mozilla/rust — pull request #3769 by nikomatsakis (2012-10-14 21:06:00+00:00)
Title: Check whether loans conflict with old loans or with themselves.

Along the way, convert from dvec-of-dvec representation to track loans in scope
to just a single flattened list. It's more convenient.

Fixes #3765.

I'm actually not sure whether this needs review. I'm inclined to think not, it's a fairly targeted bug fix. But I thought I'd throw it up as a pull request and give people the chance to tell me if they agree. =)