Update the Angular/DI tests to latest from github.

third_party/pkg/js/example/jsonp/jsonp.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 jsonp_sample;
 
 import 'dart:html';
-import 'dart:js';
+
+import 'package:js/js.dart';
 
 const List<String> FIELDS = const ['name', 'description', 'size',
                                    'watchers', 'forks'];
 
 TableElement table = querySelector('#repo-table');
 
 addTableHeadRow() {
   var tr = new TableRowElement();
   for (var field in FIELDS) {
     tr.append(new Element.tag('th')..text = field);
   }
   table.querySelector('thead').append(tr);
 }
 
-addTableBodyRow(JsObject repo) {
+addTableBodyRow(Proxy repo) {
   var tr = new TableRowElement();
   for (var field in FIELDS) {
     var td = new TableCellElement();
     if (field == 'name') {
       td.append(new AnchorElement()
-          ..href = repo['html_url']
+          ..href = repo.html_url
           ..text = repo[field]);
     } else {
       td.text = repo[field].toString();
     }
     tr.append(td);
   }
   table.querySelector('tbody').append(tr);
 }
 
 void main() {
   // Create a jsObject to handle the response.
-  context['processData'] = (response) {
+  context.processData = (response) {
     addTableHeadRow();
-    for (var repo in response['data']) {
-      addTableBodyRow(repo);
+    for (var i = 0; i < response.data.length; i++) {
+      addTableBodyRow(response.data[i]);
     }
   };
 
   ScriptElement script = new Element.tag("script");
   script.src = "https://api.github.com/users/dart-lang/repos?callback=processData";
   document.body.children.add(script);
 }