Curried bounded function works wrong.

[Sitin]

It seems that curried bounded function looses it's context.
The following test written in LiveScript for Node.js fails.

/*
 * Curried bounded function works wrong.
 */
assert = require \assert

class A
  (@list = \middle) ->

  enclose: (head, tail) ~~>
    [head, @list, tail].join!

a = new A

fn = a.enclose \head
curried = fn \tail

plain = a.enclose \head, \tail

# "Plain" and curried results should be equal:
assert.equal curried, plain