add LibraryIdentifier

test_package/lib/bar.dart

Index: test_package/lib/bar.dart
diff --git a/test/cycle_a.dart b/test_package/lib/bar.dart
similarity index 68%
copy from test/cycle_a.dart
copy to test_package/lib/bar.dart
index b0d55daa7e7105a0be78bdf1b41173b379bbd765..8cc6129cdc024e3511a7622f98d90270f34ec05e 100644
--- a/test/cycle_a.dart
+++ b/test_package/lib/bar.dart
@@ -1,10 +1,7 @@
 // Copyright (c) 2015, 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 initialize.test.cycle_a;
-
-import 'initialize_tracker.dart';
-import 'cycle_b.dart';
-
 @initializeTracker
-class CycleA {}
+library test_package.bar;
+
+import 'package:initialize/src/initialize_tracker.dart';