nikomatsakis/pjs-polyfill — pull request #4 by pnkfelix (2013-09-23 16:03:59+00:00)
Title: Fsk more map par

Fixed bug in mapPar, added a bunch more tests.

(This was originally developed atop the scanPar branch that has a pending PR, but I then rebased it so that Niko can review and land orthogonally.)