This fixes the menu of BibleWorks 10 not showing up and some todo in
tests.

Sysmenu is in non-client area. And because MapWindowPoints() should
not be used with non-client area coordinates. Doing so results in
wrong coordinates for sysmenu item rectangles.
Signed-off-by: Zhiyi Zhang <zzhang@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>