Re: Fix some tooltip related problems

[martin rudalics]

> What would that do to Lisp code that was probing that frame parameter?
> I think for backward compatibility we should pretend in
> frame-parameters and frame-parameter that this parameter still exist,
> at least for tooltip frames.
>
> IOW, remove it only for internal bookkeeping.

How about adding it to `tooltip-frame-parameters' then?

martin