[Bug c/121931] no_sanitize attribute should also apply to global variables

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121931

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Sam James from comment #1)
> Wonder if any applications are actually using this..

I have been trying to find the reason why it applies in clang and the use case.