[PATCH] Fortran: fix rank/shape check in interface checking [PR124567]

[Harald Anlauf]

Dear all,

the attached patch fixes the issue reported by Salvatore Filippone.

As Tobias already explained, we have the situation that resolution
does not always resolve the ambiguity between deferred shape and
assumed shape.  The attached patch solves this by splitting the
shape check into one for rank (to catch true deferred shape cases)
and shape, the latter making an exception for the described situation.

Regtested on x86_64-pc-linux-gnu.  OK for mainline?

Thanks,
Harald

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