Preliminary checked mirrors (not ready for review yet)

pkg/checked_mirrors/test/from_sdk/get_symbol_name_test.dart

Index: pkg/checked_mirrors/test/from_sdk/get_symbol_name_test.dart
diff --git a/tests/lib/mirrors/get_symbol_name_test.dart b/pkg/checked_mirrors/test/from_sdk/get_symbol_name_test.dart
similarity index 86%
copy from tests/lib/mirrors/get_symbol_name_test.dart
copy to pkg/checked_mirrors/test/from_sdk/get_symbol_name_test.dart
index 68b3cb176a73a881d77080f1f1d6dc26ac7441f1..ddec87e3572fb3ad0cb727454f11c3fcd64b4479 100644
--- a/tests/lib/mirrors/get_symbol_name_test.dart
+++ b/pkg/checked_mirrors/test/from_sdk/get_symbol_name_test.dart
@@ -2,7 +2,7 @@
 // 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.
 
-import 'dart:mirrors' show MirrorSystem;
+import 'package:checked_mirrors/checked_mirrors.dart' show MirrorSystem;
 
 expect(expected, actual) {
   if (expected != actual) {