Stop running pub get at gclient sync time and fix build bugs

mojo/public/dart/third_party/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.
+
+library engine.error;
+
+import 'dart:collection';
+
+import 'ast.dart' show AstNode;
+import 'element.dart';
+import 'java_core.dart';
+import 'scanner.dart' show Token;
+import 'source.dart';
+
+/**
+ * An error discovered during the analysis of some Dart code.
+ *
+ * See [AnalysisErrorListener].
+ */
+class AnalysisError {
+  /**
+   * An empty array of errors used when no errors are expected.
+   */
+  static const List<AnalysisError> NO_ERRORS = const <AnalysisError>[];
+
+  /**
+   * A [Comparator] that sorts by the name of the file that the [AnalysisError]
+   * was found.
+   */
+  static Comparator<AnalysisError> FILE_COMPARATOR = (AnalysisError o1,
+      AnalysisError o2) => o1.source.shortName.compareTo(o2.source.shortName);
+
+  /**
+   * A [Comparator] that sorts error codes first by their severity (errors
+   * first, warnings second), and then by the the error code type.
+   */
+  static Comparator<AnalysisError> ERROR_CODE_COMPARATOR = (AnalysisError o1,
+      AnalysisError o2) {
+    ErrorCode errorCode1 = o1.errorCode;
+    ErrorCode errorCode2 = o2.errorCode;
+    ErrorSeverity errorSeverity1 = errorCode1.errorSeverity;
+    ErrorSeverity errorSeverity2 = errorCode2.errorSeverity;
+    if (errorSeverity1 == errorSeverity2) {
+      ErrorType errorType1 = errorCode1.type;
+      ErrorType errorType2 = errorCode2.type;
+      return errorType1.compareTo(errorType2);
+    } else {
+      return errorSeverity2.compareTo(errorSeverity1);
+    }
+  };
+
+  /**
+   * The error code associated with the error.
+   */
+  final ErrorCode errorCode;
+
+  /**
+   * The localized error message.
+   */
+  String _message;
+
+  /**
+   * The correction to be displayed for this error, or `null` if there is no
+   * correction information for this error.
+   */
+  String _correction;
+
+  /**
+   * The source in which the error occurred, or `null` if unknown.
+   */
+  Source source;
+
+  /**
+   * The character offset from the beginning of the source (zero based) where
+   * the error occurred.
+   */
+  int offset = 0;
+
+  /**
+   * The number of characters from the offset to the end of the source which
+   * encompasses the compilation error.
+   */
+  int length = 0;
+
+  /**
+   * A flag indicating whether this error can be shown to be a non-issue because
+   * of the result of type propagation.
+   */
+  bool isStaticOnly = false;
+
+  /**
+   * Initialize a newly created analysis error. The error is associated with the
+   * given [source] and is located at the given [offset] with the given
+   * [length]. The error will have the given [errorCode] and the list of
+   * [arguments] will be used to complete the message.
+   */
+  AnalysisError(this.source, this.offset, this.length, this.errorCode,
+      [List<Object> arguments]) {
+    this._message = formatList(errorCode.message, arguments);
+    String correctionTemplate = errorCode.correction;
+    if (correctionTemplate != null) {
+      this._correction = formatList(correctionTemplate, arguments);
+    }
+  }
+
+  /**
+   * Initialize a newly created analysis error for the specified [source]. The
+   * error will have the given [errorCode] and the list of [arguments] will be
+   * used to complete the message. The error has no location information.
+   */
+  @deprecated // Use new AnalysisError(source, 0, 0, errorCode, arguments)
+  AnalysisError.con1(Source source, ErrorCode errorCode,
+      [List<Object> arguments])
+      : this(source, 0, 0, errorCode, arguments);
+
+  /**
+   * Initialize a newly created analysis error for the specified [source] at the
+   * given [offset] with the given [length]. The error will have the given
+   * [errorCode] and the list of [arguments] will be used to complete the
+   * message.
+   */
+  @deprecated // Use new AnalysisError(source, offset, length, errorCode, arguments)
+  AnalysisError.con2(Source source, int offset, int length, ErrorCode errorCode,
+      [List<Object> arguments])
+      : this(source, offset, length, errorCode, arguments);
+
+  /**
+   * 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.
+   */
+  String get correction => _correction;
+
+  @override
+  int get hashCode {
+    int hashCode = offset;
+    hashCode ^= (_message != null) ? _message.hashCode : 0;
+    hashCode ^= (source != null) ? source.hashCode : 0;
+    return hashCode;
+  }
+
+  /**
+   * Return the message to be displayed for this error. The message should
+   * indicate what is wrong and why it is wrong.
+   */
+  String get message => _message;
+
+  @override
+  bool operator ==(Object obj) {
+    if (identical(obj, this)) {
+      return true;
+    }
+    // prepare other AnalysisError
+    if (obj is! AnalysisError) {
+      return false;
+    }
+    AnalysisError other = obj as AnalysisError;
+    // Quick checks.
+    if (!identical(errorCode, other.errorCode)) {
+      return false;
+    }
+    if (offset != other.offset || length != other.length) {
+      return false;
+    }
+    if (isStaticOnly != other.isStaticOnly) {
+      return false;
+    }
+    // Deep checks.
+    if (_message != other._message) {
+      return false;
+    }
+    if (source != other.source) {
+      return false;
+    }
+    // OK
+    return true;
+  }
+
+  /**
+   * Return the value of the given [property], or `null` if the given property
+   * is not defined for this error.
+   */
+  Object getProperty(ErrorProperty property) => null;
+
+  @override
+  String toString() {
+    StringBuffer buffer = new StringBuffer();
+    buffer.write((source != null) ? source.fullName : "<unknown source>");
+    buffer.write("(");
+    buffer.write(offset);
+    buffer.write("..");
+    buffer.write(offset + length - 1);
+    buffer.write("): ");
+    //buffer.write("(" + lineNumber + ":" + columnNumber + "): ");
+    buffer.write(_message);
+    return buffer.toString();
+  }
+
+  /**
+   * Merge all of the errors in the lists in the given list of [errorLists] into
+   * a single list of errors.
+   */
+  static List<AnalysisError> mergeLists(List<List<AnalysisError>> errorLists) {
+    Set<AnalysisError> errors = new HashSet<AnalysisError>();
+    for (List<AnalysisError> errorList in errorLists) {
+      errors.addAll(errorList);
+    }
+    return errors.toList();
+  }
+}
+
+/**
+ * An object that listen for [AnalysisError]s being produced by the analysis
+ * engine.
