[Patch, Fortran + Testsuite] Fix coarray handling in modules

[Tobias Burnus]

Dominique d'Humières wrote:
>  From a quick test, with the patch I still see the error with -m32

It helps if one actually adds the decl. The following (still untested) 
should help. I also marked the token as nonaliasing (it really should!) 
and added for proc pointers the tree-public optimization.

Tobias
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