bring method chaining in sync with new jashkenas/coffee-script behaviour

[michaelficarra]

See jashkenas/coffeescript#3263. This one's probably going to be pretty hard, since it's inconsistent. In explicit call context, the member access would attach to the preceding token, but in an implicit call, it attaches to the function call, closing it. Possibly go one step further and make all spaced member access close implicit calls, ala Coco?

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[vendethiel]

That's what I'd want to see, yes.

[nfour]

+1 for coco's implementation. I felt like CS 1's chaining was a long overdue victory for the language; but this would be even better.