Add test for issue 28821

pkg/analyzer/test/generated/strong_mode_driver_test.dart

Index: pkg/analyzer/test/generated/strong_mode_driver_test.dart
diff --git a/pkg/analyzer/test/generated/strong_mode_driver_test.dart b/pkg/analyzer/test/generated/strong_mode_driver_test.dart
index 40d36855a4308ec05e693e43b7f2a28681797264..5fc92b8da0de68cdedfba82399468c883c3ab6ed 100644
--- a/pkg/analyzer/test/generated/strong_mode_driver_test.dart
+++ b/pkg/analyzer/test/generated/strong_mode_driver_test.dart
@@ -58,6 +58,12 @@ class StrongModeStaticTypeAnalyzer2Test_Driver
 
   @failingTest
   @override
+  test_genericMethod_override_covariant_field() async {
+    return super.test_genericMethod_override_covariant_field();
+  }
+
+  @failingTest
+  @override
   test_genericMethod_tearoff() {
     return super.test_genericMethod_tearoff();
   }