bug#21132: 25.0.50; Emacs on Windows crashes evaluating x-frame-geometry in batch mode

[martin rudalics]

>> And do we prefer (FRAME_W32_WINDOW (f) != 0) to (!FRAME_W32_WINDOW (f))?
>
> We prefer !FRAME_W32_P (f)

x_set_foreground_color, x_set_background_color and x_set_mouse_color use

if (FRAME_W32_WINDOW (f) != 0)

Should these be changed?  In x_change_tool_bar_height and
w32_set_title_bar_text we use

if (FRAME_W32_WINDOW (f))

Should these be changed too?

>>   > I believe similar changes are needed in xfns.c and in nsfns.m, could
>>   > someone with access to the relevant OSes please check and apply?
>>
>> I'll look into these.

I fixed these hopefully.  The Gtk build always crashed when invoked with
-nw so I now have `x-frame-geometry' return nil for terminal frames.

martin