[Bug debug/67665] ICE when passing two empty files directly to cc1 with -g

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67665

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This looks like a left over from --combine where cc1 does not reject more than
one file.