vlib/v/checker/tests/array_delete_arg_mismatch_err.vv:18:23: error: cannot use `IGameObject` as `int` in argument 1 to `.delete()`
   16 | fn (mut game Game) gc() {
   17 |     for obj in game.objects {
   18 |         game.objects.delete(obj)
      |                             ~~~
   19 |     }
   20 |     game.objects.clear()