Unify the server and plugin versions of the generators

pkg/analysis_server/test/search/abstract_search_domain.dart

Index: pkg/analysis_server/test/search/abstract_search_domain.dart
diff --git a/pkg/analysis_server/test/search/abstract_search_domain.dart b/pkg/analysis_server/test/search/abstract_search_domain.dart
index 90446cd3cc345bc7f1c0eebcc477bf9f0ae05b70..1bdb2fe33a6ddeb913148d2b8a29e2c595557c89 100644
--- a/pkg/analysis_server/test/search/abstract_search_domain.dart
+++ b/pkg/analysis_server/test/search/abstract_search_domain.dart
@@ -2,11 +2,10 @@
 // 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.search.abstract_search_domain;
-
 import 'dart:async';
 
-import 'package:analysis_server/plugin/protocol/protocol.dart';
+import 'package:analysis_server/protocol/protocol.dart';
+import 'package:analysis_server/protocol/protocol_generated.dart';
 import 'package:analysis_server/src/constants.dart';
 import 'package:analysis_server/src/search/search_domain.dart';
 import 'package:analysis_server/src/services/index/index.dart'