var actual_base_type = base_method.return_type.get_actual_type (object_type, method_type_args, this);
if (!return_type.equals (actual_base_type)) {
- invalid_match = "Base method expected return type `%s', but `%s' was provided".printf (actual_base_type.to_qualified_string (), return_type.to_qualified_string ());
+ invalid_match = "Base method expected return type `%s', but `%s' was provided".printf (actual_base_type.to_prototype_string (), return_type.to_prototype_string ());
return false;
}