[Bug c++/120421] -save-temps affects diagnostic position

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120421

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
There is not much to be done here really. Column info is basically totally lost
from preprocessing.