[patch, fortran] Fix PR 88669, rejects-valid

[Thomas Koenig]

Hello world,

the attached, rather straightforward patch fixes a rejects-valid error
by fixing up the contiguous attribute for a class, and by using the
correct attributes.

Regression-tested.  OK for trunk?

Regards

	Thomas

2019-01-27  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/88669
	* resolve.c (resolve_component): If the reference is a BT_CLASS,
	copy the contiguous attribute from the reference and use the
	correct attributes.

2019-01-27  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/88669
	* gfortran.dg/contiguous_9.f90: New test.
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