[Bug sanitizer/81021] stack-use-after-scope false positive error with exceptions

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81021

--- Comment #4 from Martin Liška <marxin at gcc dot gnu.org> ---
Created attachment 41537
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41537&action=edit
Untested patch