Fixed Issue #1115: test expectation corrected.
diff --git a/LanguageFeatures/Super-mixins/compatible_t04.dart b/LanguageFeatures/Super-mixins/compatible_t04.dart
index 08da078..4b4f5ad 100644
--- a/LanguageFeatures/Super-mixins/compatible_t04.dart
+++ b/LanguageFeatures/Super-mixins/compatible_t04.dart
@@ -34,6 +34,7 @@
 
 class MA extends C<X> with M<X, Y> {
 //    ^
+// [analyzer] unspecified
 // [cfe] unspecified
 }