+  static const StaticWarningCode MAP_VALUE_TYPE_NOT_ASSIGNABLE = const StaticWarningCode('MAP_VALUE_TYPE_NOT_ASSIGNABLE', "The element type '{0}' cannot be assigned to the map value type '{1}'");
+
+  /**
+   * 7.3 Setters: It is a static warning if a class has a setter named <i>v=</i>
+   * with argument type <i>T</i> and a getter named <i>v</i> with return type
+   * <i>S</i>, and <i>T</i> may not be assigned to <i>S</i>.
+   */
+  static const StaticWarningCode MISMATCHED_GETTER_AND_SETTER_TYPES = const StaticWarningCode('MISMATCHED_GETTER_AND_SETTER_TYPES', "The parameter type for setter '{0}' is '{1}' which is not assignable to its getter (of type '{2}')");
+
+  /**
+   * 7.3 Setters: It is a static warning if a class has a setter named <i>v=</i>
+   * with argument type <i>T</i> and a getter named <i>v</i> with return type
+   * <i>S</i>, and <i>T</i> may not be assigned to <i>S</i>.
+   */
+  static const StaticWarningCode MISMATCHED_GETTER_AND_SETTER_TYPES_FROM_SUPERTYPE = const StaticWarningCode('MISMATCHED_GETTER_AND_SETTER_TYPES_FROM_SUPERTYPE', "The parameter type for setter '{0}' is '{1}' which is not assignable to its getter (of type '{2}'), from superclass '{3}'");
+
+  /**
+   * 13.12 Return: It is a static warning if a function contains both one or
+   * more return statements of the form <i>return;</i> and one or more return
+   * statements of the form <i>return e;</i>.
+   */
+  static const StaticWarningCode MIXED_RETURN_TYPES = const StaticWarningCode('MIXED_RETURN_TYPES', "Methods and functions cannot use return both with and without values");
+
+  /**
+   * 12.11.1 New: It is a static warning if <i>q</i> is a constructor of an
+   * abstract class and <i>q</i> is not a factory constructor.
+   */
+  static const StaticWarningCode NEW_WITH_ABSTRACT_CLASS = const StaticWarningCode('NEW_WITH_ABSTRACT_CLASS', "Abstract classes cannot be created with a 'new' expression");
+
+  /**
+   * 15.8 Parameterized Types: Any use of a malbounded type gives rise to a
+   * static warning.
    *
    * @param typeName the name of the type being referenced (<i>S</i>)
    * @param parameterCount the number of type parameters that were declared
    * @param argumentCount the number of type arguments provided
-   * @see CompileTimeErrorCode#CONST_WITH_INVALID_TYPE_PARAMETERS
-   * @see StaticTypeWarningCode#WRONG_NUMBER_OF_TYPE_ARGUMENTS
-   */
-  static const StaticWarningCode NEW_WITH_INVALID_TYPE_PARAMETERS = const StaticWarningCode.con1('NEW_WITH_INVALID_TYPE_PARAMETERS', 49, "The type '{0}' is declared with {1} type parameters, but {2} type arguments were given");
-
-  /**
-   * 12.11.1 New: It is a static warning if <i>T</i> is not a class accessible in the current scope,
-   * optionally followed by type arguments.
+   * @see [CompileTimeErrorCode.CONST_WITH_INVALID_TYPE_PARAMETERS]
+   * @see [StaticTypeWarningCode.WRONG_NUMBER_OF_TYPE_ARGUMENTS]
+   */
+  static const StaticWarningCode NEW_WITH_INVALID_TYPE_PARAMETERS = const StaticWarningCode('NEW_WITH_INVALID_TYPE_PARAMETERS', "The type '{0}' is declared with {1} type parameters, but {2} type arguments were given");
+
+  /**
+   * 12.11.1 New: It is a static warning if <i>T</i> is not a class accessible
+   * in the current scope, optionally followed by type arguments.
    *
    * @param name the name of the non-type element
    */
-  static const StaticWarningCode NEW_WITH_NON_TYPE = const StaticWarningCode.con1('NEW_WITH_NON_TYPE', 50, "The name '{0}' is not a class");
-
-  /**
-   * 12.11.1 New: If <i>T</i> is a class or parameterized type accessible in the current scope then:
-   * 1. If <i>e</i> is of the form <i>new T.id(a<sub>1</sub>, &hellip;, a<sub>n</sub>,
-   * x<sub>n+1</sub>: a<sub>n+1</sub>, &hellip;, x<sub>n+k</sub>: a<sub>n+k</sub>)</i> it is a
-   * static warning if <i>T.id</i> is not the name of a constructor declared by the type <i>T</i>.
-   * If <i>e</i> of the form <i>new T(a<sub>1</sub>, &hellip;, a<sub>n</sub>, x<sub>n+1</sub>:
-   * a<sub>n+1</sub>, &hellip;, x<sub>n+k</sub>: a<sub>n+kM/sub>)</i> it is a static warning if the
-   * type <i>T</i> does not declare a constructor with the same name as the declaration of <i>T</i>.
-   */
-  static const StaticWarningCode NEW_WITH_UNDEFINED_CONSTRUCTOR = const StaticWarningCode.con1('NEW_WITH_UNDEFINED_CONSTRUCTOR', 51, "The class '{0}' does not have a constructor '{1}'");
-
-  /**
-   * 12.11.1 New: If <i>T</i> is a class or parameterized type accessible in the current scope then:
-   * 1. If <i>e</i> is of the form <i>new T.id(a<sub>1</sub>, &hellip;, a<sub>n</sub>,
-   * x<sub>n+1</sub>: a<sub>n+1</sub>, &hellip;, x<sub>n+k</sub>: a<sub>n+k</sub>)</i> it is a
-   * static warning if <i>T.id</i> is not the name of a constructor declared by the type <i>T</i>.
-   * If <i>e</i> of the form <i>new T(a<sub>1</sub>, &hellip;, a<sub>n</sub>, x<sub>n+1</sub>:
-   * a<sub>n+1</sub>, &hellip;, x<sub>n+k</sub>: a<sub>n+kM/sub>)</i> it is a static warning if the
-   * type <i>T</i> does not declare a constructor with the same name as the declaration of <i>T</i>.
-   */
-  static const StaticWarningCode NEW_WITH_UNDEFINED_CONSTRUCTOR_DEFAULT = const StaticWarningCode.con1('NEW_WITH_UNDEFINED_CONSTRUCTOR_DEFAULT', 52, "The class '{0}' does not have a default constructor");
-
-  /**
-   * 7.9.1 Inheritance and Overriding: It is a static warning if a non-abstract class inherits an
-   * abstract method.
