[Bug c++/119447] [14/15 Regression] ICE Segmentation fault with incorrect template class declaration syntax and varadic parameter since r14-9374

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119447

--- Comment #3 from Patrick Palka <ppalka at gcc dot gnu.org> ---
That approach seems reasonable to me FWIW. Alternatively maybe we could fall
back to using the dependent DECL_CONTEXT (gen_tmpl) as 'ctx' if
tsubst_entering_scope fails.