Merge pull request #26193 from dart-lang/strongrename

Minor change to fix some strong-mode errors
diff --git a/pkg/analysis_server/lib/src/services/refactoring/rename.dart b/pkg/analysis_server/lib/src/services/refactoring/rename.dart
index b6f54c1..df0bf60 100644
--- a/pkg/analysis_server/lib/src/services/refactoring/rename.dart
+++ b/pkg/analysis_server/lib/src/services/refactoring/rename.dart
@@ -128,10 +128,11 @@
 abstract class RenameRefactoringImpl extends RefactoringImpl
     implements RenameRefactoring {
   final SearchEngine searchEngine;
-  final Element element;
+  final Element _element;
   final AnalysisContext context;
   final String elementKindName;
   final String oldName;
+  Element get element => _element;
 
   SourceChange change;
 
@@ -139,7 +140,7 @@
 
   RenameRefactoringImpl(SearchEngine searchEngine, Element element)
       : searchEngine = searchEngine,
-        element = element,
+        _element = element,
         context = element.context,
         elementKindName = element.kind.displayName,
         oldName = _getDisplayName(element);