[Bug c++/67397] GCC incorrectly accepts non-type template parameter pack expansion of a parameter pack declared in the same template-parameter-list

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67397

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
ICC 2021.3.0 rejects it.
MSVC 19.14+, clang trunk and GCC trunk all accept it