+ */
+abstract class AnalysisErrorListener {
+  /**
+   * An error listener that ignores errors that are reported to it.
+   */
+  static final AnalysisErrorListener NULL_LISTENER =
+      new AnalysisErrorListener_NULL_LISTENER();
+
+  /**
+   * This method is invoked when an [error] has been found by the analysis
+   * engine.
+   */
+  void onError(AnalysisError error);
+}
+
+/**
+ * An [AnalysisErrorListener] that ignores error.
+ */
+class AnalysisErrorListener_NULL_LISTENER implements AnalysisErrorListener {
+  @override
+  void onError(AnalysisError event) {
+    // Ignore errors
+  }
+}
+
+/**
+ * An [AnalysisError] that can have arbitrary properties associated with it.
+ */
+class AnalysisErrorWithProperties extends AnalysisError {
+  /**
+   * The properties associated with this error.
+   */
+  HashMap<ErrorProperty, Object> _propertyMap =
+      new HashMap<ErrorProperty, Object>();
+
+  /**
+   * Initialize a newly created analysis error. The error is associated with the
+   * given [source] and is located at the given [offset] with the given
+   * [length]. The error will have the given [errorCode] and the list of
+   * [arguments] will be used to complete the message.
+   */
+  AnalysisErrorWithProperties(
+      Source source, int offset, int length, ErrorCode errorCode,
+      [List<Object> arguments])
+      : super(source, offset, length, errorCode, arguments);
+
+  /**
+   * Initialize a newly created analysis error for the specified [source]. The
+   * error will have the given [errorCode] and the list of [arguments] will be
+   * used to complete the message. The error has no location information.
+   */
+  @deprecated // Use new AnalysisErrorWithProperties(source, 0, 0, errorCode, arguments)
+  AnalysisErrorWithProperties.con1(Source source, ErrorCode errorCode,
+      [List<Object> arguments])
+      : this(source, 0, 0, errorCode, arguments);
+
+  /**
+   * Initialize a newly created analysis error for the specified [source] at the
+   * given [offset] with the given [length]. The error will have the given
+   * [errorCode] and the list of [arguments] will be used to complete the
+   * message.
+   */
+  @deprecated // Use new AnalysisErrorWithProperties(source, offset, length, errorCode, arguments)
+  AnalysisErrorWithProperties.con2(
+      Source source, int offset, int length, ErrorCode errorCode,
+      [List<Object> arguments])
+      : this(source, offset, length, errorCode, arguments);
+
+  @override
+  Object getProperty(ErrorProperty property) => _propertyMap[property];
+
+  /**
+   * Set the value of the given [property] to the given [value]. Using a value
+   * of `null` will effectively remove the property from this error.
+   */
+  void setProperty(ErrorProperty property, Object value) {
+    _propertyMap[property] = value;
+  }
+}
+
+/**
+ * An [AnalysisErrorListener] that keeps track of whether any 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.
+   */
+  bool get errorReported => _errorReported;
+
+  @override
+  void onError(AnalysisError error) {
+    _errorReported = true;
+  }
+}
+
+/**
+ * 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 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(
+          'CONST_CONSTRUCTOR_FIELD_TYPE_MISMATCH',
+          "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(
+          'CONST_CONSTRUCTOR_PARAM_TYPE_MISMATCH',
+          "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.
+   *
+   * Parameters:
+   * 0: the name of the type of the initializer expression
+   * 1: the name of the type of the field
+   */
+  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>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',
+          "The object type '{0}' cannot be assigned to a variable of type '{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 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;
+}
+
+/**
+ * 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 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.
+   *
+   * Parameters:
+   * 0: the name of the ambiguous element
+   * 1: the name of the first library that the type is found
+   * 2: 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.
+   *
+   * Parameters:
+   * 0: 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 used 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('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('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('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.
+   *
+   * Parameters:
+   * 0: the name of the uninitialized final variable
+   */
+  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',
+          "In constant expressions, operand(s) of this operator must be of type 'bool'");
+
+  /**
+   * 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',
+          "In constant expressions, operands of this operator must be of type 'bool', 'num', 'String' or 'null'");
+
+  /**
+   * 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',
+          "In constant expressions, operand(s) of this operator must be of type 'int'");
+
+  /**
+   * 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',
+          "In constant expressions, operand(s) of this operator must be of type 'num'");
+
+  /**
+   * 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.
+   *
+   * Parameters:
+   * 0: the name of the type being referenced (<i>S</i>)
+   * 1: the number of type parameters that were declared
+   * 2: the number of type arguments provided
+   *
+   * See [CompileTimeErrorCode.NEW_WITH_INVALID_TYPE_PARAMETERS], and
+   * [StaticTypeWarningCode.WRONG_NUMBER_OF_TYPE_ARGUMENTS].
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the name of the non-type element
+   */
+  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>.
+   *
+   * Parameters:
+   * 0: the name of the type
+   * 1: the name of the requested constant constructor
+   */
+  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>.
+   *
+   * Parameters:
+   * 0: the name of the type
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the name of the duplicate entity
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the name of the duplicate entity
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the name of the class that has conflicting instance/static members
+   * 1: the name of the conflicting members
+   *
+   * 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.
+   *
+   * Parameters:
+   * 0: the uri pointing to a library
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the uri pointing to a non-library declaration
+   */
+  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>.
+   *
+   * Parameters:
+   * 0: the name of the superclass that was not found
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the name of the type that cannot be extended
+   *
+   * 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.
+   *
+   * Parameters:
+   * 0: the name of the type that cannot be extended
+   *
+   * See [IMPLEMENTS_DEFERRED_CLASS], and [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.
+   *
+   * Parameters:
+   * 0: the maximum number of positional arguments
+   * 1: the actual number of positional arguments given
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the name of the field in question
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the conflicting name of the getter and method
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the name of the type that cannot be extended
+   *
+   * See [EXTENDS_DEFERRED_CLASS], and [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.
+   *
+   * Parameters:
+   * 0: the name of the type that cannot be implemented
+   *
+   * 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>.
+   *
+   * Parameters:
+   * 0: the name of the interface that was not found
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the name of the class that is implemented more than once
+   */
+  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>.
+   *
+   * Parameters:
+   * 0: 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.
+   *
+   * Parameters:
+   * 0: the name of the type in question
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the uri pointing to a library
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the uri pointing to a non-library declaration
+   *
+   * 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>.
