- remove Title from method signatures in CategoryViewer https://gerrit.wikimedia.org/r/c/mediawiki/core/+/678243
- replace usage of Title in BacklinkCache
- replace usage of Title in WikiImporter (careful about the callbacks, though)
- explore removal of Title from File/FileRepo and friends. May be too big.
- replaceusage of Title in HTMLForm (will have to convert to Title until Title.:getLocalURL has been extracted; deprecating getTitle will take more work)
- replace usage of Title in TextboxBuilder (internal conversion needs ProtectetionManager)