Re: More bugs...

[Mehrdad]

Yes, that non-global issue was the exact issue I was referring to. It drives 
me nuts whenever I try to give in and use templates.

Regarding your "fix":
Is it *really* intended that user should say
  arr.filter((typeof(some_random_expression) x) => x < y);
instead of
  arr.filter(x => x < y);
?

I think it's pretty obvious why that doesn't really work in practice...