Mirror removals: async invoke, mirrorSystemOf(port), Mirror.mirrors.

tests/lib/mirrors/invoke_private_test.dart

Index: tests/lib/mirrors/invoke_private_test.dart
diff --git a/tests/lib/mirrors/invoke_private_test.dart b/tests/lib/mirrors/invoke_private_test.dart
index 0e69bc692c7083ccf331a8080c7cbc59160830ab..30403fe2e17a018e58d49cb321b73931eb6604f9 100644
--- a/tests/lib/mirrors/invoke_private_test.dart
+++ b/tests/lib/mirrors/invoke_private_test.dart
@@ -2,12 +2,12 @@
 // 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 test.invoke_test;
+library test.invoke_private_test;
 
 import 'dart:mirrors';
 
 import 'package:expect/expect.dart';
-import "package:async_helper/async_helper.dart";
+import 'invoke_test.dart';
 
 class C {
   var _field;