mozilla/rust — pull request #12170 by aepsil0n (2014-02-10 23:27:47+00:00)
Title: Reserve `do` as a keyword

This resolves issue #12157. Does that do it already or is there something else that needs taking care of?

As a side note, there seems to be some documentation, in which the old existence of the do keyword is explained. The list of keywords is not up-to-date either. But these are certainly separate issues.