rust-lang/rust — pull request #16377 by pcwalton (2014-08-09 02:18:13+00:00)
Title: librustc: Implement associated types behind a feature gate.

This is waiting on an RFC, but this basic functionality should be
straightforward. The implementation essentially desugars during type
collection and AST type conversion time into the parameter scheme we
have now.

r? @nikomatsakis