bug#74750: clone-frame and make-frame pixelwise issues

[martin rudalics]

> I'd write that as
>
>    If PIXELWISE or `frame-resize-pixelwise' is non-nil and FRAME's terminal
>    is not text-only, use the pixel size of FRAME for the cloned frame.
>    Otherwise, use the number of columns and lines of FRAME for the cloned
>    frame.

But may be we should write

               (and pixelwise frame-resize-pixelwise))

and say

  If PIXELWISE and `frame-resize-pixelwise' are both non-nil and FRAME's
  terminal is not text-only, use the pixel size of FRAME for the cloned
  frame.  Otherwise, use the number of columns and lines of FRAME for
  the cloned frame.

Setting PIXELWISE to t in a setting where 'frame-resize-pixelwise' is
nil means asking for trouble since the window manager might not honor
it.  WDYT?

martin