Push add*Edit helpers into SourceChange.

pkg/analysis_server/lib/src/protocol.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 protocol;
 
 import 'dart:collection';
 import 'dart:convert';
 
 import 'package:analysis_server/src/computer/element.dart' show
@@ skipping 60 matching lines @@
 void _addEditToSourceChange(SourceChange change, String file, int fileStamp,
                             SourceEdit edit) {
   SourceFileEdit fileEdit = change.getFileEdit(file);
   if (fileEdit == null) {
     fileEdit = new SourceFileEdit(file, fileStamp);
     change.addFileEdit(fileEdit);
   }
   fileEdit.add(edit);
 }
 
+
+void _addElementEditToSourceChange(SourceChange change, engine.Element element,
+    SourceEdit edit) {
+  engine.AnalysisContext context = element.context;
+  engine.Source source = element.source;
+  _addSourceEditToSourceChange(change, context, source, edit);
+}
+
+
+void _addSourceEditToSourceChange(SourceChange change,
+    engine.AnalysisContext context, engine.Source source, SourceEdit edit) {
+  String file = source.fullName;
+  int fileStamp = context.getModificationStamp(source);
+  change.addEdit(file, fileStamp, edit);
+}
+
 /**
  * Create an AnalysisError based on error information from the analyzer
  * engine.  Access via AnalysisError.fromEngine().
  */
 AnalysisError _analysisErrorFromEngine(engine.LineInfo lineInfo,
     engine.AnalysisError error) {
   engine.ErrorCode errorCode = error.errorCode;
   // prepare location
   Location location;
   {
@@ skipping 923 matching lines @@
     hash = 0x1fffffff & (hash + ((0x03ffffff & hash) << 3));
     hash = hash ^ (hash >> 11);
     return 0x1fffffff & (hash + ((0x00003fff & hash) << 15));
   }
 
   static int hash2(a, b) => finish(combine(combine(0, a), b));
 
   static int hash4(a, b, c, d) =>
       finish(combine(combine(combine(combine(0, a), b), c), d));
 }