kernel32/tests: On Windows 8 IdnToNameprepUnicode() returns a different error for invalid parameters.

Windows 8 and 8.1 return some different error codes and
GetDllDirectory() handles buffer termination a bit differently.

0x00333333 makes much more sense than 0x00000000, and is what most of my
hardware returns. Apparently at least some GF7 cards (still) return
0x00000000, so also accept that as broken().

Queries can be run out of order because the main thread is waiting on the
response.  The main thread didn't really need a response from QUERY_RESIZE_END.
It was only a query for symmetry with QUERY_RESIZE_START.

The Mac driver was already sending these events when the user resizes the
window by dragging its corner/edges, but there are other occasions when the
window frame changes.  For example, when the user zooms the window.

This seems to eliminate a lot of house-keeping work inside Cocoa.

comctl32: Initialize treeview checkboxes in WM_PAINT when TVS_CHECKBOXES was passed during control creation.