[Bug sanitizer/84863] false-positive -Warray-bounds warning with -fsanitize-coverage=object-size

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84863

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Never use -Werror with -fsanitize=*, those really do cause new warnings because
the code intentionally is less optimized and the runtime check themselves
prevent further optimizations, so warnings that depend on optimizations can't
work properly.