atom/atom-keymap — pull request #46 by kevinsawicki (2014-09-08 22:01:31+00:00)
Title: Use property accessor for deprecated properties

Noticed keybindings showing up in the profile and digging in I found that using property accessor was significantly faster than doing `@__defineSetter__` in the constructor for each created key binding.

This shaves 10-15 milliseconds off of creating 400 keybindings (which is how many Atom currently has) which should give startup time a small boost.