[patch, fortran] PR33055 Runtime error in INQUIRE unit existance with -fdefault-integer-8

[Thomas Koenig]

Hi Jerry,

> Regression tested on x86-64-Gnu-Linux.  Updated test case provided in patch to 
> include the tricky code.  Checked with -fdefault-integer-8.
> 
> OK for trunk?

Also regression-tested on i686-pc-linux-gnu.

OK.  As discussed on IRC yesterday, please add a test case identical
to the existing negative_unit.f except that it includes
-fdefault-integer-8.

Thanks!

	Thomas