Fixes for Angular

tool/input_sdk/lib/js/dart2js/js_dart2js.dart

 // Copyright (c) 2015, 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.
 
 /**
  * Support for interoperating with JavaScript.
  *
  * This library provides access to JavaScript objects from Dart, allowing
  * Dart code to get and set properties, and call methods of JavaScript objects
  * and invoke JavaScript functions. The library takes care of converting
@@ skipping 466 matching lines @@
 Object _convertToDart(o) {
   if (JS('bool', '# == null', o) ||
       JS('bool', 'typeof # == "string"', o) ||
       JS('bool', 'typeof # == "number"', o) ||
       JS('bool', 'typeof # == "boolean"', o) ||
       _isBrowserType(o)) {
     return o;
   } else if (JS('bool', '# instanceof Date', o)) {
     var ms = JS('num', '#.getTime()', o);
     return new DateTime.fromMillisecondsSinceEpoch(ms);
-  } else if (o is _DartObject) {
+  } else if (o is _DartObject &&
+             JS('bool', 'dart.jsobject != dart.realRuntimeType(#)', o)) {

[vsm, 2015/09/02 19:14:32]

My earlier change had native JS objects returning true for any is check, and
that was causing a problem here.

     return o._dartObj;
   } else {
     return _putIfAbsent(_dartProxies, o, _wrapToDart);
   }
 }
 
 _wrapToDart(o) {
   if (JS('bool', 'typeof # == "function"', o)) {
     return new JsFunction._fromJs(o);
   }
   if (JS('bool', '# instanceof Array', o)) {
     return new JsArray._fromJs(o);
   }
   return new JsObject._fromJs(o);
 }
 
 final _dartProxies = JS('', 'new WeakMap()');
 final _jsProxies = JS('', 'new WeakMap()');
 
 Object _putIfAbsent(weakMap, o, getValue(o)) {
   var value = JS('', '#.get(#)', weakMap, o);
   if (value == null) {
     value = getValue(o);
     JS('', '#.set(#, #)', weakMap, o, value);
   }
   return value;
 }