[Bug c/123708] Compiler crash while comparing incompatible function signatures referencing incomplete recursive structs.

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123708

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Created attachment 63434
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=63434&action=edit
Reduced