[PATCH 4/4] d3d8/tests: Use create_device in test_swvp_buffer.

[Marvin]

Hi,

While running your changed tests on Windows, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?
Full results can be found at
https://testbot.winehq.org/JobDetails.pl?Key=9690

Your paranoid android.


=== w8 (32 bit device) ===
device.c:2437: Test failed: Expected foreground window 000301B8, got 0002004C.
device.c:3141: Test failed: Expected wndproc 0x412ae0, got 0x412ae0.