+   *
+   * Parameters:
+   * 0: the expression source code that is the unexpected type
+   * 1: the name of the expected type
+   */
+  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.
+   *
+   * Parameters:
+   * 0: 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.
+   *
+   * Parameters:
+   * 0: 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('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.
+   *
+   * Parameters:
+   * 0: the name of the initializing formal that is not an instance variable in
+   *    the immediately enclosing class
+   *
+   * See [INITIALIZING_FORMAL_FOR_STATIC_FIELD], and
+   * [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.
+   *
+   * Parameters:
+   * 0: 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('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.
+   *
+   * Parameters:
+   * 0: the name of the 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.
+   *
+   * Parameters:
+   * 0: the name of the type parameter
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the URI that is invalid
+   *
+   * 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.
+   *
+   * Parameters:
+   * 0: the name of the unresolvable label
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the name of the unresolvable label
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the conflicting name of the getter and method
+   */
+  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('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('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.
+   *
+   * Parameters:
+   * 0: the name of the constant that is missing
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the name of the mixin that is invalid
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the name of the type that cannot be extended
+   *
+   * See [EXTENDS_DEFERRED_CLASS], and [IMPLEMENTS_DEFERRED_CLASS].
+   */
+  static const CompileTimeErrorCode MIXIN_DEFERRED_CLASS =
+      const CompileTimeErrorCode('MIXIN_DEFERRED_CLASS',
+          "This class cannot mixin the deferred class '{0}'");
+
+  /**
+   * Not yet in the spec, but consistent with VM behavior.  It is a
+   * compile-time error if all of the constructors of a mixin's base class have
+   * at least one optional parameter (since only constructors that lack
+   * optional parameters can be forwarded to the mixin).  See
+   * https://code.google.com/p/dart/issues/detail?id=15101#c4
+   */
+  static const CompileTimeErrorCode MIXIN_HAS_NO_CONSTRUCTORS =
+      const CompileTimeErrorCode('MIXIN_HAS_NO_CONSTRUCTORS',
+          "This mixin application is invalid because all of the constructors "
+          "in the base class '{0}' have optional parameters.");
+
+  /**
+   * 9 Mixins: It is a compile-time error if a mixin is derived from a class
+   * whose superclass is not Object.
+   *
+   * Parameters:
+   * 0: the name of the mixin that is invalid
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the name of the type that cannot be extended
+   *
+   * 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(
+          '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(
+          '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_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_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('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.
+   *
+   * Parameters:
+   * 0: the expected number of required arguments
+   * 1: the actual number of positional arguments given
+   */
+  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('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.
+   *
+   * Parameters:
+   * 0: the uri pointing to a non-library declaration
+   */
+  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");
+
+  /**
+   * 16.32 Identifier Reference: If d is a prefix p, a compile-time error
+   * occurs unless the token immediately following d is '.'.
+   */
+  static const CompileTimeErrorCode PREFIX_IDENTIFIER_NOT_FOLLOWED_BY_DOT =
+      const CompileTimeErrorCode('PREFIX_IDENTIFIER_NOT_FOLLOWED_BY_DOT',
+          "The name '{0}' refers to an import prefix, so it must be followed by '.'");
+
+  /**
+   * 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',
+          "Compile-time constant expression depends on itself");
+
+  /**
+   * 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('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.
+   *
+   * 7.9 Superclasses: It is a compile-time error if a class <i>C</i> is a
+   * superclass of itself.
+   *
+   * Parameters:
+   * 0: the name of the class that implements itself recursively
+   * 1: a string representation of the implements loop
+   */
+  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.
+   *
+   * 7.9 Superclasses: It is a compile-time error if a class <i>C</i> is a
+   * superclass of itself.
+   *
+   * Parameters:
+   * 0: the name of the class that implements itself recursively
+   */
+  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.
+   *
+   * 7.9 Superclasses: It is a compile-time error if a class <i>C</i> is a
+   * superclass of itself.
+   *
+   * Parameters:
+   * 0: the name of the class that implements itself recursively
+   */
+  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.
+   *
+   * 7.9 Superclasses: It is a compile-time error if a class <i>C</i> is a
+   * superclass of itself.
+   *
+   * Parameters:
+   * 0: the name of the class that implements itself recursively
+   */
+  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(
+          '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.
+   *
+   * Parameters:
+   * 0: the name of the type used in the instance creation that should be
+   *    limited by the bound as specified in the class declaration
+   * 1: the name of the bounding type
+   *
+   * 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('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('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.
+   *
+   * Parameters:
+   * 0: the name of the requested named parameter
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the URI pointing to a non-existent file
+   *
+   * 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.
+   *
+   * Parameters:
+   * 0: the name of the declared operator
+   * 1: the number of parameters expected
+   * 2: 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.
+   *
+   * Parameters:
+   * 0: 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;
+}
+
+/**
+ * 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 {
+  /**
+   * An empty list of error codes.
+   */
+  static const List<ErrorCode> EMPTY_LIST = const <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 properties that can be associated with an [AnalysisError].
+ */
+class ErrorProperty extends Enum<ErrorProperty> {
+  /**
+   * A property whose value is a list of [FieldElement]s that are final, but
+   * not initialized by a constructor.
+   */
+  static const ErrorProperty NOT_INITIALIZED_FIELDS =
+      const ErrorProperty('NOT_INITIALIZED_FIELDS', 0);
+
+  /**
+   * A property whose value is the name of the library that is used by all
+   * of the "part of" directives, so should be used in the "library" directive.
+   * Is `null` if there is no a single name used by all of the parts.
+   */
+  static const ErrorProperty PARTS_LIBRARY_NAME =
+      const ErrorProperty('PARTS_LIBRARY_NAME', 1);
+
+  /**
+   * A property whose value is a list of [ExecutableElement] that should
+   * be but are not implemented by a concrete class.
+   */
+  static const ErrorProperty UNIMPLEMENTED_METHODS =
+      const ErrorProperty('UNIMPLEMENTED_METHODS', 2);
+
+  static const List<ErrorProperty> values = const [
+    NOT_INITIALIZED_FIELDS,
+    PARTS_LIBRARY_NAME,
+    UNIMPLEMENTED_METHODS
+  ];
+
+  const ErrorProperty(String name, int ordinal) : super(name, ordinal);
+}
+
+/**
+ * An object used to create analysis errors and report then to an error
+ * listener.
+ */
+class ErrorReporter {
+  /**
+   * The error listener to which errors will be reported.
