Make more use of generated classes in analysis server.

pkg/analysis_server/lib/src/services/refactoring/rename.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;
 
 import 'dart:async';
 import 'dart:collection';
 
+import 'package:analysis_server/src/protocol2.dart' show SourceEdit;
 import 'package:analysis_server/src/services/correction/change.dart';
 import 'package:analysis_server/src/services/correction/status.dart';
 import 'package:analysis_server/src/services/refactoring/refactoring.dart';
 import 'package:analysis_server/src/services/search/search_engine.dart';
 import 'package:analysis_server/src/services/correction/source_range.dart';
 import 'package:analysis_server/src/services/refactoring/refactoring_internal.dart';
 import 'package:analyzer/src/generated/element.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/source.dart';
 
 
 /**
  * Returns the [Edit] to replace the given [SearchMatch] reference.
  */
-Edit createReferenceEdit(SourceReference reference, String newText) {
-  return new Edit.range(reference.range, newText);
+SourceEdit createReferenceEdit(SourceReference reference, String newText,
+    {String id}) {
+  return editFromRange(reference.range, newText, id: id);
 }
 
 
 /**
  * Returns the file containing declaration of the given [Element].
  */
 String getElementFile(Element element) {
   return element.source.fullName;
 }
 
@@ skipping 125 matching lines @@
         element = element,
         context = element.context,
         oldName = _getDisplayName(element);
 
   /**
    * Adds the "Update declaration" [Edit] to [change].
    */
   void addDeclarationEdit(Change change, Element element) {
     if (element != null) {
       String file = getElementFile(element);
-      Edit edit = new Edit.range(rangeElementName(element), newName);
+      SourceEdit edit = editFromRange(rangeElementName(element), newName);
       change.addEdit(file, edit);
     }
   }
 
   /**
    * Adds an "Update reference" [Edit] to [change].
    */
   void addReferenceEdit(Change change, SourceReference reference) {
-    Edit edit = createReferenceEdit(reference, newName);
+    SourceEdit edit = createReferenceEdit(reference, newName);
     change.addEdit(reference.file, edit);
   }
 
   @override
   Future<RefactoringStatus> checkInitialConditions() {
     var result = new RefactoringStatus();
     return new Future.value(result);
   }
 
   @override
@@ skipping 50 matching lines @@
     }
     if (other is SourceReference) {
       return other.file == file && other.range == range;
     }
     return false;
   }
 
   @override
   String toString() => '${file}@${range}';
 }