[Bug other/82784] Remove semicolon after "do {} while (0)" macros

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82784

--- Comment #4 from Tom de Vries <vries at gcc dot gnu.org> ---
Created attachment 42506
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42506&action=edit
More minimal asan.c patch