Pass target elements being renamed into validator.

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.
 
 import 'dart:async';
 
 import 'package:analysis_server/src/protocol_server.dart' hide Element;
 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/refactoring.dart';
 import 'package:analysis_server/src/services/refactoring/refactoring_internal.dart';
 import 'package:analysis_server/src/services/search/search_engine.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/java_core.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer_plugin/utilities/range_factory.dart';
 import 'package:path/path.dart' as pathos;
 
 /**
- * Returns `true` if two given [Element]s are [LocalElement]s and have
- * intersecting with visibility ranges.
- */
-bool haveIntersectingRanges(LocalElement localElement, Element element) {
-  if (element is! LocalElement) {
-    return false;
-  }
-  LocalElement localElement2 = element as LocalElement;
-  Source localSource = localElement.source;
-  Source localSource2 = localElement2.source;
-  SourceRange localRange = localElement.visibleRange;
-  SourceRange localRange2 = localElement2.visibleRange;
-  return localSource2 == localSource &&
-      localRange != null &&
-      localRange2 != null &&
-      localRange2.intersects(localRange);
-}
-
-/**
  * Checks if [element] is defined in the library containing [source].
  */
 bool isDefinedInLibrary(
     Element element, AnalysisContext context, Source source) {
   // should be the same AnalysisContext
   if (!isInContext(element, context)) {
     return false;
   }
   // private elements are visible only in their library
   List<Source> librarySourcesOfSource = context.getLibrariesContaining(source);
@@ skipping 166 matching lines @@
     if (element is ImportElement) {
       PrefixElement prefix = element.prefix;
       if (prefix != null) {
         return prefix.displayName;
       }
       return '';
     }
     return element.displayName;
   }
 }