[patch, fortran, testsuite] Rename tests with inappropriate number format

[Brooks Moses]

Steve Kargl wrote:
> On Mon, Dec 18, 2006 at 03:51:38PM -0800, Brooks Moses wrote:
>> 	* gfortran.dg/assign_4.f90: Renamed to...
>> 	* gfortran.dg/assign_8.f90: ...new filename.
> 
> Is this right?

Yes, although the reason isn't obvious.  There's also an assign_4.f, and 
numbers _5 through _7 were already taken, so I moved assign_4.f90 to the 
next available slot.

>> Tested on i686-pc-linuc-gnu.  Ok for trunk?
> 
> For consistency, yes. 

Thanks.  Committed.

- Brooks