Fix SpecialPageFactory::getTitleForAlias

It takes the result of resolveAlias and calls SpecialPage::getTitleFor.
Unfortunately, resolveAlias returns an array of [name, subpage] while
getTitleFor expects two string arguments.

This commit makes SpecialPageFactory::getTitleForAlias call
SpecialPage::getTitleFor with two string arguments instead of an array.

Bug: 67045
Change-Id: Ia1a0abf753b03fc69d3d4de025c88312e3e45763
Merge "Fix SpecialPageFactory::getTitleForAlias"