+   */
+  final AnalysisErrorListener _errorListener;
+
+  /**
+   * The default source to be used when reporting errors.
+   */
+  final Source _defaultSource;
+
+  /**
+   * The source to be used when reporting errors.
+   */
+  Source _source;
+
+  /**
+   * Initialize a newly created error reporter that will report errors to the
+   * given [_errorListener]. Errors will be reported against the
+   * [_defaultSource] unless another source is provided later.
+   */
+  ErrorReporter(this._errorListener, this._defaultSource) {
+    if (_errorListener == null) {
+      throw new IllegalArgumentException("An error listener must be provided");
+    } else if (_defaultSource == null) {
+      throw new IllegalArgumentException("A default source must be provided");
+    }
+    this._source = _defaultSource;
+  }
+
+  Source get source => _source;
+
+  /**
+   * Set the source to be used when reporting errors to the given [source].
+   * Setting the source to `null` will cause the default source to be used.
+   */
+  void set source(Source source) {
+    this._source = source == null ? _defaultSource : source;
+  }
+
+  /**
+   * Creates an error with properties with the given [errorCode] and
+   * [arguments]. The [node] is used to compute the location of the error.
+   */
+  AnalysisErrorWithProperties newErrorWithProperties(
+          ErrorCode errorCode, AstNode node, List<Object> arguments) =>
+      new AnalysisErrorWithProperties(
+          _source, node.offset, node.length, errorCode, arguments);
+
+  /**
+   * Report the given [error].
+   */
+  void reportError(AnalysisError error) {
+    _errorListener.onError(error);
+  }
+
+  /**
+   * Report an error with the given [errorCode] and [arguments]. The [element]
+   * is used to compute the location of the error.
+   */
+  void reportErrorForElement(
+      ErrorCode errorCode, Element element, List<Object> arguments) {
+    String displayName = element.displayName;
+    int length = 0;
+    if (displayName != null) {
+      length = displayName.length;
+    } else if (element is ImportElement) {
+      length = 6; // 'import'.length
+    } else if (element is ExportElement) {
+      length = 6; // 'export'.length
+    }
+    reportErrorForOffset(errorCode, element.nameOffset, length, arguments);
+  }
+
+  /**
+   * Report an error with the given [errorCode] and [arguments].
+   * The [node] is used to compute the location of the error.
+   *
+   * If the arguments contain the names of two or more types, the method
+   * [reportTypeErrorForNode] should be used and the types
+   * themselves (rather than their names) should be passed as arguments.
+   */
+  void reportErrorForNode(ErrorCode errorCode, AstNode node,
+      [List<Object> arguments]) {
+    reportErrorForOffset(errorCode, node.offset, node.length, arguments);
+  }
+
+  /**
+   * Report an error with the given [errorCode] and [arguments]. The location of
+   * the error is specified by the given [offset] and [length].
+   */
+  void reportErrorForOffset(ErrorCode errorCode, int offset, int length,
+      [List<Object> arguments]) {
+    _errorListener.onError(
+        new AnalysisError(_source, offset, length, errorCode, arguments));
+  }
+
+  /**
+   * Report an error with the given [errorCode] and [arguments]. The [token] is
+   * used to compute the location of the error.
+   */
+  void reportErrorForToken(ErrorCode errorCode, Token token,
+      [List<Object> arguments]) {
+    reportErrorForOffset(errorCode, token.offset, token.length, arguments);
+  }
+
+  /**
+   * Report an error with the given [errorCode] and [arguments]. The [node] is
+   * used to compute the location of the error. The arguments are expected to
+   * contain two or more types. Convert the types into strings by using the
+   * display names of the types, unless there are two or more types with the
+   * same names, in which case the extended display names of the types will be
+   * used in order to clarify the message.
+   *
+   * If there are not two or more types in the argument list, the method
+   * [reportErrorForNode] should be used instead.
+   */
+  void reportTypeErrorForNode(
+      ErrorCode errorCode, AstNode node, List<Object> arguments) {
+    _convertTypeNames(arguments);
+    reportErrorForOffset(errorCode, node.offset, node.length, arguments);
+  }
+
+  /**
+   * Given an array of [arguments] that is expected to contain two or more
+   * types, convert the types into strings by using the display names of the
+   * types, unless there are two or more types with the same names, in which
+   * case the extended display names of the types will be used in order to
+   * clarify the message.
+   */
+  void _convertTypeNames(List<Object> arguments) {
+    if (_hasEqualTypeNames(arguments)) {
+      int count = arguments.length;
+      for (int i = 0; i < count; i++) {
+        Object argument = arguments[i];
+        if (argument is DartType) {
+          DartType type = argument;
+          Element element = type.element;
+          if (element == null) {
+            arguments[i] = type.displayName;
+          } else {
+            arguments[i] = element.getExtendedDisplayName(type.displayName);
+          }
+        }
+      }
+    } else {
+      int count = arguments.length;
+      for (int i = 0; i < count; i++) {
+        Object argument = arguments[i];
+        if (argument is DartType) {
+          arguments[i] = argument.displayName;
+        }
+      }
+    }
+  }
+
+  /**
+   * Return `true` if the given array of [arguments] contains two or more types
+   * with the same display name.
+   */
+  bool _hasEqualTypeNames(List<Object> arguments) {
+    int count = arguments.length;
+    HashSet<String> typeNames = new HashSet<String>();
+    for (int i = 0; i < count; i++) {
+      if (arguments[i] is DartType &&
+          !typeNames.add((arguments[i] as DartType).displayName)) {
+        return true;
+      }
+    }
+    return false;
+  }
+}
+
+/**
+ * The severity of an [ErrorCode].
+ */
+class ErrorSeverity extends Enum<ErrorSeverity> {
+  /**
+   * The severity representing a non-error. This is never used for any error
+   * code, but is useful for clients.
+   */
+  static const ErrorSeverity NONE = const ErrorSeverity('NONE', 0, " ", "none");
+
+  /**
+   * The severity representing an informational level analysis issue.
+   */
+  static const ErrorSeverity INFO = const ErrorSeverity('INFO', 1, "I", "info");
+
+  /**
+   * The severity representing a warning. Warnings can become errors if the `-Werror` command
+   * line flag is specified.
+   */
+  static const ErrorSeverity WARNING =
+      const ErrorSeverity('WARNING', 2, "W", "warning");
+
+  /**
+   * The severity representing an error.
