tests: Add 70-function-modulo.c.

* lib/tests/scaffold/70-function-modulo.c: New file.
* build-aux/check-mescc.sh (tcc_tests): Add it.

build-aux/check-mescc.sh

@@ -193,6 +193,7 @@ lib/tests/scaffold/70-struct-short-enum-init.c
 lib/tests/scaffold/70-struct-post.c
 lib/tests/scaffold/70-extern.c
 lib/tests/scaffold/70-ternary-arithmetic-argument.c
+lib/tests/scaffold/70-function-modulo.c
 lib/tests/setjmp/80-setjmp.c
 lib/tests/stdio/80-sscanf.c
 lib/tests/stdlib/80-qsort.c

lib/tests/scaffold/70-function-modulo.c

@@ -0,0 +1,34 @@
+/* -*-comment-start: "//";comment-end:""-*-
+ * GNU Mes --- Maxwell Equations of Software
+ * Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+ *
+ * This file is part of GNU Mes.
+ *
+ * GNU Mes is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * GNU Mes is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+int
+test (int i)
+{
+  return i;
+}
+
+int
+main ()
+{
+  int i = test (5) % 3;
+  if (i != 2)
+    return 1;
+  return 0;
+}