mshtml/tests: Fix events test when pointer is on a corner.

[Jacek Caban]

Hi Nicolas,

Nicolas Le Cam wrote:
> Hi,
>
> Since commit 8272ecd3f2235b923f2ec67bb51d051bdfbf466f I'm having
> errors on events tests.
>
> I just found that it only fails if pointer is on any corner. As I'm
> always putting it on upper right corner when running winetest it was
> always failing for me.
>
> Minimizing the test window fixed it for me.
> Tested on Win2k SP4 and WinXP SP2 (both with IE6).
>   

Minimizing window changes what we test and will break test interactive 
mode. We should change tests to accept cursor in left corner.


Thanks,
    Jacek