[Bug c++/122070] [14/15/16 Regression] ICE with type aliases in inherited CTAD since r15-2864

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122070

--- Comment #5 from Patrick Palka <ppalka at gcc dot gnu.org> ---
FWIW a workaround is to name basic_string_view<char> directly within the
using-decl: https://godbolt.org/z/MbYov5z4j