-   *
-   * 7.10 Superinterfaces: Let <i>C</i> be a concrete class that does not declare its own
-   * <i>noSuchMethod()</i> method. It is a static warning if the implicit interface of <i>C</i>
-   * includes an instance member <i>m</i> of type <i>F</i> and <i>C</i> does not declare or inherit
-   * a corresponding instance member <i>m</i> of type <i>F'</i> such that <i>F' <: F</i>.
-   *
-   * 7.4 Abstract Instance Members: It is a static warning if an abstract member is declared or
-   * inherited in a concrete class unless that member overrides a concrete one.
+  static const StaticWarningCode NEW_WITH_NON_TYPE = const StaticWarningCode('NEW_WITH_NON_TYPE', "The name '{0}' is not a class");
+
+  /**
+   * 12.11.1 New: If <i>T</i> is a class or parameterized type accessible in the
+   * current scope then:
+   * 1. If <i>e</i> is of the form <i>new T.id(a<sub>1</sub>, &hellip;,
+   *    a<sub>n</sub>, x<sub>n+1</sub>: a<sub>n+1</sub>, &hellip;,
+   *    x<sub>n+k</sub>: a<sub>n+k</sub>)</i> it is a static warning if
+   *    <i>T.id</i> is not the name of a constructor declared by the type
+   *    <i>T</i>.
+   * If <i>e</i> of the form <i>new T(a<sub>1</sub>, &hellip;, a<sub>n</sub>,
+   * x<sub>n+1</sub>: a<sub>n+1</sub>, &hellip;, x<sub>n+k</sub>:
+   * a<sub>n+kM/sub>)</i> it is a static warning if the type <i>T</i> does not
+   * declare a constructor with the same name as the declaration of <i>T</i>.
+   */
+  static const StaticWarningCode NEW_WITH_UNDEFINED_CONSTRUCTOR = const StaticWarningCode('NEW_WITH_UNDEFINED_CONSTRUCTOR', "The class '{0}' does not have a constructor '{1}'");
+
+  /**
+   * 12.11.1 New: If <i>T</i> is a class or parameterized type accessible in the
+   * current scope then:
+   * 1. If <i>e</i> is of the form <i>new T.id(a<sub>1</sub>, &hellip;,
+   * a<sub>n</sub>, x<sub>n+1</sub>: a<sub>n+1</sub>, &hellip;, x<sub>n+k</sub>:
+   * a<sub>n+k</sub>)</i> it is a static warning if <i>T.id</i> is not the name
+   * of a constructor declared by the type <i>T</i>. If <i>e</i> of the form
+   * <i>new T(a<sub>1</sub>, &hellip;, a<sub>n</sub>, x<sub>n+1</sub>:
+   * a<sub>n+1</sub>, &hellip;, x<sub>n+k</sub>: a<sub>n+kM/sub>)</i> it is a
+   * static warning if the type <i>T</i> does not declare a constructor with the
+   * same name as the declaration of <i>T</i>.
+   */
+  static const StaticWarningCode NEW_WITH_UNDEFINED_CONSTRUCTOR_DEFAULT = const StaticWarningCode('NEW_WITH_UNDEFINED_CONSTRUCTOR_DEFAULT', "The class '{0}' does not have a default constructor");
+
+  /**
+   * 7.9.1 Inheritance and Overriding: It is a static warning if a non-abstract
+   * class inherits an abstract method.
+   *
+   * 7.10 Superinterfaces: Let <i>C</i> be a concrete class that does not
+   * declare its own <i>noSuchMethod()</i> method. It is a static warning if the
+   * implicit interface of <i>C</i> includes an instance member <i>m</i> of type
+   * <i>F</i> and <i>C</i> does not declare or inherit a corresponding instance
+   * member <i>m</i> of type <i>F'</i> such that <i>F' <: F</i>.
+   *
+   * 7.4 Abstract Instance Members: It is a static warning if an abstract member
+   * is declared or inherited in a concrete class unless that member overrides a
+   * concrete one.
    *
    * @param memberName the name of the first member
    * @param memberName the name of the second member
    * @param memberName the name of the third member
    * @param memberName the name of the fourth member
-   * @param additionalCount the number of additional missing members that aren't listed
-   */
-  static const StaticWarningCode NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER_FIVE_PLUS = const StaticWarningCode.con1('NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER_FIVE_PLUS', 53, "Missing concrete implementation of {0}, {1}, {2}, {3} and {4} more");
-
-  /**
-   * 7.9.1 Inheritance and Overriding: It is a static warning if a non-abstract class inherits an
-   * abstract method.
-   *
-   * 7.10 Superinterfaces: Let <i>C</i> be a concrete class that does not declare its own
-   * <i>noSuchMethod()</i> method. It is a static warning if the implicit interface of <i>C</i>
-   * includes an instance member <i>m</i> of type <i>F</i> and <i>C</i> does not declare or inherit
-   * a corresponding instance member <i>m</i> of type <i>F'</i> such that <i>F' <: F</i>.
-   *
-   * 7.4 Abstract Instance Members: It is a static warning if an abstract member is declared or
-   * inherited in a concrete class unless that member overrides a concrete one.
+   * @param additionalCount the number of additional missing members that aren't
+   *        listed
+   */
+  static const StaticWarningCode NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER_FIVE_PLUS = const StaticWarningCode('NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER_FIVE_PLUS', "Missing concrete implementation of {0}, {1}, {2}, {3} and {4} more");
+
+  /**
+   * 7.9.1 Inheritance and Overriding: It is a static warning if a non-abstract
+   * class inherits an abstract method.
+   *
+   * 7.10 Superinterfaces: Let <i>C</i> be a concrete class that does not
+   * declare its own <i>noSuchMethod()</i> method. It is a static warning if the
+   * implicit interface of <i>C</i> includes an instance member <i>m</i> of type
+   * <i>F</i> and <i>C</i> does not declare or inherit a corresponding instance
+   * member <i>m</i> of type <i>F'</i> such that <i>F' <: F</i>.
+   *
+   * 7.4 Abstract Instance Members: It is a static warning if an abstract member
+   * is declared or inherited in a concrete class unless that member overrides a
+   * concrete one.