+   */
+  static const ErrorSeverity ERROR =
+      const ErrorSeverity('ERROR', 3, "E", "error");
+
+  static const List<ErrorSeverity> values = const [NONE, INFO, WARNING, ERROR];
+
+  /**
+   * The name of the severity used when producing machine output.
+   */
+  final String machineCode;
+
+  /**
+   * The name of the severity used when producing readable output.
+   */
+  final String displayName;
+
+  /**
+   * Initialize a newly created severity with the given names.
+   *
+   * Parameters:
+   * 0: the name of the severity used when producing machine output
+   * 1: the name of the severity used when producing readable output
+   */
+  const ErrorSeverity(
+      String name, int ordinal, this.machineCode, this.displayName)
+      : super(name, ordinal);
+
+  /**
+   * Return the severity constant that represents the greatest severity.
+   */
+  ErrorSeverity max(ErrorSeverity severity) =>
+      this.ordinal >= severity.ordinal ? this : severity;
+}
+
+/**
+ * The type of an [ErrorCode].
+ */
+class ErrorType extends Enum<ErrorType> {
+  /**
+   * Task (todo) comments in user code.
+   */
+  static const ErrorType TODO = const ErrorType('TODO', 0, ErrorSeverity.INFO);
+
+  /**
+   * Extra analysis run over the code to follow best practices, which are not in
+   * the Dart Language Specification.
+   */
+  static const ErrorType HINT = const ErrorType('HINT', 1, ErrorSeverity.INFO);
+
+  /**
+   * Compile-time errors are errors that preclude execution. A compile time
+   * error must be reported by a Dart compiler before the erroneous code is
+   * executed.
+   */
+  static const ErrorType COMPILE_TIME_ERROR =
+      const ErrorType('COMPILE_TIME_ERROR', 2, ErrorSeverity.ERROR);
+
+  /**
+   * Checked mode compile-time errors are errors that preclude execution in
+   * checked mode.
+   */
+  static const ErrorType CHECKED_MODE_COMPILE_TIME_ERROR = const ErrorType(
+      'CHECKED_MODE_COMPILE_TIME_ERROR', 3, ErrorSeverity.ERROR);
+
+  /**
+   * Static warnings are those warnings reported by the static checker. They
+   * have no effect on execution. Static warnings must be provided by Dart
+   * compilers used during development.
+   */
+  static const ErrorType STATIC_WARNING =
+      const ErrorType('STATIC_WARNING', 4, ErrorSeverity.WARNING);
+
+  /**
+   * Many, but not all, static warnings relate to types, in which case they are
+   * known as static type warnings.
+   */
+  static const ErrorType STATIC_TYPE_WARNING =
+      const ErrorType('STATIC_TYPE_WARNING', 5, ErrorSeverity.WARNING);
+
+  /**
+   * Syntactic errors are errors produced as a result of input that does not
+   * conform to the grammar.
+   */
+  static const ErrorType SYNTACTIC_ERROR =
+      const ErrorType('SYNTACTIC_ERROR', 6, ErrorSeverity.ERROR);
+
+  /**
+   * Lint warnings describe style and best practice recommendations that can be
+   * used to formalize a project's style guidelines.
+   */
+  static const ErrorType LINT = const ErrorType('LINT', 7, ErrorSeverity.INFO);
+
+  static const List<ErrorType> values = const [
+    TODO,
+    HINT,
+    COMPILE_TIME_ERROR,
+    CHECKED_MODE_COMPILE_TIME_ERROR,
+    STATIC_WARNING,
+    STATIC_TYPE_WARNING,
+    SYNTACTIC_ERROR,
+    LINT
+  ];
+
+  /**
+   * The severity of this type of error.
+   */
+  final ErrorSeverity severity;
+
+  /**
+   * Initialize a newly created error type to have the given [name] and
+   * [severity].
+   */
+  const ErrorType(String name, int ordinal, this.severity)
+      : super(name, ordinal);
+
+  String get displayName => name.toLowerCase().replaceAll('_', ' ');
+}
+
+/**
+ * The hints and coding recommendations for best practices which are not
+ * mentioned in the Dart Language Specification.
+ */
+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.
+   *
+   * Parameters:
+   * 0: the name of the actual argument type
+   * 1: the name of the expected type
+   */
+  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.
+   *
+   * Parameters:
+   * 0: name of the subtype
+   * 1: name of the supertype
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the name of the member
+   */
+  static const HintCode DEPRECATED_MEMBER_USE =
+      const HintCode('DEPRECATED_MEMBER_USE', "'{0}' is deprecated");
+
+  /**
+   * Duplicate imports.
+   */
+  static const HintCode DUPLICATE_IMPORT =
+      const HintCode('DUPLICATE_IMPORT', "Duplicate import");
+
+  /**
+   * Hint to use the ~/ operator.
+   */
+  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('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('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('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('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(
+      '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.
+   *
+   * Parameters:
+   * 0: the name of the right hand side type
+   * 1: the name of the left hand side type
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the name of the declared return type
+   */
+  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(
+      '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(
+      '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(
+      'OVERRIDE_ON_NON_OVERRIDING_SETTER',
+      "Setter does not override an inherited setter");
+
+  /**
+   * Hint for classes that override equals, but not hashCode.
+   *
+   * Parameters:
+   * 0: the name of the current class
+   */
+  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(
+      '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(
+      '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.
+   *
+   * Parameters:
+   * 0: the name of the getter
+   * 1: the name of the enclosing type where the getter is being looked for
+   */
+  static const HintCode UNDEFINED_GETTER = const HintCode('UNDEFINED_GETTER',
+      "The getter '{0}' is not defined for the class '{1}'");
+
+  /**
+   * This hint is generated anywhere where the
+   * [StaticTypeWarningCode.UNDEFINED_METHOD] would have been generated, if we
+   * used propagated information for the warnings.
+   *
+   * Parameters:
+   * 0: the name of the method that is undefined
+   * 1: the resolved type name that the method lookup is happening on
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the name of the operator
+   * 1: the name of the enclosing type where the operator is being looked for
+   */
+  static const HintCode UNDEFINED_OPERATOR = const HintCode(
+      'UNDEFINED_OPERATOR',
+      "The operator '{0}' is not defined for the class '{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.
+   *
+   * Parameters:
+   * 0: the name of the setter
+   * 1: the name of the enclosing type where the setter is being looked for
+   */
+  static const HintCode UNDEFINED_SETTER = const HintCode('UNDEFINED_SETTER',
+      "The setter '{0}' is not defined for the class '{1}'");
+
+  /**
+   * 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(
+      '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(
+      'UNNECESSARY_TYPE_CHECK_TRUE',
+      "Unnecessary type check, the result is always true");
+
+  /**
+   * See [Modifier.IS_USED_IN_LIBRARY].
