[Bug sanitizer/70135] -fsanitize=undefined causes static_assert to fail

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70135

--- Comment #4 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
(In reply to Marek Polacek from comment #3)
> Would be nice to have this reduced :/.  Markus, are you by any chance
> reducing this one or shall I?

I'm on it... Thanks.