Integrate 'Rename' refactoring into Editor.

pkg/analysis_server/lib/src/edit/edit_domain.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 edit.domain;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/analysis_server.dart';
 import 'package:analysis_server/src/constants.dart';
@@ skipping 184 matching lines @@
     return true;
   }
 
   void getRefactoring(Request request) {
     // prepare for processing the request
     requestId = request.id;
     result = new EditGetRefactoringResult(<RefactoringProblem>[]);
     // process the request
     var params = new EditGetRefactoringParams.fromRequest(request);
     _init(params.kind, params.file, params.offset, params.length).then((_) {
-      if (_hasFatalError) {
+      if (initStatus.hasFatalError) {
         return _sendResultResponse();
       }
       // set options
       if (_requiresOptions) {
         if (params.options == null) {
+          optionsStatus = new RefactoringStatus();
           return _sendResultResponse();
         }
         optionsStatus = _setOptions(params);
         if (_hasFatalError) {
           return _sendResultResponse();
         }
       }
       // done if just validation
       if (params.validateOnly) {
+        finalStatus = new RefactoringStatus();
         return _sendResultResponse();
       }
       // validation and create change
       refactoring.checkFinalConditions().then((_finalStatus) {
         finalStatus = _finalStatus;
         if (_hasFatalError) {
           return _sendResultResponse();
         }
         return refactoring.createChange().then((change) {
           result.change = new SourceChange(change.message, edits: change.edits);
@@ skipping 155 matching lines @@
     }
     if (refactoring is RenameRefactoring) {
       RenameRefactoring renameRefactoring = refactoring;
       RenameOptions renameOptions = params.options;
       renameRefactoring.newName = renameOptions.newName;
       return renameRefactoring.checkNewName();
     }
     return new RefactoringStatus();
   }
 }