(This affects qdoc with unmerged commits):
c089fee9 qdoc: Don't output docs for internal things
904c8ba7 qdoc: Update qdoc's QML parser
c1be21a9 qdoc: Corrected error in QDocDatabase::findQmlType()
732e3c9f qdoc: Part 2 of fix for inheriting abstract QML types
3084630a qdoc: Internal QML Types no longer marked public
33362b91 qdoc: Snippets files no longer parsed by qdoc
e50244f3 qdoc:headers and sources paths are canonicalized
a981b3c5 qdoc: Include internal types in the index files

Internal QML types appear in 'All QML Types' list.

These include AbstractCheckable, BasicButton, FocusFrame (from qtquickcontrols) and others. When clicked, no html page found (as expected).