Make server use the common protocol classes

pkg/analysis_server/test/services/refactoring/abstract_rename.dart

Index: pkg/analysis_server/test/services/refactoring/abstract_rename.dart
diff --git a/pkg/analysis_server/test/services/refactoring/abstract_rename.dart b/pkg/analysis_server/test/services/refactoring/abstract_rename.dart
index 04c57b9776fa47ddfa09763d0ed5e724f8a56779..3d8633cf3a3fa718db5987a003253f760b69c6dd 100644
--- a/pkg/analysis_server/test/services/refactoring/abstract_rename.dart
+++ b/pkg/analysis_server/test/services/refactoring/abstract_rename.dart
@@ -2,11 +2,11 @@
 // 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.
 
-import 'package:analysis_server/protocol/protocol_generated.dart' hide Element;
 import 'package:analysis_server/src/services/correction/namespace.dart';
 import 'package:analysis_server/src/services/refactoring/refactoring.dart';
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/element/element.dart';
+import 'package:analyzer_plugin/protocol/protocol_common.dart' hide Element;
 import 'package:test/test.dart';
 
 import 'abstract_refactoring.dart';