Fix dead_code hint

Change-Id: I30eb074b5346f7c53997e585eda31b374445d807
Reviewed-on: https://dart-review.googlesource.com/c/91500
Auto-Submit: Paul Berry <paulberry@google.com>
Commit-Queue: Brian Wilkerson <brianwilkerson@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
diff --git a/pkg/analyzer/lib/src/generated/resolver.dart b/pkg/analyzer/lib/src/generated/resolver.dart
index 767e9dd..e4b1515 100644
--- a/pkg/analyzer/lib/src/generated/resolver.dart
+++ b/pkg/analyzer/lib/src/generated/resolver.dart
@@ -5040,7 +5040,7 @@
   @override
   void visitForStatement2InScope(ForStatement2 node) {
     throw new UnsupportedError('Implement this');
-    visitStatementInScope(node.body);
+    visitStatementInScope(node.body); // ignore: dead_code
   }
 
   @override