Fix TitlePermissionTest failing on non-English setups

This test fails on non-English MediaWiki setups. Yes, the solution
looks kind of hackish, but a proper solution would require major
refactoring of a lot of core classes. Please let us introduce this
quick fix for now.

Change-Id: I0e4fdaca5e7f844f45a2c41572e2e839640714b6
Merge "Fix TitlePermissionTest failing on non-English setups"