[Patch, Fortran] PR 41755 - Fix segfault for invalid EQUIVALENCE

[Daniel Kraft]

Tobias Burnus wrote:
> I think the patch is obvious. As it works with 4.2, it is a regression.
> 
> The FIXME change is unrelated and small - and obviously only for the trunk.
> 
> Build and regtested on x86-64-linux.
> OK for the trunk and 4.4? - I can also commit it for 4.3, if deemed useful.

Ok for all of them, I think 4.4 might be a good idea but don't really 
care about that and 4.3, so as you please :)

Thanks for fixing this!

Daniel

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