Add SourceFileEdit.time field.

pkg/analysis_server/lib/src/services/refactoring/rename_constructor.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.rename_constructor;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/protocol.dart' hide Element;
 import 'package:analysis_server/src/services/correction/status.dart';
@@ skipping 40 matching lines @@
   @override
   Future<SourceChange> createChange() {
     SourceChange change = new SourceChange(refactoringName);
     String replacement = newName.isEmpty ? '' : '.${newName}';
     // update references
     return searchEngine.searchReferences(element).then((refMatches) {
       List<SourceReference> references = getSourceReferences(refMatches);
       if (!element.isSynthetic) {
         for (SourceReference reference in references) {
           SourceEdit edit = createReferenceEdit(reference, replacement);
-          change.addEdit(reference.file, edit);
+          addElementSourceChange(change, reference.element, edit);
         }
       }
       return change;
     });
   }
 
   void _analyzePossibleConflicts(RefactoringStatus result) {
     // check if there are members with "newName" in the same ClassElement
     ClassElement parentClass = element.enclosingElement;
     for (Element newNameMember in getChildren(parentClass, newName)) {
       String message =
           format(
               "Class '{0}' already declares {1} with name '{2}'.",
               parentClass.displayName,
               getElementKindName(newNameMember),
               newName);
       result.addError(
           message,
           new Location.fromElement(newNameMember));
     }
   }
 }