Remove references to Engine classes from protocol.dart

pkg/analysis_server/lib/src/services/refactoring/move_file.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.move_file;
 
 import 'dart:async';
 
-import 'package:analysis_server/src/protocol.dart' hide Element;
+import 'package:analysis_server/src/protocol_server.dart' hide Element;
 import 'package:analysis_server/src/services/correction/status.dart';
 import 'package:analysis_server/src/services/refactoring/refactoring.dart';
 import 'package:analysis_server/src/services/refactoring/refactoring_internal.dart';
 import 'package:analysis_server/src/services/search/search_engine.dart';
 import 'package:analyzer/src/generated/element.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:path/path.dart' as pathos;
 
 
@@ skipping 120 matching lines @@
   }
 
   void _updateUriReference(UriReferencedElement element) {
     if (!element.isSynthetic) {
       String elementUri = element.uri;
       if (_isRelativeUri(elementUri)) {
         String elementPath = pathContext.join(oldLibraryDir, elementUri);
         String newUri = _getRelativeUri(elementPath, newLibraryDir);
         int uriOffset = element.uriOffset;
         int uriLength = element.uriEnd - uriOffset;
-        change.addElementEdit(
+        doSourceChange_addElementEdit(
+            change,
             library,
             new SourceEdit(uriOffset, uriLength, "'$newUri'"));
       }
     }
   }
 
   void _updateUriReferences(List<UriReferencedElement> elements) {
     for (UriReferencedElement element in elements) {
       _updateUriReference(element);
     }
   }
 }