test/run-pass/traits-default-method-self.rs fails with ICE in trans

[lkuper]

This is a long-standing bug with default methods. I'm just opening a new issue that's more specific than #2794.

Here's a backtrace: https://gist.github.com/4458486

[graydon]

reproduced on 2013-03-22

[graydon]

non-critical for 0.6, de-milestoning

[ILyoan]

reproduced on 2013-05-08

[msullivan]

Marking that this was part of #2794 for tracking purposes.