Make server use the common protocol classes

pkg/analysis_server/lib/src/services/correction/sort_members.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 services.src.refactoring.sort_members;
-
-import 'package:analysis_server/protocol/protocol_generated.dart' hide Element;
 import 'package:analysis_server/src/services/correction/strings.dart';
 import 'package:analyzer/dart/ast/ast.dart';
+import 'package:analyzer_plugin/protocol/protocol_common.dart' hide Element;
 
 /**
  * Sorter for unit/class members.
  */
 class MemberSorter {
   static List<_PriorityItem> _PRIORITY_ITEMS = [
     new _PriorityItem(false, _MemberKind.UNIT_FUNCTION_MAIN, false),
     new _PriorityItem(false, _MemberKind.UNIT_VARIABLE_CONST, false),
     new _PriorityItem(false, _MemberKind.UNIT_VARIABLE_CONST, true),
     new _PriorityItem(false, _MemberKind.UNIT_VARIABLE, false),
@@ skipping 477 matching lines @@
       return other.kind == kind && other.isStatic == isStatic;
     }
     return other.kind == kind &&
         other.isPrivate == isPrivate &&
         other.isStatic == isStatic;
   }
 
   @override
   String toString() => kind.toString();
 }