    *
    * @param memberName the name of the first member
    * @param memberName the name of the second member
    * @param memberName the name of the third member
    * @param memberName the name of the fourth member
    */
-  static const StaticWarningCode NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER_FOUR = const StaticWarningCode.con1('NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER_FOUR', 54, "Missing concrete implementation of {0}, {1}, {2} and {3}");
-
-  /**
-   * 7.9.1 Inheritance and Overriding: It is a static warning if a non-abstract class inherits an
-   * abstract method.
-   *
-   * 7.10 Superinterfaces: Let <i>C</i> be a concrete class that does not declare its own
-   * <i>noSuchMethod()</i> method. It is a static warning if the implicit interface of <i>C</i>
-   * includes an instance member <i>m</i> of type <i>F</i> and <i>C</i> does not declare or inherit
-   * a corresponding instance member <i>m</i> of type <i>F'</i> such that <i>F' <: F</i>.
-   *
-   * 7.4 Abstract Instance Members: It is a static warning if an abstract member is declared or
-   * inherited in a concrete class unless that member overrides a concrete one.
+  static const StaticWarningCode NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER_FOUR = const StaticWarningCode('NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER_FOUR', "Missing concrete implementation of {0}, {1}, {2} and {3}");
+
+  /**
+   * 7.9.1 Inheritance and Overriding: It is a static warning if a non-abstract
+   * class inherits an abstract method.
+   *
+   * 7.10 Superinterfaces: Let <i>C</i> be a concrete class that does not
+   * declare its own <i>noSuchMethod()</i> method. It is a static warning if the
+   * implicit interface of <i>C</i> includes an instance member <i>m</i> of type
+   * <i>F</i> and <i>C</i> does not declare or inherit a corresponding instance
+   * member <i>m</i> of type <i>F'</i> such that <i>F' <: F</i>.
+   *
+   * 7.4 Abstract Instance Members: It is a static warning if an abstract member
+   * is declared or inherited in a concrete class unless that member overrides a
+   * concrete one.
    *
    * @param memberName the name of the member
    */
-  static const StaticWarningCode NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER_ONE = const StaticWarningCode.con1('NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER_ONE', 55, "Missing concrete implementation of {0}");
-
-  /**
-   * 7.9.1 Inheritance and Overriding: It is a static warning if a non-abstract class inherits an
-   * abstract method.
-   *
-   * 7.10 Superinterfaces: Let <i>C</i> be a concrete class that does not declare its own
-   * <i>noSuchMethod()</i> method. It is a static warning if the implicit interface of <i>C</i>
-   * includes an instance member <i>m</i> of type <i>F</i> and <i>C</i> does not declare or inherit
-   * a corresponding instance member <i>m</i> of type <i>F'</i> such that <i>F' <: F</i>.
-   *
-   * 7.4 Abstract Instance Members: It is a static warning if an abstract member is declared or
-   * inherited in a concrete class unless that member overrides a concrete one.
+  static const StaticWarningCode NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER_ONE = const StaticWarningCode('NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER_ONE', "Missing concrete implementation of {0}");
+
+  /**
+   * 7.9.1 Inheritance and Overriding: It is a static warning if a non-abstract
+   * class inherits an abstract method.
+   *
+   * 7.10 Superinterfaces: Let <i>C</i> be a concrete class that does not
+   * declare its own <i>noSuchMethod()</i> method. It is a static warning if the
+   * implicit interface of <i>C</i> includes an instance member <i>m</i> of type
+   * <i>F</i> and <i>C</i> does not declare or inherit a corresponding instance
+   * member <i>m</i> of type <i>F'</i> such that <i>F' <: F</i>.
+   *
+   * 7.4 Abstract Instance Members: It is a static warning if an abstract member
+   * is declared or inherited in a concrete class unless that member overrides a
+   * concrete one.
    *
    * @param memberName the name of the first member
    * @param memberName the name of the second member
    * @param memberName the name of the third member
    */
-  static const StaticWarningCode NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER_THREE = const StaticWarningCode.con1('NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER_THREE', 56, "Missing concrete implementation of {0}, {1} and {2}");
-
-  /**
-   * 7.9.1 Inheritance and Overriding: It is a static warning if a non-abstract class inherits an
-   * abstract method.
-   *
-   * 7.10 Superinterfaces: Let <i>C</i> be a concrete class that does not declare its own
-   * <i>noSuchMethod()</i> method. It is a static warning if the implicit interface of <i>C</i>
-   * includes an instance member <i>m</i> of type <i>F</i> and <i>C</i> does not declare or inherit
-   * a corresponding instance member <i>m</i> of type <i>F'</i> such that <i>F' <: F</i>.
-   *
-   * 7.4 Abstract Instance Members: It is a static warning if an abstract member is declared or
-   * inherited in a concrete class unless that member overrides a concrete one.
+  static const StaticWarningCode NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER_THREE = const StaticWarningCode('NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER_THREE', "Missing concrete implementation of {0}, {1} and {2}");
+
+  /**
+   * 7.9.1 Inheritance and Overriding: It is a static warning if a non-abstract
+   * class inherits an abstract method.
+   *
+   * 7.10 Superinterfaces: Let <i>C</i> be a concrete class that does not
+   * declare its own <i>noSuchMethod()</i> method. It is a static warning if the
+   * implicit interface of <i>C</i> includes an instance member <i>m</i> of type
+   * <i>F</i> and <i>C</i> does not declare or inherit a corresponding instance
+   * member <i>m</i> of type <i>F'</i> such that <i>F' <: F</i>.
+   *
+   * 7.4 Abstract Instance Members: It is a static warning if an abstract member
+   * is declared or inherited in a concrete class unless that member overrides a
+   * concrete one.
    *
    * @param memberName the name of the first member
    * @param memberName the name of the second member
    */
-  static const StaticWarningCode NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER_TWO = const StaticWarningCode.con1('NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER_TWO', 57, "Missing concrete implementation of {0} and {1}");
-
-  /**
-   * 13.11 Try: An on-catch clause of the form <i>on T catch (p<sub>1</sub>, p<sub>2</sub>) s</i> or
-   * <i>on T s</i> matches an object <i>o</i> if the type of <i>o</i> is a subtype of <i>T</i>. It
-   * is a static warning if <i>T</i> does not denote a type available in the lexical scope of the
+  static const StaticWarningCode NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER_TWO = const StaticWarningCode('NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER_TWO', "Missing concrete implementation of {0} and {1}");
+
+  /**
+   * 13.11 Try: An on-catch clause of the form <i>on T catch (p<sub>1</sub>,
+   * p<sub>2</sub>) s</i> or <i>on T s</i> matches an object <i>o</i> if the
+   * type of <i>o</i> is a subtype of <i>T</i>. It is a static warning if
+   * <i>T</i> does not denote a type available in the lexical scope of the
    * catch clause.
