[Bug c++/100079] [9/10/11 Regression] Non-type template parameter, itself a nested template, rejected with internal error

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100079

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
I'd say it is valid rather than invalid, it is accepted with
// using SomeTypeAlias = int;
and clang++ on godbolt accepts it in c++20 mode too.