Add a test that bad hostnames fail
diff --git a/test/core/end2end/end2end_tests.h b/test/core/end2end/end2end_tests.h
index b6d9325..41c6e2e 100644
--- a/test/core/end2end/end2end_tests.h
+++ b/test/core/end2end/end2end_tests.h
@@ -40,6 +40,7 @@
 typedef struct grpc_end2end_test_config grpc_end2end_test_config;
 
 #define FEATURE_MASK_SUPPORTS_DELAYED_CONNECTION 1
+#define FEATURE_MASK_SUPPORTS_HOSTNAME_VERIFICATION 2
 
 struct grpc_end2end_test_fixture {
   grpc_completion_queue *server_cq;