[Bug c++/94890] std::tuple({0}) fails to compile with -std=c++2a

[ppalka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94890

--- Comment #3 from Patrick Palka <ppalka at gcc dot gnu.org> ---
Whoops, the above minimal testcase doesn't actually illustrate any bug, we just
correctly accept it in c++2a mode ever since r10-6519.  Hmm...