mozilla/rust — pull request #14797 by pcwalton (2014-06-10 21:15:54+00:00)
Title: librustc: Fix the issue with labels shadowing variable names by making

the leading quote part of the identifier for the purposes of hygiene.

This adopts @jbclements' solution to #14539.

I'm not sure if this is a breaking change or not.

[breaking-change]

r? @alexcrichton