Incorrect estraverse require

[arcanis]

babel-eslint is requiring estraverse using eslintMod - this is invalid, since estraverse is not listed as a dependency of eslint. Should it be added as dependency of babel-eslint, and a real require be used instead?

babel-eslint/lib/patch-eslint-scope.js

Line 36 in 6aa8b6f

var estraverse = eslintMod.require("estraverse");

[arcanis]

Ping @hzoo @loganfsmyth? 🙂