Add test-cases for "[nvptx] Force vl32 if calling vector-partitionable
routines".

2019-01-12  Tom de Vries  <tdevries@suse.de>

	PR target/85486
	* testsuite/libgomp.oacc-c-c++-common/pr85486-3.c: New test.
	* testsuite/libgomp.oacc-c-c++-common/pr85486.c: New test.

From-SVN: r267894