Introduce convenience methods into generated analysis server classes.

pkg/analysis_server/lib/src/services/refactoring/rename_import.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;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/protocol2.dart';
 import 'package:analysis_server/src/services/correction/change.dart';
@@ skipping 40 matching lines @@
     Change change = new Change(refactoringName);
     // update declaration
     {
       String file = getElementFile(element);
       PrefixElement prefix = element.prefix;
       SourceEdit edit = null;
       if (newName.isEmpty) {
         int uriEnd = element.uriEnd;
         int prefixEnd = element.prefixOffset + prefix.displayName.length;
         SourceRange range = rangeStartEnd(uriEnd, prefixEnd);
-        edit = editFromRange(range, "");
+        edit = new SourceEdit.range(range, "");
       } else {
         if (prefix == null) {
           SourceRange range = rangeStartLength(element.uriEnd, 0);
-          edit = editFromRange(range, " as ${newName}");
+          edit = new SourceEdit.range(range, " as ${newName}");
         } else {
           int offset = element.prefixOffset;
           int length = prefix.displayName.length;
           SourceRange range = rangeStartLength(offset, length);
-          edit = editFromRange(range, newName);
+          edit = new SourceEdit.range(range, newName);
         }
       }
       if (edit != null) {
         change.addEdit(file, edit);
       }
     }
     // update references
     return searchEngine.searchReferences(element).then((refMatches) {
       List<SourceReference> references = getSourceReferences(refMatches);
       for (SourceReference reference in references) {
         SourceEdit edit;
         if (newName.isEmpty) {
           edit = createReferenceEdit(reference, newName);
         } else {
           edit = createReferenceEdit(reference, "${newName}.");
         }
         change.addEdit(reference.file, edit);
       }
       return change;
     });
   }
 }