Better error message when missing new or const

pkg/analyzer/lib/src/generated/element_resolver.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.resolver.element_resolver;
 
 import 'dart:collection';
 
 import 'ast.dart';
 import 'element.dart';
@@ skipping 711 matching lines @@
         }
         if (!_enableStrictCallChecks &&
             targetType != null &&
             targetType.isDartCoreFunction &&
             methodName.name == FunctionElement.CALL_METHOD_NAME) {
           // TODO(brianwilkerson) Can we ever resolve the function being
           // invoked?
 //          resolveArgumentsToParameters(node.getArgumentList(), invokedFunction);
           return null;
         }
+        ClassElementImpl typeReference = getTypeReference(target);
+        if (typeReference != null) {
+          ConstructorElement constructor =
+              typeReference.getNamedConstructor(methodName.name);
+          if (constructor != null) {
+            _recordUndefinedNode(
+                typeReference,
+                StaticTypeWarningCode.UNDEFINED_METHOD_WITH_CONSTRUCTOR,
+                methodName,
+                [methodName.name, typeReference.name]);
+            return null;
+          }
+        }
         targetTypeName = targetType == null ? null : targetType.displayName;
         ErrorCode proxyErrorCode = (generatedWithTypePropagation
             ? HintCode.UNDEFINED_METHOD
             : StaticTypeWarningCode.UNDEFINED_METHOD);
         _recordUndefinedNode(targetType.element, proxyErrorCode, methodName,
             [methodName.name, targetTypeName]);
       }
     } else if (identical(
         errorCode, StaticTypeWarningCode.UNDEFINED_SUPER_METHOD)) {
       // Generate the type name.
@@ skipping 1825 matching lines @@
 
   @override
   Element get staticElement => null;
 
   @override
   accept(AstVisitor visitor) => null;
 
   @override
   void visitChildren(AstVisitor visitor) {}
 }