Comment #2 on pull request 1086 by kimgr: Remove fruitless Base::Visit calls
@bolshakov-a Yeah, it might happen, but the way I understand `BaseAstVisitor` it is very bare-bones and shouldn't contain any significant logic.
This was mostly for consistency -- all the places that called `Base::Visit...` were added later in IWYU's lifetime, after the original authors had jumped ship. So it looked like their original intent was _not_ to call it.
If we need some kind of base functionality in the future, I think we should consistently fix all `Visit` methods first.