[Bug c++/92654] internal compiler error: in lookup_template_class_1

[fiesh at zefix dot tv]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92654

--- Comment #3 from fiesh at zefix dot tv ---
(Or is there some other trick to make it valid apart from extending the
interestingness test of creduce to include a clang compilation step?)