Goes atop MRs 409 and 436. The last three commits belong to this MR.
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v2: vkd3d-shader/dxil: Implement the DXIL CMP2 instruction.
vkd3d-shader/spirv: Support orderedness inversion in comparison instructions.
https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/441