[Bug preprocessor/69543] [6/7 Regression] _Pragma does not apply within macro

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69543

--- Comment #8 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
The following testcases still have xfails:
  c-c++-common/pr69543-3.c
  c-c++-common/pr69543-4.c
so this isn't quite fixed yet.