jashkenas/coffee-script — pull request #3233 by xixixao (2013-11-10 00:19:43+00:00)
Title: Clean up `Method calls on splice endpoints`

As per the discussion here https://github.com/jashkenas/coffee-script/commit/e7ebdce60fadb4349318f14a4409d1a077a63ebf#commitcomment-4379191 I removed the existential check. I also removed the unnecessary `+` typing, since `-` operator does that already.