paulmillr/es6-shim — pull request #149 by cscott (2013-10-07 22:01:26+00:00)
Title: Make Map/Set w/ string keys O(1) for get/has/set/delete instead of O(N).

Also updated the return value of `MapIterator.next()` to match 2013-09-27 harmony draft. See: http://people.mozilla.org/~jorendorff/es6-draft.html#sec-mapiterator.prototype.next

Fixes: #148