+   */
+  static const HintCode UNUSED_ELEMENT =
+      const HintCode('UNUSED_ELEMENT', "The {0} '{1}' is not used");
+
+  /**
+   * Unused fields are fields which are never read.
+   */
+  static const HintCode UNUSED_FIELD = const HintCode(
+      'UNUSED_FIELD', "The value of the field '{0}' is not used");
+
+  /**
+   * Unused imports are imports which are never used.
+   */
+  static const HintCode UNUSED_IMPORT =
+      const HintCode('UNUSED_IMPORT', "Unused import");
+
+  /**
+   * Unused catch exception variables.
+   */
+  static const HintCode UNUSED_CATCH_CLAUSE = const HintCode(
+      'UNUSED_CATCH_CLAUSE',
+      "The exception variable '{0}' is not used, so the 'catch' clause can be removed");
+
+  /**
+   * Unused catch stack trace variables.
+   */
+  static const HintCode UNUSED_CATCH_STACK = const HintCode(
+      'UNUSED_CATCH_STACK',
+      "The stack trace variable '{0}' is not used and can be removed");
+
+  /**
+   * Unused local variables are local varaibles which are never read.
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the name of the method or function that returns void
+   */
+  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;
+}
+
+/**
+ * The error codes used for errors 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 HtmlErrorCode extends ErrorCode {
+  /**
+   * An error code indicating that there is a syntactic error in the file.
+   *
+   * Parameters:
+   * 0: the error message from the parse error
+   */
+  static const HtmlErrorCode PARSE_ERROR =
+      const HtmlErrorCode('PARSE_ERROR', '{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 HtmlErrorCode(String name, String message, [String correction])
+      : super(name, message, correction);
+
+  @override
+  ErrorSeverity get errorSeverity => ErrorSeverity.ERROR;
+
+  @override
+  ErrorType get type => ErrorType.COMPILE_TIME_ERROR;
+}
+
+/**
+ * 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 ErrorCode {
+  /**
+   * An error code indicating that the value of the 'src' attribute of a Dart
+   * script tag is not a valid URI.
+   *
+   * Parameters:
+   * 0: the URI that is invalid
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the URI pointing to a non-existent file
+   */
+  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;
+}
+
+/**
+ * Defines style and best practice recommendations.
+ *
+ * Unlike [HintCode]s, which are akin to traditional static warnings from a
+ * compiler, lint recommendations focus on matters of style and practices that
+ * might aggregated to define a project's style guide.
+ */
+class LintCode extends ErrorCode {
+  const LintCode(String name, String message, [String correction])
+      : super(name, message, correction);
+
+  @override
+  ErrorSeverity get errorSeverity => ErrorSeverity.INFO;
+
+  @override
+  ErrorType get type => ErrorType.LINT;
+}
+
+/**
+ * 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 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.
+   *
+   * Parameters:
+   * 0: the number of provided type arguments
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the number of provided type arguments
+   */
+  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");
+
+  /**
+   * 9 Functions: It is a static warning if the declared return type of a
+   * function marked async* may not be assigned to Stream.
+   */
+  static const StaticTypeWarningCode ILLEGAL_ASYNC_GENERATOR_RETURN_TYPE =
+      const StaticTypeWarningCode('ILLEGAL_ASYNC_GENERATOR_RETURN_TYPE',
+          "Functions marked 'async*' must have a return type assignable to 'Stream'");
+
+  /**
+   * 9 Functions: It is a static warning if the declared return type of a
+   * function marked async may not be assigned to Future.
+   */
+  static const StaticTypeWarningCode ILLEGAL_ASYNC_RETURN_TYPE =
+      const StaticTypeWarningCode('ILLEGAL_ASYNC_RETURN_TYPE',
+          "Functions marked 'async' must have a return type assignable to 'Future'");
+
+  /**
+   * 9 Functions: It is a static warning if the declared return type of a
+   * function marked sync* may not be assigned to Iterable.
+   */
+  static const StaticTypeWarningCode ILLEGAL_SYNC_GENERATOR_RETURN_TYPE =
+      const StaticTypeWarningCode('ILLEGAL_SYNC_GENERATOR_RETURN_TYPE',
+          "Functions marked 'sync*' must have a return type assignable to 'Iterable'");
+
+  /**
+   * 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('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>.
+   *
+   * Parameters:
+   * 0: the name of the static member
+   *
+   * 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>.
+   *
+   * Parameters:
+   * 0: the name of the right hand side type
+   * 1: the name of the left hand side 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.
+   *
+   * Parameters:
+   * 0: 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.
+   *
+   * 13.8 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(
+          '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.
+   *
+   * Parameters:
+   * 0: the lexeme of the logical operator
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the return type as declared in the return statement
+   * 1: the expected return type as defined by the method
+   * 2: the name of the method
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the name of the type used in the instance creation that should be
+   *    limited by the bound as specified in the class declaration
+   * 1: the name of the bounding type
+   *
+   * 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.
+   *
+   * Parameters:
+   * 0: the name of the type parameter
+   *
+   * 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>.
+   *
+   * Parameters:
+   * 0: the name of the enumeration constant that is not defined
+   * 1: 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>).
+   *
+   * Parameters:
+   * 0: 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>.
+   *
+   * Parameters:
+   * 0: the name of the getter
+   * 1: the name of the enclosing type where the getter is being looked for
+   */
+  static const StaticTypeWarningCode UNDEFINED_GETTER =
+      const StaticTypeWarningCode('UNDEFINED_GETTER',
+          "The getter '{0}' is not defined for the class '{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>.
+   *
+   * Parameters:
+   * 0: the name of the method that is undefined
+   * 1: 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>.
+   *
+   * Parameters:
+   * 0: the name of the operator
+   * 1: the name of the enclosing type where the operator is being looked for
+   */
+  static const StaticTypeWarningCode UNDEFINED_OPERATOR =
+      const StaticTypeWarningCode('UNDEFINED_OPERATOR',
+          "The operator '{0}' is not defined for the class '{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>.
+   *
+   * Parameters:
+   * 0: the name of the setter
+   * 1: 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',
+          "The setter '{0}' is not defined for the class '{1}'");
+
+  /**
+   * 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>.
