user32/tests: Add some tests for dialog owner disabled state. (v3)

[Alexandre Julliard]

Dmitry Timoshkov <dmitry at baikal.ru> writes:

> Regarding any possible additional tests or moving some logic around:
> as the patch subject says these tests don't pretend to be perfect or
> exhaustive set of tests, they simply test some things I was interested
> in, and as always with every test there are things that could be added
> or changed.

Of course, but could you please fix the few things that Jacek mentioned,
and update the todos that succeed now?  Thanks.

-- 
Alexandre Julliard
julliard at winehq.org