Adding Angular and dependent packages for testing

third_party/pkg/js/lib/src/wrapping/util.dart

Index: third_party/pkg/js/lib/src/wrapping/util.dart
diff --git a/tests/compiler/dart2js_native/call_on_native_class_test.dart b/third_party/pkg/js/lib/src/wrapping/util.dart
similarity index 63%
copy from tests/compiler/dart2js_native/call_on_native_class_test.dart
copy to third_party/pkg/js/lib/src/wrapping/util.dart
index 3b07cf6be0192d8daa41c4c37c37d0909127cd67..d658cbecee1f668cbf57c74475565c9ebb2f58ab 100644
--- a/tests/compiler/dart2js_native/call_on_native_class_test.dart
+++ b/third_party/pkg/js/lib/src/wrapping/util.dart
@@ -2,13 +2,8 @@
 // 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.
 
-class A native '*A' {
-}
+part of js.wrapping;
 
-class B extends A{
-  call() => 42;
-}
+typedef T Mapper<F,T>(F o);
 
-main() {
-  new B()();
-}
+dynamic mapNotNull(dynamic o, Mapper mapper) => o != null ? mapper(o) : null;