[Bug c++/116306] Compiler halts during negative case in requires statement when defining concept (unpacking variadic arguments)

[rekerner at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116306

--- Comment #1 from Bob Kerner <rekerner at gmail dot com> ---
Note: I intended to submit this with the output of the GCC 14.2 compiler, but
used 11 instead.  The problem exists in GCC 14.2 as well.