    *
    * @param name the name of the non-type element
    */
-  static const StaticWarningCode NON_TYPE_IN_CATCH_CLAUSE = const StaticWarningCode.con1('NON_TYPE_IN_CATCH_CLAUSE', 58, "The name '{0}' is not a type and cannot be used in an on-catch clause");
-
-  /**
-   * 7.1.1 Operators: It is a static warning if the return type of the user-declared operator []= is
-   * explicitly declared and not void.
-   */
-  static const StaticWarningCode NON_VOID_RETURN_FOR_OPERATOR = const StaticWarningCode.con1('NON_VOID_RETURN_FOR_OPERATOR', 59, "The return type of the operator []= must be 'void'");
-
-  /**
-   * 7.3 Setters: It is a static warning if a setter declares a return type other than void.
-   */
-  static const StaticWarningCode NON_VOID_RETURN_FOR_SETTER = const StaticWarningCode.con1('NON_VOID_RETURN_FOR_SETTER', 60, "The return type of the setter must be 'void'");
-
-  /**
-   * 15.1 Static Types: A type <i>T</i> is malformed iff: * <i>T</i> has the form <i>id</i> or the
-   * form <i>prefix.id</i>, and in the enclosing lexical scope, the name <i>id</i> (respectively
-   * <i>prefix.id</i>) does not denote a type. * <i>T</i> denotes a type parameter in the
-   * enclosing lexical scope, but occurs in the signature or body of a static member. *
-   * <i>T</i> is a parameterized type of the form <i>G&lt;S<sub>1</sub>, .., S<sub>n</sub>&gt;</i>,
+  static const StaticWarningCode NON_TYPE_IN_CATCH_CLAUSE = const StaticWarningCode('NON_TYPE_IN_CATCH_CLAUSE', "The name '{0}' is not a type and cannot be used in an on-catch clause");
+
+  /**
+   * 7.1.1 Operators: It is a static warning if the return type of the
+   * user-declared operator []= is explicitly declared and not void.
+   */
+  static const StaticWarningCode NON_VOID_RETURN_FOR_OPERATOR = const StaticWarningCode('NON_VOID_RETURN_FOR_OPERATOR', "The return type of the operator []= must be 'void'");
+
+  /**
+   * 7.3 Setters: It is a static warning if a setter declares a return type
+   * other than void.
+   */
+  static const StaticWarningCode NON_VOID_RETURN_FOR_SETTER = const StaticWarningCode('NON_VOID_RETURN_FOR_SETTER', "The return type of the setter must be 'void'");
+
+  /**
+   * 15.1 Static Types: A type <i>T</i> is malformed iff:
+   * * <i>T</i> has the form <i>id</i> or the form <i>prefix.id</i>, and in the
+   *   enclosing lexical scope, the name <i>id</i> (respectively
+   *   <i>prefix.id</i>) does not denote a type.
+   * * <i>T</i> denotes a type parameter in the enclosing lexical scope, but
+   * occurs in the signature or body of a static member.
+   * * <i>T</i> is a parameterized type of the form <i>G&lt;S<sub>1</sub>, ..,
+   * S<sub>n</sub>&gt;</i>,
    *
    * Any use of a malformed type gives rise to a static warning.
    *
    * @param nonTypeName the name that is not a type
    */
-  static const StaticWarningCode NOT_A_TYPE = const StaticWarningCode.con1('NOT_A_TYPE', 61, "{0} is not a type");
-
-  /**
-   * 12.14.2 Binding Actuals to Formals: It is a static warning if <i>m &lt; h</i> or if <i>m &gt;
-   * n</i>.
+  static const StaticWarningCode NOT_A_TYPE = const StaticWarningCode('NOT_A_TYPE', "{0} is not a type");
+
+  /**
+   * 12.14.2 Binding Actuals to Formals: It is a static warning if <i>m &lt;
+   * h</i> or if <i>m &gt; n</i>.
    *
    * @param requiredCount the expected number of required arguments
    * @param argumentCount the actual number of positional arguments given
-   * @see #EXTRA_POSITIONAL_ARGUMENTS
-   */
-  static const StaticWarningCode NOT_ENOUGH_REQUIRED_ARGUMENTS = const StaticWarningCode.con1('NOT_ENOUGH_REQUIRED_ARGUMENTS', 62, "{0} required argument(s) expected, but {1} found");
-
-  /**
-   * 14.3 Parts: It is a static warning if the referenced part declaration <i>p</i> names a library
-   * other than the current library as the library to which <i>p</i> belongs.
+   * @see [EXTRA_POSITIONAL_ARGUMENTS]
+   */
+  static const StaticWarningCode NOT_ENOUGH_REQUIRED_ARGUMENTS = const StaticWarningCode('NOT_ENOUGH_REQUIRED_ARGUMENTS', "{0} required argument(s) expected, but {1} found");
+
+  /**
+   * 14.3 Parts: It is a static warning if the referenced part declaration
+   * <i>p</i> names a library other than the current library as the library to
+   * which <i>p</i> belongs.
    *
    * @param expectedLibraryName the name of expected library name
-   * @param actualLibraryName the non-matching actual library name from the "part of" declaration
-   */
-  static const StaticWarningCode PART_OF_DIFFERENT_LIBRARY = const StaticWarningCode.con1('PART_OF_DIFFERENT_LIBRARY', 63, "Expected this library to be part of '{0}', not '{1}'");
-
-  /**
-   * 7.6.2 Factories: It is a static warning if the function type of <i>k'</i> is not a subtype of
-   * the type of <i>k</i>.
+   * @param actualLibraryName the non-matching actual library name from the
+   *        "part of" declaration
+   */
+  static const StaticWarningCode PART_OF_DIFFERENT_LIBRARY = const StaticWarningCode('PART_OF_DIFFERENT_LIBRARY', "Expected this library to be part of '{0}', not '{1}'");
+
+  /**
+   * 7.6.2 Factories: It is a static warning if the function type of <i>k'</i>
+   * is not a subtype of the type of <i>k</i>.
