Use Polygon() for outlined polygons, too. Same idea as in

Use Polygon() for outlined polygons, too. Same idea as in

2006-03-11  Tor Lillqvist  <tml@novell.com>

	* gdk/win32/gdkdrawable-win32.c (draw_polygon): Use Polygon() for
	outlined polygons, too. Same idea as in draw_rectangle(): Set pen
	to NULL_PEN if drawing a filled polygon, set brush to HOLLOW_BRUSH
	if drawing a polygon outline. (#332662)
	(gdk_win32_draw_polygon): Corresponding simplification: no need to
	add an extra final copy of the starting point.