[Bug sanitizer/84210] __ubsan_handle_builtin_unreachable shoun't be const

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84210

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |mpolacek at gcc dot gnu.org

--- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> ---
The const for the builtin was added by Marek as fix for PR63839.
Adding him to CC.