mozilla/rust — pull request #4888 by cyndis (2013-02-11 19:07:05+00:00)
Title: Fix behavior of file!, line! and col!

file!, line! and col!, when used in a macro, have been returning the position in the macro itself, not in its expansion. See issue #3066. This patch fixes the behavior by walking ext_ctxt's ExpnInfos to the top or until include! is used and using that span.