mozilla/rust — pull request #7391 by bblum (2013-06-25 22:45:42+00:00)
Title: Make ^~~~~ colour dependent on error/warning/note level.

So the span indicator for errors is red, for warnings is yellow, and for notes is green. The current way, where it's green no matter the severity, is visually inconsistent; this new way is visually reinforcing.

Also correct spelling of squigglies.