MW-Peachy/Peachy — pull request #57 by Jarry1250 (2014-02-24 00:54:31+00:00)
Title: Introduce type hinting for Wiki class

The Wiki class gets passed around a lot. Type hinting is helpful
and is cost-free when there are no back-compat issues.

See also
https://www.mediawiki.org/wiki/Architecture_guidelines#Type_Hinting