Improve filenames for test cases of OpenACC combined directives

	libgomp/
	* testsuite/libgomp.oacc-c-c++-common/combdir-1.c: Rename to...
	* testsuite/libgomp.oacc-c-c++-common/combined-directives-1.c:
	... this.  Add a description of the test at the top of the file.
	* testsuite/libgomp.oacc-fortran/combdir-1.f90: Rename file to...
	* testsuite/libgomp.oacc-fortran/combined-directives-1.f90:
	... this.  Add a description of the test at the top of the file.

Co-Authored-By: Cesar Philippidis <cesar@codesourcery.com>

From-SVN: r229518

libgomp/ChangeLog

+2015-10-29  Thomas Schwinge  <thomas@codesourcery.com>
+	    Cesar Philippidis  <cesar@codesourcery.com>
+
+	* testsuite/libgomp.oacc-c-c++-common/combdir-1.c: Rename to...
+	* testsuite/libgomp.oacc-c-c++-common/combined-directives-1.c:
+	... this.  Add a description of the test at the top of the file.
+	* testsuite/libgomp.oacc-fortran/combdir-1.f90: Rename file to...
+	* testsuite/libgomp.oacc-fortran/combined-directives-1.f90:
+	... this.  Add a description of the test at the top of the file.
+
 2015-10-28  Nathan Sidwell  <nathan@codesourcery.com>
 
 	* testsuite/libgomp.oacc-c-c++-common/loop-g-1.c: New.

libgomp/testsuite/libgomp.oacc-c-c++-common/combdir-1.c → libgomp/testsuite/libgomp.oacc-c-c++-common/combined-directives-1.c

+/* This test exercises combined directives.  */
+
 /* { dg-do run } */
 
 #include <stdlib.h>

libgomp/testsuite/libgomp.oacc-fortran/combdir-1.f90 → libgomp/testsuite/libgomp.oacc-fortran/combined-directives-1.f90

+! This test exercises combined directives.
+
 ! { dg-do run }
 
 program main