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-compile/main.c

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