Fix -Wreturn-type fallout in g++.dg/cpp0x/rv-trivial-bug.C on Solaris 10

	* g++.dg/cpp0x/rv-trivial-bug.C (test2): Return a value.

From-SVN: r254760

gcc/testsuite/ChangeLog

+2017-11-15  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* g++.dg/cpp0x/rv-trivial-bug.C (test2): Return a value.
+
 2017-11-15  Jakub Jelinek  <jakub@redhat.com>
 
 	PR target/82981

gcc/testsuite/g++.dg/cpp0x/rv-trivial-bug.C

@@ -24,6 +24,7 @@ int test2()
     assert(move_assign == 0);
     b = static_cast<base2&&>(b2);
     assert(move_assign == 1);
+    return 0;
 }
 
 int main()