bug#50993: 29.0.50; Problems when dragging the mouse over the toolbar

[martin rudalics]

> I confirm that your patch breaks nothing.

Thanks.  I installed it meanwhile.  Does tab-dragging work on
mouse-capable TTYs?

> Please suggest how the shape of the mouse pointer could be changed
> in [down-mouse-1], and restored in [drag-mouse-1].

Have you tried setting a 'pointer' property on the entire text in the
tab-bar window for that while?  Honestly, I have never looked into how
the tab-bar is implemented.

martin