[PATCH 5] winmm/tests: Add MCI waveaudio tests.

[Joerg-Cyril.Hoehle]

Paul Virnes wrote:
>> What I'm missing is sort of the converse of skip:
>> Perform a test on all platforms *except* Wine
>Isn't there anything in your current test suite that succeeds on Windows
>but fails on Wine?
This is it!
So simple, right in front of my eyes.
Thanks,
  Jörg Höhle.