    *
    * @param redirectedName the name of the redirected constructor
    * @param redirectingName the name of the redirecting constructor
    */
-  static const StaticWarningCode REDIRECT_TO_INVALID_FUNCTION_TYPE = const StaticWarningCode.con1('REDIRECT_TO_INVALID_FUNCTION_TYPE', 64, "The redirected constructor '{0}' has incompatible parameters with '{1}'");
-
-  /**
-   * 7.6.2 Factories: It is a static warning if the function type of <i>k'</i> is not a subtype of
-   * the type of <i>k</i>.
+  static const StaticWarningCode REDIRECT_TO_INVALID_FUNCTION_TYPE = const StaticWarningCode('REDIRECT_TO_INVALID_FUNCTION_TYPE', "The redirected constructor '{0}' has incompatible parameters with '{1}'");
+
+  /**
+   * 7.6.2 Factories: It is a static warning if the function type of <i>k'</i>
+   * is not a subtype of the type of <i>k</i>.
    *
    * @param redirectedName the name of the redirected constructor return type
    * @param redirectingName the name of the redirecting constructor return type
    */
-  static const StaticWarningCode REDIRECT_TO_INVALID_RETURN_TYPE = const StaticWarningCode.con1('REDIRECT_TO_INVALID_RETURN_TYPE', 65, "The return type '{0}' of the redirected constructor is not assignable to '{1}'");
-
-  /**
-   * 7.6.2 Factories: It is a static warning if type does not denote a class accessible in the
-   * current scope; if type does denote such a class <i>C</i> it is a static warning if the
-   * referenced constructor (be it <i>type</i> or <i>type.id</i>) is not a constructor of <i>C</i>.
-   */
-  static const StaticWarningCode REDIRECT_TO_MISSING_CONSTRUCTOR = const StaticWarningCode.con1('REDIRECT_TO_MISSING_CONSTRUCTOR', 66, "The constructor '{0}' could not be found in '{1}'");
-
-  /**
-   * 7.6.2 Factories: It is a static warning if type does not denote a class accessible in the
-   * current scope; if type does denote such a class <i>C</i> it is a static warning if the
-   * referenced constructor (be it <i>type</i> or <i>type.id</i>) is not a constructor of <i>C</i>.
-   */
-  static const StaticWarningCode REDIRECT_TO_NON_CLASS = const StaticWarningCode.con1('REDIRECT_TO_NON_CLASS', 67, "The name '{0}' is not a type and cannot be used in a redirected constructor");
-
-  /**
-   * 13.12 Return: Let <i>f</i> be the function immediately enclosing a return statement of the form
-   * <i>return;</i> It is a static warning if both of the following conditions hold:
-   * <ol>
+  static const StaticWarningCode REDIRECT_TO_INVALID_RETURN_TYPE = const StaticWarningCode('REDIRECT_TO_INVALID_RETURN_TYPE', "The return type '{0}' of the redirected constructor is not assignable to '{1}'");
+
+  /**
+   * 7.6.2 Factories: It is a static warning if type does not denote a class
+   * accessible in the current scope; if type does denote such a class <i>C</i>
+   * it is a static warning if the referenced constructor (be it <i>type</i> or
+   * <i>type.id</i>) is not a constructor of <i>C</i>.
+   */
+  static const StaticWarningCode REDIRECT_TO_MISSING_CONSTRUCTOR = const StaticWarningCode('REDIRECT_TO_MISSING_CONSTRUCTOR', "The constructor '{0}' could not be found in '{1}'");
+
+  /**
+   * 7.6.2 Factories: It is a static warning if type does not denote a class
+   * accessible in the current scope; if type does denote such a class <i>C</i>
+   * it is a static warning if the referenced constructor (be it <i>type</i> or
+   * <i>type.id</i>) is not a constructor of <i>C</i>.
+   */
+  static const StaticWarningCode REDIRECT_TO_NON_CLASS = const StaticWarningCode('REDIRECT_TO_NON_CLASS', "The name '{0}' is not a type and cannot be used in a redirected constructor");
+
+  /**
+   * 13.12 Return: Let <i>f</i> be the function immediately enclosing a return
+   * statement of the form <i>return;</i> It is a static warning if both of the
+   * following conditions hold:
    * * <i>f</i> is not a generative constructor.
    * * The return type of <i>f</i> may not be assigned to void.
-   * </ol>
-   */
-  static const StaticWarningCode RETURN_WITHOUT_VALUE = const StaticWarningCode.con1('RETURN_WITHOUT_VALUE', 68, "Missing return value after 'return'");
-
-  /**
-   * 12.16.3 Static Invocation: It is a static warning if <i>C</i> does not declare a static method
-   * or getter <i>m</i>.
+   */
+  static const StaticWarningCode RETURN_WITHOUT_VALUE = const StaticWarningCode('RETURN_WITHOUT_VALUE', "Missing return value after 'return'");
+
+  /**
+   * 12.16.3 Static Invocation: It is a static warning if <i>C</i> does not
+   * declare a static method or getter <i>m</i>.
    *
    * @param memberName the name of the instance member
    */
-  static const StaticWarningCode STATIC_ACCESS_TO_INSTANCE_MEMBER = const StaticWarningCode.con1('STATIC_ACCESS_TO_INSTANCE_MEMBER', 69, "Instance member '{0}' cannot be accessed using static access");
-
-  /**
-   * 13.9 Switch: It is a static warning if the type of <i>e</i> may not be assigned to the type of
-   * <i>e<sub>k</sub></i>.
-   */
-  static const StaticWarningCode SWITCH_EXPRESSION_NOT_ASSIGNABLE = const StaticWarningCode.con1('SWITCH_EXPRESSION_NOT_ASSIGNABLE', 70, "Type '{0}' of the switch expression is not assignable to the type '{1}' of case expressions");
-
-  /**
-   * 15.1 Static Types: It is a static warning to use a deferred type in a type annotation.
-   *
-   * @param name the name of the type that is deferred and being used in a type annotation
-   */
-  static const StaticWarningCode TYPE_ANNOTATION_DEFERRED_CLASS = const StaticWarningCode.con1('TYPE_ANNOTATION_DEFERRED_CLASS', 71, "The deferred type '{0}' cannot be used in a declaration, cast or type test");
-
-  /**
-   * 12.31 Type Test: It is a static warning if <i>T</i> does not denote a type available in the
-   * current lexical scope.
