[2/2] wined3d: Take abs() of vertex z coordinate as FFP fog coordinate (try 4)

[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=10078

Your paranoid android.


=== w8 (32 bit visual) ===
visual.c:880: Test failed: CreateVertexShader failed (0x8876086c)
visual.c:882: Test failed: CreateVertexShader failed (0x8876086c)