[Bug c/111769] Annotate function definitions and calls to facilitate link-time checking

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111769

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
If you compile with debug info enabled the info should be already there, just
nothing looks at this (and mismatches) at link time.