[Bug c++/59955] Segmentation fault on (re?)defining a struct template as function template, when inside a struct tempate

[paolo.carlini at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59955

--- Comment #5 from Paolo Carlini <paolo.carlini at oracle dot com> ---
This is already fixed in mainline, I'm adding the testcase and closing the bug.