make sure we follow the whole super chain

test/initializer_parts_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.
 @initializeTracker
 library initialize.initializer_parts_test;
 
 import 'package:initialize/src/initialize_tracker.dart';
 import 'package:initialize/initialize.dart';
 import 'package:unittest/unittest.dart';
 import 'package:unittest/compact_vm_config.dart';
 
 part 'parts/foo.dart';
 part 'parts/bar.dart';
 
 main() {
   useCompactVMConfiguration();
 
   // Run all initializers.
   run().then((_) {
     test('parts', () {
       var expectedNames = [
-        const LibraryIdentifier(#initialize.initializer_parts_test, null, 'initializer_parts_test.dart'),
+        const LibraryIdentifier(#initialize.initializer_parts_test, null,
+            'initializer_parts_test.dart'),
         bar2,
         bar,
         foo,
         baz,
         Bar2,
         Bar,
         Foo,
         Baz,
       ];
       expect(InitializeTracker.seen, expectedNames);
     });
   });
 }
 
 @initializeTracker
 class Baz {}
 
 @initializeTracker
 baz() {}