Last item of menu with title cannot be hilighted

Seing the fix, it probably also impacts scrolled floating menus.

Change-Id: Ia740573c3ed54cf01a57575a2ca00d49165be28d
Reviewed-on: https://gerrit.libreoffice.org/16188Reviewed-by: Jan Holesovsky <kendy@collabora.com>
Tested-by: Jan Holesovsky <kendy@collabora.com>

vcl/source/window/menufloatingwindow.cxx

@@ -190,7 +190,7 @@ void MenuFloatingWindow::ImplHighlightItem( const MouseEvent& rMEvt, bool bMBDow
     long nY = GetInitialItemY();
     long nMouseY = rMEvt.GetPosPixel().Y();
     Size aOutSz = GetOutputSizePixel();
-    if ( ( nMouseY >= nY ) && ( nMouseY < ( aOutSz.Height() - nY ) ) )
+    if ( ( nMouseY >= nY ) && ( nMouseY < ( aOutSz.Height() + nY ) ) )
     {
         bool bHighlighted = false;
         size_t nCount = pMenu->pItemList->size();