bug#166: frame par'ms top + left ignored when frame invisible

[Chong Yidong]

> In an Emacs -Q  (Carbon, current build), frame parameters "top" and  
> "left" aren't set when the frame they are applied to is hidden:
>
> In the following, the frame's width is adjusted correctly, but not its  
> vertical position:
>
> (let ((f (make-frame '((visibility . nil)))))
>      (modify-frame-parameters f '((top . 30) (width . 100)))
>      (make-frame-visible f))
>
> If the frame is made visible before calling `modify-frame-parameters',  
> things work as expected.

Works for me on GNU/Linux.  Does it work for the new Emacs 23 Cocoa
build?