Now when autocompleting it shows the result alphabetically, which is fine. But it also sorts the result with most letters on top, which doesn't make sense if you're looking for a e.g. class with a short name.

For example autocompleting QNetworkReply you could just press Ctrl+Space Q+N+R. But this will suggest QNetworkReplyPrivate at top!

It would be way better if the shorter (QNetworkReply) was shown first on top and then QNetworkReplyPrivate as a second option, since the natural way to complete the *Private class would be to just add another 'P' while completing; Ctrl+Space Q+N+R+P.

This is actually pretty annoying since it's so common! There are many classes which also have it's *Private counterpart and every time one likes to complete such classes, och will either have to press the down-arrow before pressing Enter or remove the "Private" part from the name which often accidently becomes the choosen one.

(EDIT: Seems like the sort order is actually pretty random, but it still has to sort with the fewest words on top every time!)