[Bug c++/82331] [7/8 Regression] ICE specializing template for function pointer

[paolo.carlini at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82331

--- Comment #5 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Double checked that both the bugs I resolved as duplicates are also fixed.
Thanks!