Index library/part file references from import/export/part containing files.

pkg/analysis_server/test/services/index/test_all.dart

 // Copyright (c) 2014, 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 test.services.src.index.all;
 
 import 'package:unittest/unittest.dart';
 
 import '../../utils.dart';
 import 'dart_index_contributor_test.dart' as dart_index_contributor_test;
+import 'indexable_file_test.dart' as indexable_file_test;
 import 'local_file_index_test.dart' as local_file_index_test;
 import 'local_index_test.dart' as local_index_test;
 import 'store/test_all.dart' as store_test_all;
 
 /**
  * Utility for manually running all tests.
  */
 main() {
   initializeTestEnvironment();
   group('index', () {
     dart_index_contributor_test.main();
+    indexable_file_test.main();
     local_file_index_test.main();
     local_index_test.main();
     store_test_all.main();
   });
 }