Convert server to use RangeFactory

pkg/analysis_server/lib/src/services/refactoring/rename_constructor.dart

Index: pkg/analysis_server/lib/src/services/refactoring/rename_constructor.dart
diff --git a/pkg/analysis_server/lib/src/services/refactoring/rename_constructor.dart b/pkg/analysis_server/lib/src/services/refactoring/rename_constructor.dart
index e23c60c1d32613d8207cedd976ab135b61751ffa..0bbe817843523e4fc9eda7e0d5da4d1f27640cf3 100644
--- a/pkg/analysis_server/lib/src/services/refactoring/rename_constructor.dart
+++ b/pkg/analysis_server/lib/src/services/refactoring/rename_constructor.dart
@@ -7,7 +7,6 @@ library services.src.refactoring.rename_constructor;
 import 'dart:async';
 
 import 'package:analysis_server/src/protocol_server.dart' hide Element;
-import 'package:analysis_server/src/services/correction/source_range.dart';
 import 'package:analysis_server/src/services/correction/status.dart';
 import 'package:analysis_server/src/services/correction/util.dart';
 import 'package:analysis_server/src/services/refactoring/naming_conventions.dart';
@@ -22,6 +21,7 @@ import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/src/dart/element/ast_provider.dart';
 import 'package:analyzer/src/generated/java_core.dart';
 import 'package:analyzer/src/generated/source.dart';
+import 'package:analyzer_plugin/utilities/range_factory.dart';
 
 /**
  * A [Refactoring] for renaming [ConstructorElement]s.
@@ -95,10 +95,11 @@ class RenameConstructorRefactoringImpl extends RenameRefactoringImpl {
 
   SourceReference _createDeclarationReference() {
     SourceRange sourceRange;
-    if (element.periodOffset != null) {
-      sourceRange = rangeStartEnd(element.periodOffset, element.nameEnd);
+    int offset = element.periodOffset;
+    if (offset != null) {
+      sourceRange = range.offsetEndIndex(offset, element.nameEnd);
     } else {
-      sourceRange = rangeStartLength(element.nameEnd, 0);
+      sourceRange = new SourceRange(element.nameEnd, 0);
     }
     return new SourceReference(new SearchMatchImpl(
         element.context,