Unify the server and plugin versions of the generators

pkg/analysis_server/test/services/refactoring/abstract_refactoring.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.refactoring;
-
 import 'dart:async';
 
-import 'package:analysis_server/plugin/protocol/protocol.dart'
+import 'package:analysis_server/protocol/protocol_generated.dart'
     show
         RefactoringProblem,
         RefactoringProblemSeverity,
         SourceChange,
         SourceEdit,
         SourceFileEdit;
 import 'package:analysis_server/src/services/correction/status.dart';
 import 'package:analysis_server/src/services/index/index.dart';
 import 'package:analysis_server/src/services/refactoring/refactoring.dart';
 import 'package:analysis_server/src/services/search/search_engine.dart';
@@ skipping 166 matching lines @@
       searchEngine = new SearchEngineImpl2([driver]);
       astProvider = new AstProviderForDriver(driver);
     } else {
       index = createMemoryIndex();
       searchEngine = new SearchEngineImpl(
           index, (_) => new AstProviderForContext(context));
       astProvider = new AstProviderForContext(context);
     }
   }
 }