First experimental steps towards a better story for JS interop.

tests/html/js_interop_2_test.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('JsInterop2Test');
 #import('../../lib/unittest/unittest.dart');
 #import('../../lib/unittest/html_config.dart');
 #import('dart:html');
-#import('dart:json');
+#import('dart:isolate');
 
 injectSource(code) {
   final script = new ScriptElement();
   script.type = 'text/javascript';
   script.innerHTML = code;
   document.body.nodes.add(script);
 }
 
 isolateTest = """
   function test(data) {
     if (data == 'sent')
       return 'received';
   }
 
-  var port = new ReceivePortSync(test);
+  var port = new ReceivePortSync();
+  port.receive(test);
   window.registerPort('test', port.toSendPort());
 """;
 
 main() {
   useHtmlConfiguration();
 
   test('isolateTest', () {
-      injectSource(isolateTest);
+    injectSource(isolateTest);
 
-      var port = window.lookupPort('test');
-      var result = port.call('sent');
-      Expect.equals('received', result);
+    SendPortSync port = window.lookupPort('test');
+    var result = port.callSync('sent');
+    Expect.equals('received', result);
 
-      result = port.call('ignore');
-      Expect.isNull(result);
-  });  
+    result = port.callSync('ignore');
+    Expect.isNull(result);
+  });
 }