Fix PR92901: Change test expectation for C++ in OpenACC test clause-locations.c

The columns of the clause locations that are reported for C and C++ are
different and hence we need separate test expectations for both languages.

2019-12-11  Frederik Harwath  <frederik@codesourcery.com>

	PR other/92901
	/gcc/testsuite/
	* c-c++-common/clause-locations.c: Adjust test expectation for C++.

From-SVN: r279215

gcc/testsuite/ChangeLog

+2019-12-11  Frederik Harwath  <frederik@codesourcery.com>
+
+	PR other/92901
+	* c-c++-common/clause-locations.c: Adjust test expectation for C++.
+
 2019-12-11  Hongtao Liu  <hongtao.liu@intel.com>
 
 	* gcc.target/i386/pr92865-1.c: New test.

gcc/testsuite/c-c++-common/goacc/clause-locations.c

@@ -9,7 +9,9 @@ check_clause_columns() {
     #pragma acc loop reduction(+:sum)
     for (i = 1; i <= 10; i++)
       {
-        #pragma acc loop reduction(-:diff) reduction(-:sum)  /* { dg-warning "53: conflicting reduction operations for .sum." } */
+        #pragma acc loop reduction(-:diff) reduction(-:sum)
+	/* { dg-warning "53: conflicting reduction operations for .sum." "" { target c } .-1 } */
+	/* { dg-warning "56: conflicting reduction operations for .sum." "" { target c++ } .-2 } */
 	for (j = 1; j <= 10; j++)
 	  sum = 1;
       }