mozilla/rust — pull request #3975 by killerswan (2012-11-15 05:45:08+00:00)
Title: Add Map::insert_with_key

As discussed in #2504, this adds an `insert_with_key` ([as in Haskell](http://hackage.haskell.org/packages/archive/containers/0.4.0.0/doc/html/Data-Map.html#g:5 as in Haskell)) to the `Map` trait.