[Bug c++/103518] g++ hangs on invalid code

[egor.pugin at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103518

--- Comment #2 from Egor Pugin <egor.pugin at gmail dot com> ---
Callgrind https://www.dropbox.com/s/3ro2ulrfp6jma8f/callgrind.out.39995?dl=1

Interestingly, clang++-13 hangs for 50 s. while gcc for 150 s.
Probably, clang also does something wrong here.