add LibraryIdentifier

test/initializer_custom_filter_test.dart

 // 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.initializer_custom_filter_test;
 
 import 'dart:async';
 import 'package:initialize/initialize.dart';
 import 'package:unittest/unittest.dart';
 import 'package:unittest/compact_vm_config.dart';
-import 'initialize_tracker.dart';
+import 'package:initialize/src/initialize_tracker.dart';
 
 main() {
   useCompactVMConfiguration();
 
   test('filter option limits which types of annotations will be ran', () {
     var originalSize;
     return runPhase(1).then((_) {
       // Even though Baz extends Bar, only Baz should be run.
       expect(InitializeTracker.seen, [Baz]);
     }).then((_) => runPhase(2)).then((_) {
@@ skipping 32 matching lines @@
 @PhasedInitializer(1)
 class Baz extends Bar {}
 
 // Initializer that has a phase associated with it, this can be used in
 // combination with a custom filter to run intialization in phases.
 class PhasedInitializer extends InitializeTracker {
   final int phase;
 
   const PhasedInitializer(this.phase);
 }