[Bug c++/107111] GCC accepts invalid program involving function declaration with pack expansion

[jlame646 at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107111

--- Comment #1 from Jason Liam <jlame646 at gmail dot com> ---
The last statement in my original report is not valid because `V` is a template
parameter pack. So ignore that line.