Better error message when missing new or const

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

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library engine.error;
 
 import 'dart:collection';
 
 import 'package:analyzer/src/generated/ast.dart' show AstNode;
 import 'package:analyzer/src/generated/element.dart';
@@ skipping 4195 matching lines @@
    *
    * 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}'");
 
   /**
+   * 12.15.1 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_WITH_CONSTRUCTOR =
+      const StaticTypeWarningCode(
+          'UNDEFINED_METHOD_WITH_CONSTRUCTOR',
+          "The method '{0}' is not defined for the class '{1}', but a constructor with that name is defined",
+          "Add 'new' or 'const' to invoke the constuctor, or change the method name.");
+
+  /**
    * 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>.
@@ skipping 1391 matching lines @@
    * 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;
 }