Fix PR42988: handle unknown_dependence.

Fix PR42988: handle unknown_dependence.

2010-02-07  Sebastian Pop  <sebastian.pop@amd.com>

	PR middle-end/42988
	* graphite-dependences.c (dependence_polyhedron): Set PDDR_KIND
	to unknown_dependence.
	(graphite_legal_transform_dr): Handle the unknown_dependence.
	(graphite_carried_dependence_level_k): Same.

	* testsuite/libgomp.graphite/force-parallel-5.c: Un-XFAILed.
	* testsuite/libgomp.graphite/pr41118.c: Renamed from pr4118.

From-SVN: r156582