[Bug fortran/61933] Inquire on internal units

[Joost.VandeVondele at mat dot ethz.ch]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61933

--- Comment #13 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> ---
(In reply to Jerry DeLisle from comment #12)
> (In reply to Joost VandeVondele from comment #11)
> 
> See patch here:
> 
> https://gcc.gnu.org/ml/gcc-patches/2015-01/msg01616.html

Thanks! One minor nit for the testcase,

inquire (unit=i, exist=l, iostat=i)

I guess this kind of aliasing of i is strictly speaking not OK?