[Patch,Fortran] PR43919 - coarray 10/n: Fix (u,l)cobounds for coarray scalars

[Daniel Kraft]

Tobias Burnus wrote:
> (u,l)cobounds gave an ICE for scalar coarrays as they end up with
> ar.type == AR_ELEMENT, which was not handled. The fix is straight forward.
> 
> Build and currently regtesting on x86-64-linux. If successful, OK for
> the trunk?

Ok.

Cheers,
Daniel

-- 
Done:  Arc-Bar-Cav-Ran-Rog-Sam-Tou-Val-Wiz
To go: Hea-Kni-Mon-Pri