Support SysListView32 groups

[mdcurran]

SysListView?32 controls in Windows Vista, Windows Mail and other new apps allow you to group items in particular ways. These groups end up becoming focusable themselves, and if you press left or right arrow on one of these groups you can expand or collapse the group. However, as far as MSAA is concirned, when you focus a group, focus just moves to the list itself, not the group with in the list. This is because each list item is mapped in order to an MSAA childID, but groups as they are not accounted for in the indexing, don't end up getting childIDs and just become 0. Again like ticket #14, we need a way of finding out what is currently focused (in this case, what group is focused, not necessarily what item).

[aleksey_s]

as i see in changelog it is allready done. isn't it?

[mdcurran]

Fixed before/in r2241.