[Bug c++/123913] [reflection] Internal Compiler Error in eval_is_function_parameter at cp/reflect.cc:1656 materializing function type parameters

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123913

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 63582
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=63582&action=edit
gcc16-pr123913.patch

Full untested patch.