-   */
-  static const StaticWarningCode TYPE_TEST_NON_TYPE = const StaticWarningCode.con1('TYPE_TEST_NON_TYPE', 72, "The name '{0}' is not a type and cannot be used in an 'is' expression");
-
-  /**
-   * 10 Generics: However, a type parameter is considered to be a malformed type when referenced by
-   * a static member.
-   *
-   * 15.1 Static Types: Any use of a malformed type gives rise to a static warning. A malformed type
-   * is then interpreted as dynamic by the static type checker and the runtime.
-   */
-  static const StaticWarningCode TYPE_PARAMETER_REFERENCED_BY_STATIC = const StaticWarningCode.con1('TYPE_PARAMETER_REFERENCED_BY_STATIC', 73, "Static members cannot reference type parameters");
+  static const StaticWarningCode STATIC_ACCESS_TO_INSTANCE_MEMBER = const StaticWarningCode('STATIC_ACCESS_TO_INSTANCE_MEMBER', "Instance member '{0}' cannot be accessed using static access");
+
+  /**
+   * 13.9 Switch: It is a static warning if the type of <i>e</i> may not be
+   * assigned to the type of <i>e<sub>k</sub></i>.
+   */
+  static const StaticWarningCode SWITCH_EXPRESSION_NOT_ASSIGNABLE = const StaticWarningCode('SWITCH_EXPRESSION_NOT_ASSIGNABLE', "Type '{0}' of the switch expression is not assignable to the type '{1}' of case expressions");
+
+  /**
+   * 15.1 Static Types: It is a static warning to use a deferred type in a type
+   * annotation.
+   *
+   * @param name the name of the type that is deferred and being used in a type
+   *        annotation
+   */
+  static const StaticWarningCode TYPE_ANNOTATION_DEFERRED_CLASS = const StaticWarningCode('TYPE_ANNOTATION_DEFERRED_CLASS', "The deferred type '{0}' cannot be used in a declaration, cast or type test");
+
+  /**
+   * 12.31 Type Test: It is a static warning if <i>T</i> does not denote a type
+   * available in the current lexical scope.
+   */
+  static const StaticWarningCode TYPE_TEST_NON_TYPE = const StaticWarningCode('TYPE_TEST_NON_TYPE', "The name '{0}' is not a type and cannot be used in an 'is' expression");
+
+  /**
+   * 10 Generics: However, a type parameter is considered to be a malformed type
+   * when referenced by a static member.
+   *
+   * 15.1 Static Types: Any use of a malformed type gives rise to a static
+   * warning. A malformed type is then interpreted as dynamic by the static type
+   * checker and the runtime.
+   */
+  static const StaticWarningCode TYPE_PARAMETER_REFERENCED_BY_STATIC = const StaticWarningCode('TYPE_PARAMETER_REFERENCED_BY_STATIC', "Static members cannot reference type parameters");
 
   /**
    * 12.16.3 Static Invocation: A static method invocation <i>i</i> has the form
-   * <i>C.m(a<sub>1</sub>, &hellip;, a<sub>n</sub>, x<sub>n+1</sub>: a<sub>n+1</sub>, &hellip;
-   * x<sub>n+k</sub>: a<sub>n+k</sub>)</i>. It is a static warning if <i>C</i> does not denote a
-   * class in the current scope.
+   * <i>C.m(a<sub>1</sub>, &hellip;, a<sub>n</sub>, x<sub>n+1</sub>:
+   * a<sub>n+1</sub>, &hellip; x<sub>n+k</sub>: a<sub>n+k</sub>)</i>. It is a
+   * static warning if <i>C</i> does not denote a class in the current scope.
    *
    * @param undefinedClassName the name of the undefined class
    */
-  static const StaticWarningCode UNDEFINED_CLASS = const StaticWarningCode.con1('UNDEFINED_CLASS', 74, "Undefined class '{0}'");
+  static const StaticWarningCode UNDEFINED_CLASS = const StaticWarningCode('UNDEFINED_CLASS', "Undefined class '{0}'");
 
   /**
    * Same as [UNDEFINED_CLASS], but to catch using "boolean" instead of "bool".
    */
-  static const StaticWarningCode UNDEFINED_CLASS_BOOLEAN = const StaticWarningCode.con1('UNDEFINED_CLASS_BOOLEAN', 75, "Undefined class 'boolean'; did you mean 'bool'?");
-
-  /**
-   * 12.17 Getter Invocation: It is a static warning if there is no class <i>C</i> in the enclosing
-   * lexical scope of <i>i</i>, or if <i>C</i> does not declare, implicitly or explicitly, a getter
-   * named <i>m</i>.
+  static const StaticWarningCode UNDEFINED_CLASS_BOOLEAN = const StaticWarningCode('UNDEFINED_CLASS_BOOLEAN', "Undefined class 'boolean'; did you mean 'bool'?");
+
+  /**
+   * 12.17 Getter Invocation: It is a static warning if there is no class
+   * <i>C</i> in the enclosing lexical scope of <i>i</i>, or if <i>C</i> does
+   * not declare, implicitly or explicitly, a getter named <i>m</i>.
    *
    * @param getterName the name of the getter
-   * @param enclosingType the name of the enclosing type where the getter is being looked for
-   */
-  static const StaticWarningCode UNDEFINED_GETTER = const StaticWarningCode.con1('UNDEFINED_GETTER', 76, "There is no such getter '{0}' in '{1}'");
-
-  /**
-   * 12.30 Identifier Reference: It is as static warning if an identifier expression of the form
-   * <i>id</i> occurs inside a top level or static function (be it function, method, getter, or
-   * setter) or variable initializer and there is no declaration <i>d</i> with name <i>id</i> in the
+   * @param enclosingType the name of the enclosing type where the getter is
+   *        being looked for
+   */
+  static const StaticWarningCode UNDEFINED_GETTER = const StaticWarningCode('UNDEFINED_GETTER', "There is no such getter '{0}' in '{1}'");
+
+  /**
+   * 12.30 Identifier Reference: It is as static warning if an identifier
+   * expression of the form <i>id</i> occurs inside a top level or static
+   * function (be it function, method, getter, or setter) or variable
+   * initializer and there is no declaration <i>d</i> with name <i>id</i> in the
    * lexical scope enclosing the expression.
