Adding Angular's DI package & Dart unittests which test it.

pkg/third_party/di_tests/di_test.dart

Index: pkg/third_party/di_tests/di_test.dart
diff --git a/utils/tests/testrunner/non_browser_tests/non_browser_toast.dart b/pkg/third_party/di_tests/di_test.dart
old mode 100755
new mode 100644
similarity index 63%
copy from utils/tests/testrunner/non_browser_tests/non_browser_toast.dart
copy to pkg/third_party/di_tests/di_test.dart
index fa32af371bfb738b947a2e9188a4309068411380..4260fa0bd7b61c6bd05319db00f0341885f3171c
--- a/utils/tests/testrunner/non_browser_tests/non_browser_toast.dart
+++ b/pkg/third_party/di_tests/di_test.dart
@@ -2,15 +2,18 @@
 // 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 testrunner_test;
+
+library angular.di.test;
 
 import 'package:unittest/unittest.dart';
+import '../../../third_party/pkg/di/test/main.dart' as di;
 
+/**
+ * Tests Angular's DI package
+ */
 main() {
-  group('foo', () {
-    test('bar', () {
-      expect(true, isTrue);
-    });
+
+  group('main', () {
+    di.main();
   });
 }
-