[Patch, Fortran, pr85507, v1] Modell variable dependencies in coarray expression correctly.

[Andre Vehreschild]

Hi all,

attached patch partially reverts r259385 preventing an ICE. At the same time
the check_dependency routine is parameterized correctly so that variable
dependencies in coarray expressions are determined more precisely.

Bootstrapped and regtested ok on x86_64-linux-gnu/f27. Ok for trunk,
gcc-8/-7/-6?

Regards,
	Andre
-- 
Andre Vehreschild * Email: vehre ad gmx dot de 
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