    *
    * @param name the name of the identifier
    */
-  static const StaticWarningCode UNDEFINED_IDENTIFIER = const StaticWarningCode.con1('UNDEFINED_IDENTIFIER', 77, "Undefined name '{0}'");
-
-  /**
-   * 12.14.2 Binding Actuals to Formals: Furthermore, each <i>q<sub>i</sub></i>, <i>1<=i<=l</i>,
-   * must have a corresponding named parameter in the set {<i>p<sub>n+1</sub></i> &hellip;
-   * <i>p<sub>n+k</sub></i>} or a static warning occurs.
+  static const StaticWarningCode UNDEFINED_IDENTIFIER = const StaticWarningCode('UNDEFINED_IDENTIFIER', "Undefined name '{0}'");
+
+  /**
+   * 12.14.2 Binding Actuals to Formals: Furthermore, each <i>q<sub>i</sub></i>,
+   * <i>1<=i<=l</i>, must have a corresponding named parameter in the set
+   * {<i>p<sub>n+1</sub></i> &hellip; <i>p<sub>n+k</sub></i>} or a static
+   * warning occurs.
    *
    * @param name the name of the requested named parameter
    */
-  static const StaticWarningCode UNDEFINED_NAMED_PARAMETER = const StaticWarningCode.con1('UNDEFINED_NAMED_PARAMETER', 78, "The named parameter '{0}' is not defined");
-
-  /**
-   * 12.18 Assignment: It is as static warning if an assignment of the form <i>v = e</i> occurs
-   * inside a top level or static function (be it function, method, getter, or setter) or variable
-   * initializer and there is no declaration <i>d</i> with name <i>v=</i> in the lexical scope
-   * enclosing the assignment.
-   *
-   * 12.18 Assignment: It is a static warning if there is no class <i>C</i> in the enclosing lexical
-   * scope of the assignment, or if <i>C</i> does not declare, implicitly or explicitly, a setter
-   * <i>v=</i>.
+  static const StaticWarningCode UNDEFINED_NAMED_PARAMETER = const StaticWarningCode('UNDEFINED_NAMED_PARAMETER', "The named parameter '{0}' is not defined");
+
+  /**
+   * 12.18 Assignment: It is as static warning if an assignment of the form
+   * <i>v = e</i> occurs inside a top level or static function (be it function,
+   * method, getter, or setter) or variable initializer and there is no
+   * declaration <i>d</i> with name <i>v=</i> in the lexical scope enclosing the
+   * assignment.
+   *
+   * 12.18 Assignment: It is a static warning if there is no class <i>C</i> in
+   * the enclosing lexical scope of the assignment, or if <i>C</i> does not
+   * declare, implicitly or explicitly, a setter <i>v=</i>.
    *
    * @param setterName the name of the getter
-   * @param enclosingType the name of the enclosing type where the setter is being looked for
-   */
-  static const StaticWarningCode UNDEFINED_SETTER = const StaticWarningCode.con1('UNDEFINED_SETTER', 79, "There is no such setter '{0}' in '{1}'");
-
-  /**
-   * 12.16.3 Static Invocation: It is a static warning if <i>C</i> does not declare a static method
-   * or getter <i>m</i>.
+   * @param enclosingType the name of the enclosing type where the setter is
+   *        being looked for
+   */
+  static const StaticWarningCode UNDEFINED_SETTER = const StaticWarningCode('UNDEFINED_SETTER', "There is no such setter '{0}' in '{1}'");
+
+  /**
+   * 12.16.3 Static Invocation: It is a static warning if <i>C</i> does not
+   * declare a static method or getter <i>m</i>.
    *
    * @param methodName the name of the method
-   * @param enclosingType the name of the enclosing type where the method is being looked for
-   */
-  static const StaticWarningCode UNDEFINED_STATIC_METHOD_OR_GETTER = const StaticWarningCode.con1('UNDEFINED_STATIC_METHOD_OR_GETTER', 80, "There is no such static method, getter or setter '{0}' in '{1}'");
+   * @param enclosingType the name of the enclosing type where the method is
+   *        being looked for
+   */
+  static const StaticWarningCode UNDEFINED_STATIC_METHOD_OR_GETTER = const StaticWarningCode('UNDEFINED_STATIC_METHOD_OR_GETTER', "There is no such static method, getter or setter '{0}' in '{1}'");
 
   /**
    * 7.2 Getters: It is a static warning if the return type of a getter is void.
    */
-  static const StaticWarningCode VOID_RETURN_FOR_GETTER = const StaticWarningCode.con1('VOID_RETURN_FOR_GETTER', 81, "The return type of the getter must not be 'void'");
-
-  static const List<StaticWarningCode> values = const [
-      AMBIGUOUS_IMPORT,
-      ARGUMENT_TYPE_NOT_ASSIGNABLE,
-      ASSIGNMENT_TO_CONST,
-      ASSIGNMENT_TO_FINAL,
-      ASSIGNMENT_TO_FINAL_NO_SETTER,
-      ASSIGNMENT_TO_FUNCTION,
-      ASSIGNMENT_TO_METHOD,
-      CASE_BLOCK_NOT_TERMINATED,
-      CAST_TO_NON_TYPE,
-      CONCRETE_CLASS_WITH_ABSTRACT_MEMBER,
-      CONFLICTING_DART_IMPORT,
-      CONFLICTING_INSTANCE_GETTER_AND_SUPERCLASS_MEMBER,
-      CONFLICTING_INSTANCE_METHOD_SETTER,
-      CONFLICTING_INSTANCE_METHOD_SETTER2,
-      CONFLICTING_INSTANCE_SETTER_AND_SUPERCLASS_MEMBER,
-      CONFLICTING_STATIC_GETTER_AND_INSTANCE_SETTER,
-      CONFLICTING_STATIC_SETTER_AND_INSTANCE_MEMBER,
-      CONST_WITH_ABSTRACT_CLASS,
-      EQUAL_KEYS_IN_MAP,
-      EXPORT_DUPLICATED_LIBRARY_NAME,
-      EXTRA_POSITIONAL_ARGUMENTS,
-      FIELD_INITIALIZED_IN_INITIALIZER_AND_DECLARATION,
-      FINAL_INITIALIZED_IN_DECLARATION_AND_CONSTRUCTOR,
-      FIELD_INITIALIZER_NOT_ASSIGNABLE,
-      FIELD_INITIALIZING_FORMAL_NOT_ASSIGNABLE,
-      FINAL_NOT_INITIALIZED,
-      FUNCTION_WITHOUT_CALL,
-      IMPORT_DUPLICATED_LIBRARY_NAME,
