[PATCH v2 0/3] MR769: vkd3d-shader/hlsl: Support refract() intrinsic.

[Giovanni Mascellani (＠giomasce)]

Based on !333.

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  v2: vkd3d-shader/hlsl: Support refract() intrinsic.
      vkd3d-shader/hlsl: Test refract() intrinsic.
      vkd3d-shader/hlsl: Emit half results when operating on half arguments.
 
https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/769