Issue 22833. Quick Assist to convert for-each into for-index.

pkg/analysis_server/lib/src/services/correction/assist.dart

Index: pkg/analysis_server/lib/src/services/correction/assist.dart
diff --git a/pkg/analysis_server/lib/src/services/correction/assist.dart b/pkg/analysis_server/lib/src/services/correction/assist.dart
index 505464468ba2b90e9253ec49e8b90764afd2f301..f71a98f2f4d40ea2c17da7142f25f81b816515cd 100644
--- a/pkg/analysis_server/lib/src/services/correction/assist.dart
+++ b/pkg/analysis_server/lib/src/services/correction/assist.dart
@@ -51,6 +51,8 @@ class AssistKind {
       'CONVERT_INTO_BLOCK_BODY', 30, "Convert into block body");
   static const CONVERT_INTO_EXPRESSION_BODY = const AssistKind(
       'CONVERT_INTO_EXPRESSION_BODY', 30, "Convert into expression body");
+  static const CONVERT_INTO_FOR_INDEX = const AssistKind(
+      'CONVERT_INTO_FOR_INDEX', 30, "Convert into for-index loop");
   static const CONVERT_INTO_IS_NOT =
       const AssistKind('CONVERT_INTO_IS_NOT', 30, "Convert into is!");
   static const CONVERT_INTO_IS_NOT_EMPTY = const AssistKind(