-      IMPORT_OF_NON_LIBRARY,
-      INCONSISTENT_METHOD_INHERITANCE_GETTER_AND_METHOD,
-      INSTANCE_METHOD_NAME_COLLIDES_WITH_SUPERCLASS_STATIC,
-      INVALID_GETTER_OVERRIDE_RETURN_TYPE,
-      INVALID_METHOD_OVERRIDE_NAMED_PARAM_TYPE,
-      INVALID_METHOD_OVERRIDE_NORMAL_PARAM_TYPE,
-      INVALID_METHOD_OVERRIDE_OPTIONAL_PARAM_TYPE,
-      INVALID_METHOD_OVERRIDE_RETURN_TYPE,
-      INVALID_OVERRIDE_DIFFERENT_DEFAULT_VALUES_NAMED,
-      INVALID_OVERRIDE_DIFFERENT_DEFAULT_VALUES_POSITIONAL,
-      INVALID_OVERRIDE_NAMED,
-      INVALID_OVERRIDE_POSITIONAL,
-      INVALID_OVERRIDE_REQUIRED,
-      INVALID_SETTER_OVERRIDE_NORMAL_PARAM_TYPE,
-      LIST_ELEMENT_TYPE_NOT_ASSIGNABLE,
-      MAP_KEY_TYPE_NOT_ASSIGNABLE,
-      MAP_VALUE_TYPE_NOT_ASSIGNABLE,
-      MISMATCHED_GETTER_AND_SETTER_TYPES,
-      MISMATCHED_GETTER_AND_SETTER_TYPES_FROM_SUPERTYPE,
-      MIXED_RETURN_TYPES,
-      NEW_WITH_ABSTRACT_CLASS,
-      NEW_WITH_INVALID_TYPE_PARAMETERS,
-      NEW_WITH_NON_TYPE,
-      NEW_WITH_UNDEFINED_CONSTRUCTOR,
-      NEW_WITH_UNDEFINED_CONSTRUCTOR_DEFAULT,
-      NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER_FIVE_PLUS,
-      NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER_FOUR,
-      NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER_ONE,
-      NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER_THREE,
-      NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER_TWO,
-      NON_TYPE_IN_CATCH_CLAUSE,
-      NON_VOID_RETURN_FOR_OPERATOR,
-      NON_VOID_RETURN_FOR_SETTER,
-      NOT_A_TYPE,
-      NOT_ENOUGH_REQUIRED_ARGUMENTS,
-      PART_OF_DIFFERENT_LIBRARY,
-      REDIRECT_TO_INVALID_FUNCTION_TYPE,
-      REDIRECT_TO_INVALID_RETURN_TYPE,
-      REDIRECT_TO_MISSING_CONSTRUCTOR,
-      REDIRECT_TO_NON_CLASS,
-      RETURN_WITHOUT_VALUE,
-      STATIC_ACCESS_TO_INSTANCE_MEMBER,
-      SWITCH_EXPRESSION_NOT_ASSIGNABLE,
-      TYPE_ANNOTATION_DEFERRED_CLASS,
-      TYPE_TEST_NON_TYPE,
-      TYPE_PARAMETER_REFERENCED_BY_STATIC,
-      UNDEFINED_CLASS,
-      UNDEFINED_CLASS_BOOLEAN,
-      UNDEFINED_GETTER,
-      UNDEFINED_IDENTIFIER,
-      UNDEFINED_NAMED_PARAMETER,
-      UNDEFINED_SETTER,
-      UNDEFINED_STATIC_METHOD_OR_GETTER,
-      VOID_RETURN_FOR_GETTER];
-
-  /**
-   * The template used to create the message to be displayed for this error.
-   */
-  final String message;
-
-  /**
-   * The template used to create the correction to be displayed for this error, or `null` if
-   * there is no correction information for this error.
-   */
-  final String correction;
-
-  /**
-   * Initialize a newly created error code to have the given message.
-   *
-   * @param message the message template used to create the message to be displayed for the error
-   */
-  const StaticWarningCode.con1(String name, int ordinal, String message) : this.con2(name, ordinal, message, null);
-
-  /**
-   * Initialize a newly created error code to have the given message and correction.
-   *
-   * @param message the template used to create the message to be displayed for the error
-   * @param correction the template used to create the correction to be displayed for the error
-   */
-  const StaticWarningCode.con2(String name, int ordinal, this.message, this.correction) : super(name, ordinal);
+  static const StaticWarningCode VOID_RETURN_FOR_GETTER = const StaticWarningCode('VOID_RETURN_FOR_GETTER', "The return type of the getter must not be 'void'");
+
+  /**
+   * Initialize a newly created error code to have the given [name]. The message
+   * associated with the error will be created from the given [message]
+   * template. The correction associated with the error will be created from the
+   * given [correction] template.
+   */
+  const StaticWarningCode(String name, String message, [String correction]) : super(name, message, correction);
 
   @override
   ErrorSeverity get errorSeverity => ErrorType.STATIC_WARNING.severity;
 
   @override
   ErrorType get type => ErrorType.STATIC_WARNING;
-
-  @override
-  String get uniqueName => "$runtimeType.$name";
 }
 
 /**
- * The enumeration `TodoCode` defines the single TODO `ErrorCode`.
+ * The class `TodoCode` defines the single TODO error code.
  */
-class TodoCode extends Enum<TodoCode> implements ErrorCode {
+class TodoCode extends ErrorCode {
   /**
    * The single enum of TodoCode.
    */
-  static const TodoCode TODO = const TodoCode('TODO', 0);
-
-  static const List<TodoCode> values = const [TODO];
+  static const TodoCode TODO = const TodoCode('TODO');
 
   /**
    * This matches the two common Dart task styles
    *
    * * TODO:
    * * TODO(username):
    *
    * As well as
    * * TODO
    *
    * But not
    * * todo
    * * TODOS
    */
   static RegExp TODO_REGEX = new RegExp("([\\s/\\*])((TODO[^\\w\\d][^\\r\\n]*)|(TODO:?\$))");
 
-  const TodoCode(String name, int ordinal) : super(name, ordinal);
-
-  @override
-  String get correction => null;
+  /**
+   * Initialize a newly created error code to have the given [name].
+   */
+  const TodoCode(String name) : super(name, "{0}");
 
   @override
   ErrorSeverity get errorSeverity => ErrorSeverity.INFO;
 
   @override
-  String get message => "{0}";
-
-  @override
   ErrorType get type => ErrorType.TODO;
-
-  @override
-  String get uniqueName => "$runtimeType.$name";
 }