[Bug c++/65592] internal compiler error: Segmentation fault when using non-existent enum class enumerator

[paolo.carlini at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65592

--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> ---
This issue is already fixed in mainline. I'm adding a testcase and closing it.