+   *
+   * Parameters:
+   * 0: the name of the getter
+   * 1: the name of the enclosing type where the getter is being looked for
+   */
+  static const StaticTypeWarningCode UNDEFINED_SUPER_GETTER =
+      const StaticTypeWarningCode('UNDEFINED_SUPER_GETTER',
+          "The getter '{0}' is not defined in a superclass of '{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>.
+   *
+   * Parameters:
+   * 0: the name of the method that is undefined
+   * 1: the resolved type name that the method lookup is happening on
+   */
+  static const StaticTypeWarningCode UNDEFINED_SUPER_METHOD =
+      const StaticTypeWarningCode('UNDEFINED_SUPER_METHOD',
+          "The method '{0}' is not defined in a superclass of '{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>.
+   *
+   * Parameters:
+   * 0: the name of the operator
+   * 1: the name of the enclosing type where the operator is being looked for
+   */
+  static const StaticTypeWarningCode UNDEFINED_SUPER_OPERATOR =
+      const StaticTypeWarningCode('UNDEFINED_SUPER_OPERATOR',
+          "The operator '{0}' is not defined in a superclass of '{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>.
+   *
+   * Parameters:
+   * 0: the name of the setter
+   * 1: the name of the enclosing type where the setter is being looked for
+   *
+   * See [INACCESSIBLE_SETTER].
+   */
+  static const StaticTypeWarningCode UNDEFINED_SUPER_SETTER =
+      const StaticTypeWarningCode('UNDEFINED_SUPER_SETTER',
+          "The setter '{0}' is not defined in a superclass of '{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.
+   *
+   * Parameters:
+   * 0: the name of the type being referenced (<i>G</i>)
+   * 1: the number of type parameters that were declared
+   * 2: the number of type arguments provided
+   *
+   * See [CompileTimeErrorCode.CONST_WITH_INVALID_TYPE_PARAMETERS], and
+   * [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");
+
+  /**
+   * 17.16.1 Yield: Let T be the static type of e [the expression to the right
+   * of "yield"] and let f be the immediately enclosing function.  It is a
+   * static type warning if either:
+   *
+   * - the body of f is marked async* and the type Stream<T> may not be
+   *   assigned to the declared return type of f.
+   *
+   * - the body of f is marked sync* and the type Iterable<T> may not be
+   *   assigned to the declared return type of f.
+   *
+   * 17.16.2 Yield-Each: Let T be the static type of e [the expression to the
+   * right of "yield*"] and let f be the immediately enclosing function.  It is
+   * a static type warning if T may not be assigned to the declared return type
+   * of f.  If f is synchronous it is a static type warning if T may not be
+   * assigned to Iterable.  If f is asynchronous it is a static type warning if
+   * T may not be assigned to Stream.
+   */
+  static const StaticTypeWarningCode YIELD_OF_INVALID_TYPE =
+      const StaticTypeWarningCode('YIELD_OF_INVALID_TYPE',
+          "The type '{0}' implied by the 'yield' expression must be assignable to '{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 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;
+}
+
+/**
+ * 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 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.
+   *
+   * Parameters:
+   * 0: the name of the ambiguous type
+   * 1: the name of the first library that the type is found
+   * 2: 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}",
+      "Consider using 'as prefix' for one of the import directives "
+      "or hiding the name from all but one of the imports.");
+
+  /**
+   * 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>.
+   *
+   * Parameters:
+   * 0: the name of the actual argument type
+   * 1: the name of the expected type
+   */
+  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(
+      '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");
+
+  /**
+   * 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_TYPE = const StaticWarningCode(
+      'ASSIGNMENT_TO_TYPE', "Types 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.
+   *
+   * Parameters:
+   * 0: the ambiguous name
+   * 1: the name of the dart: library in which the element is found
+   * 1: the name of the non-dart: library in which 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>.
+   *
+   * Parameters:
+   * 0: the name of the super class declaring a static member
+   */
+  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>.
+   *
+   * Parameters:
+   * 0: the name of the super class declaring a static member
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the uri pointing to a first library
+   * 1: the uri pointing to a second library
+   * 2:e the shared name of the exported libraries
+   */
+  static const StaticWarningCode EXPORT_DUPLICATED_LIBRARY_NAMED =
+      const StaticWarningCode('EXPORT_DUPLICATED_LIBRARY_NAMED',
+          "The exported libraries '{0}' and '{1}' cannot 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>.
+   *
+   * Parameters:
+   * 0: the maximum number of positional arguments
+   * 1: the actual number of positional arguments given
+   *
+   * 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.
+   *
+   * Parameters:
+   * 0: the name of the field in question
+   */
+  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>.
+   *
+   * Parameters:
+   * 0: the name of the type of the initializer expression
+   * 1: the name of the type of the field
+   */
+  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>.
+   *
+   * Parameters:
+   * 0: the name of the type of the field formal parameter
+   * 1: the name of the type of the field
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the name of the uninitialized final variable
+   */
+  static const StaticWarningCode FINAL_NOT_INITIALIZED =
+      const StaticWarningCode('FINAL_NOT_INITIALIZED',
+          "The final variable '{0}' must be initialized");
+
+  /**
+   * 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.
+   *
+   * Parameters:
+   * 0: the name of the uninitialized final variable
+   */
+  static const StaticWarningCode FINAL_NOT_INITIALIZED_CONSTRUCTOR_1 =
+      const StaticWarningCode('FINAL_NOT_INITIALIZED_CONSTRUCTOR_1',
+          "The final variable '{0}' must be initialized");
+
+  /**
+   * 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.
+   *
+   * Parameters:
+   * 0: the name of the uninitialized final variable
+   * 1: the name of the uninitialized final variable
+   */
+  static const StaticWarningCode FINAL_NOT_INITIALIZED_CONSTRUCTOR_2 =
+      const StaticWarningCode('FINAL_NOT_INITIALIZED_CONSTRUCTOR_2',
+          "The final variables '{0}' and '{1}' must be initialized");
+
+  /**
+   * 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.
+   *
+   * Parameters:
+   * 0: the name of the uninitialized final variable
+   * 1: the name of the uninitialized final variable
+   * 2: the number of additional not initialized variables that aren't listed
+   */
+  static const StaticWarningCode FINAL_NOT_INITIALIZED_CONSTRUCTOR_3_PLUS =
+      const StaticWarningCode('FINAL_NOT_INITIALIZED_CONSTRUCTOR_3',
+          "The final variables '{0}', '{1}' and '{2}' more 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.
