[Bug c++/98538] [11 Regression] ICE in cp_build_qualified_type_real, at cp/tree.c:1335

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98538

--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Valid test:

template <typename U, long> using CArray = U[];
template <typename U, long Extent, const CArray<U, Extent>> struct X { };