mozilla/rust — pull request #9492 by pnkfelix (2013-09-25 09:05:07+00:00)
Title: #7081 syntax::visit refactor remainder

Part of #7081.

Removed many unnecessary context arguments, turning them into visitors. Removed some @allocation.

If this lands, then I think the only thing left that is unaddressed are:
* the various lint visitors, and
* middle/privacy.rs, which has `impl<'self> Visitor<&'self method_map> for PrivacyVisitor`