mozilla/rust — pull request #8639 by singingboyo (2013-08-20 09:15:25+00:00)
Title: Clarify use_decl module resolution docs.

Attempt #2 of [this pull request](https://github.com/mozilla/rust/pull/8597) since my tired mind decided messing up my repo, then deleting and re-forking was a good idea. This is identical to the second last commit in that PR. (The one before I ruined everything.)

This is an improvement to use_decl docs, which will hopefully improve understanding of how resolution works and where `extern mod` and module declarations should go to make them visible to use declarations.