Big merge from experimental to bleeding edge.

tools/dom/templates/html/dart2js/impl_Window.darttemplate

 // 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.
 
 part of html;
 
 /// @domName $DOMNAME
 class $CLASSNAME$EXTENDS$IMPLEMENTS native "@*DOMWindow" {
 
   Document get document => JS('Document', '#.document', this);
@@ skipping 125 matching lines @@
   IdbFactory get indexedDB =>
       JS('IdbFactory',
          '#.indexedDB || #.webkitIndexedDB || #.mozIndexedDB',
          this, this, this);
 
   /**
    * Lookup a port by its [name].  Return null if no port is
    * registered under [name].
    */
   SendPortSync lookupPort(String name) {
-    var port = JSON.parse(document.documentElement.attributes['dart-port:$name']);
+    var port = json.parse(document.documentElement.attributes['dart-port:$name']);
     return _deserialize(port);
   }
 
   /**
    * Register a [port] on this window under the given [name].  This
    * port may be retrieved by any isolate (or JavaScript script)
    * running in this window.
    */
   void registerPort(String name, var port) {
     var serialized = _serialize(port);
-    document.documentElement.attributes['dart-port:$name'] = JSON.stringify(serialized);
+    document.documentElement.attributes['dart-port:$name'] = json.stringify(serialized);
   }
 
   /// @domName Window.console; @docsEditable true
   Console get console => Console.safeConsole;
 
 $!MEMBERS
 }