Support new getter syntax.

dart/lib/compiler/implementation/elements/elements.dart

 // Copyright (c) 2012, 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');
 
 #import('dart:uri');
 
 #import('../tree/tree.dart');
 #import('../scanner/scannerlib.dart');
@@ skipping 451 matching lines @@
     if (libraryTag !== null) {
       return libraryTag.argument.dartString.slowToString();
     } else {
       // Use the file name as script name.
       String path = uri.path;
       return path.substring(path.lastIndexOf('/') + 1);
     }
   }
 
   Scope buildEnclosingScope() => new TopScope(this);
+
+  bool get isPlatformLibrary => uri.scheme == "dart";
 }
 
 class PrefixElement extends Element {
   Map<SourceString, Element> imported;
   Token firstPosition;
 
   PrefixElement(SourceString prefix, Element enclosing, this.firstPosition)
       : imported = new Map<SourceString, Element>(),
         super(prefix, ElementKind.PREFIX, enclosing);
 
@@ skipping 1024 matching lines @@
   Node parseNode(compiler) => cachedNode;
 
   String toString() => "${enclosingElement.toString()}.${name.slowToString()}";
 
   TypeVariableElement cloneTo(Element enclosing, DiagnosticListener listener) {
     TypeVariableElement result =
         new TypeVariableElement(name, enclosing, cachedNode, type, bound);
     return result;
   }
 }