Change @dataprovider to static in TitleResolverTest

In this one the data provider has exactly two cases so the simplest thing to do is just merge them into a single test case.

Seems straight forward enough.

catch → closed merge request !7736

Yes it's even a net reduction in code.

Committed/pushed to 11.x and cherry-picked to 10.3.x, thanks!

Automatically closed - issue fixed for 2 weeks with no activity.