Rename 111-compile to 111-compile2.

Not a great name, but make it obvious that this is a slightly different test
from 110-compile.

t/111-compile2/main.c

@@ -0,0 +1,8 @@
+#include <stdio.h>
+#include "mystr.h"
+
+int main()
+{
+    printf("%s\n", mystr);
+    return 0;
+}