Emit a compile-time error on members with the name of their enclosing class.

sdk/lib/_internal/compiler/implementation/elements/modelx.dart

 // Copyright (c) 2013, 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 elements.modelx;
 
 import 'dart:collection' show LinkedHashMap;
 
 import 'elements.dart';
 import '../../compiler.dart' as api;
@@ skipping 1946 matching lines @@
   bool get isPatched => patch != null;
   bool get isPatch => origin != null;
   bool get hasLocalScopeMembers => !localScope.isEmpty;
 
   void addMember(Element element, DiagnosticListener listener) {
     localMembers = localMembers.prepend(element);
     addToScope(element, listener);
   }
 
   void addToScope(Element element, DiagnosticListener listener) {
+    if (element.name == name) {
+      listener.reportError(element, MessageKind.MEMBER_USES_CLASS_NAME);
+    }
     localScope.add(element, listener);
   }
 
   Element localLookup(SourceString elementName) {
     Element result = localScope.lookup(elementName);
     if (result == null && isPatch) {
       result = origin.localLookup(elementName);
     }
     return result;
   }
@@ skipping 242 matching lines @@
 
   MetadataAnnotation ensureResolved(Compiler compiler) {
     if (resolutionState == STATE_NOT_STARTED) {
       compiler.resolver.resolveMetadataAnnotation(this);
     }
     return this;
   }
 
   String toString() => 'MetadataAnnotation($value, $resolutionState)';
 }