[Bug plugins/105171] gcc/toplev.c: `local_tick` can overflow and become -1

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105171

--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
As has been said, we can't retroactively change released compilers from the
last 2 decades.  And going forward, I think walking the save_decoded_options is
just fine and reliable, other plugins use that too.