[Bug sanitizer/66343] "Error: .Lubsan_type3 already defined" with UBSan and precompiled headers

[marc.mutz at kdab dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66343

--- Comment #14 from Marc Mutz <marc.mutz at kdab dot com> ---
More examples (incl. ones with .Lubsan_type3) available on request.