+   *
+   * Parameters:
+   * 0: the uri pointing to a first library
+   * 1: the uri pointing to a second library
+   * 2: the shared name of the imported libraries
+   */
+  static const StaticWarningCode IMPORT_DUPLICATED_LIBRARY_NAMED =
+      const StaticWarningCode('IMPORT_DUPLICATED_LIBRARY_NAMED',
+          "The imported libraries '{0}' and '{1}' cannot 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.
+   *
+   * Parameters:
+   * 0: the uri pointing to a non-library declaration
+   *
+   * 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>.
+   *
+   * Parameters:
+   * 0: the name of the member with the name conflict
+   * 1: 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>.
+   *
+   * Parameters:
+   * 0: the name of the actual return type
+   * 1: the name of the expected return type, not assignable to the actual
+   *    return type
+   * 2: 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>.
+   *
+   * Parameters:
+   * 0: the name of the actual parameter type
+   * 1: the name of the expected parameter type, not assignable to the actual
+   *    parameter type
+   * 2: 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>.
+   *
+   * Parameters:
+   * 0: the name of the actual parameter type
+   * 1: the name of the expected parameter type, not assignable to the actual
+   *    parameter type
+   * 2: 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>.
+   *
+   * Parameters:
+   * 0: the name of the actual parameter type
+   * 1: the name of the expected parameter type, not assignable to the actual
+   *    parameter type
+   * 2: 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>.
+   *
+   * Parameters:
+   * 0: the name of the actual return type
+   * 1: the name of the expected return type, not assignable to the actual
+   *    return type
+   * 2: 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('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(
+          '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>.
+   *
+   * Parameters:
+   * 0: the number of named parameters in the overridden member
+   * 1: the name of the class from the overridden method
+   */
+  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>.
+   *
+   * Parameters:
+   * 0: the number of positional parameters in the overridden member
+   * 1: the name of the class from the overridden method
+   */
+  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>.
+   *
+   * Parameters:
+   * 0: the number of required parameters in the overridden member
+   * 1: 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>.
+   *
+   * Parameters:
+   * 0: the name of the actual parameter type
+   * 1: the name of the expected parameter type, not assignable to the actual
+   * parameter type
+   * 2: 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.
+   *
+   * Parameters:
+   * 0: the name of the type being referenced (<i>S</i>)
+   * 1: the number of type parameters that were declared
+   * 2: the number of type arguments provided
+   *
+   * See [CompileTimeErrorCode.CONST_WITH_INVALID_TYPE_PARAMETERS], and
+   * [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.
+   *
+   * Parameters:
+   * 0: the name of the non-type element
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the name of the first member
+   * 1: the name of the second member
+   * 2: the name of the third member
+   * 3: the name of the fourth member
+   * 4: 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.
+   *
+   * Parameters:
+   * 0: the name of the first member
+   * 1: the name of the second member
+   * 2: the name of the third member
+   * 3: the name of the fourth member
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the name of the member
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the name of the first member
+   * 1: the name of the second member
+   * 2: the name of the third member
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the name of the first member
+   * 1: the name of the second member
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the name of the non-type element
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the name that is not a type
+   */
+  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>.
+   *
+   * Parameters:
+   * 0: the expected number of required arguments
+   * 1: the actual number of positional arguments given
+   *
+   * 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.
+   *
+   * Parameters:
+   * 0: the name of expected library name
+   * 1: 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>.
+   *
+   * Parameters:
+   * 0: the name of the redirected constructor
+   * 1: the name of the redirecting constructor
+   */
+  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>.
+   *
+   * Parameters:
+   * 0: the name of the redirected constructor return type
+   * 1: the name of the redirecting constructor return type
+   */
+  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.
+   */
+  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>.
+   *
+   * Parameters:
+   * 0: the name of the instance member
+   */
+  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.
+   *
+   * Parameters:
+   * 0: 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_WITH_NON_TYPE = const StaticWarningCode(
+      'TYPE_TEST_WITH_NON_TYPE',
+      "The name '{0}' is not a type and cannot be used in an 'is' expression");
+
+  /**
+   * 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_WITH_UNDEFINED_NAME =
+      const StaticWarningCode('TYPE_TEST_WITH_UNDEFINED_NAME',
+          "The name '{0}' is not defined 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.
+   *
+   * Parameters:
+   * 0: the name of the undefined class
+   */
+  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('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>.
+   *
+   * Parameters:
+   * 0: the name of the getter
+   * 1: the name of the enclosing type where the getter is being looked for
+   */
+  static const StaticWarningCode UNDEFINED_GETTER = const StaticWarningCode(
+      'UNDEFINED_GETTER',
+      "The getter '{0}' is not defined for the class '{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.
+   *
+   * Parameters:
+   * 0: the name of the identifier
+   */
+  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.
+   *
+   * Parameters:
+   * 0: the name of the requested named parameter
+   */
+  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>.
+   *
+   * Parameters:
+   * 0: the name of the getter
+   * 1: the name of the enclosing type where the setter is being looked for
+   */
+  static const StaticWarningCode UNDEFINED_SETTER = const StaticWarningCode(
+      'UNDEFINED_SETTER',
+      "The setter '{0}' is not defined for the class '{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>.
+   *
+   * Parameters:
+   * 0: the name of the method
+   * 1: 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',
+          "The static method, getter or setter '{0}' is not defined for the class '{1}'");
+
+  /**
+   * 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>.
+   *
+   * Parameters:
+   * 0: the name of the getter
+   * 1: the name of the enclosing type where the getter is being looked for
+   */
+  static const StaticWarningCode UNDEFINED_SUPER_GETTER =
+      const StaticWarningCode('UNDEFINED_SUPER_GETTER',
+          "The getter '{0}' is not defined in a superclass of '{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 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>.
+   *
+   * Parameters:
+   * 0: the name of the getter
+   * 1: the name of the enclosing type where the setter is being looked for
+   */
+  static const StaticWarningCode UNDEFINED_SUPER_SETTER =
+      const StaticWarningCode('UNDEFINED_SUPER_SETTER',
+          "The setter '{0}' is not defined in a superclass of '{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('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;
+}
+
+/**
+ * The error code indicating a marker in code for work that needs to be finished
+ * or revisited.
+ */
+class TodoCode extends ErrorCode {
+  /**
+   * The single enum of TodoCode.
+   */
+  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:?\$))");
+
+  /**
+   * 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
+  ErrorType get type => ErrorType.TODO;
+}