Fix generic_function_type_argument_test

Change-Id: Ic8e043a25eaefa8852e81fbbb4f40ec4931c0dd9
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192261
Auto-Submit: Leaf Petersen <leafp@google.com>
Commit-Queue: Lasse R.H. Nielsen <lrn@google.com>
Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
diff --git a/tests/language/generic/generic_function_type_argument_test.dart b/tests/language/generic/generic_function_type_argument_test.dart
index c51c674..c54516f 100644
--- a/tests/language/generic/generic_function_type_argument_test.dart
+++ b/tests/language/generic/generic_function_type_argument_test.dart
@@ -28,7 +28,7 @@
 typedef FB<T extends F> = S Function<S extends T>(S);
 
 // For a class:
-class CB<T extends F> {
+class CB<T extends FB<F>> {
   final T function;
   const CB(this.function);
 }