Fixed Issue #465: test corrected, @Issue tag for the SDK bug 40514 added.
diff --git a/LanguageFeatures/nnbd/override_checking_A02_REQ_ARGS_t12.dart b/LanguageFeatures/nnbd/override_checking_A02_REQ_ARGS_t12.dart
index 95bea84..86445af 100644
--- a/LanguageFeatures/nnbd/override_checking_A02_REQ_ARGS_t12.dart
+++ b/LanguageFeatures/nnbd/override_checking_A02_REQ_ARGS_t12.dart
@@ -13,6 +13,7 @@
  * method with non-required non-nullable parameter cannot override legacy method
  * with named parameter (which is nullable) with default value.
  *
+ * @Issue 40514
  * @author iarkh@unipro.ru
  */
 // SharedOptions=--enable-experiment=non-nullable
diff --git a/LanguageFeatures/nnbd/override_checking_A02_REQ_ARGS_t24.dart b/LanguageFeatures/nnbd/override_checking_A02_REQ_ARGS_t24.dart
index 2510c5c..52367fa 100644
--- a/LanguageFeatures/nnbd/override_checking_A02_REQ_ARGS_t24.dart
+++ b/LanguageFeatures/nnbd/override_checking_A02_REQ_ARGS_t24.dart
@@ -28,7 +28,7 @@
 
 class B extends A {
   void test_default   ({int i = 1}) { Expect.equals(1, i); }
-  void test_nondefault({int i})     {}
+  void test_nondefault({int i = 1}) {}
 }
 
 main() {