Fixes #408

tool/input_sdk/patch/convert_patch.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.
 
 // Patch file for dart:convert library.
 
 import 'dart:_js_helper' show patch;
 import 'dart:_foreign_helper' show JS;
 import 'dart:_interceptors' show JSExtendableArray;
 import 'dart:_internal' show MappedIterable, ListIterable;
@@ skipping 15 matching lines @@
  *
  * Throws [FormatException] if the input is not valid JSON text.
  */
 @patch
 _parseJson(String source, reviver(key, value)) {
   if (source is! String) throw new ArgumentError(source);
 
   var parsed;
   try {
     parsed = JS('=Object|JSExtendableArray|Null|bool|num|String',
-                'JSON.parse(#)',
+                'dart.global.JSON.parse(#)',
                 source);
   } catch (e) {
     throw new FormatException(JS('String', 'String(#)', e));
   }
 
   if (reviver == null) {
     return _convertJsonToDartLazy(parsed);
   } else {
     return _convertJsonToDart(parsed, reviver);
   }
@@ skipping 347 matching lines @@
     _sink.close();
   }
 }
 
 @patch class Utf8Decoder {
   @patch
   Converter<List<int>,dynamic> fuse(Converter<String, dynamic> next) {
     return super.fuse(next);
   }
 }