[PATCH vkd3d 6/6] vkd3d-shader: Implement hlsl_note().

[Matteo Bruni]

Signed-off-by: Matteo Bruni <mbruni at codeweavers.com>
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The patch is fine. While testing this I realized that we currently use
preprocessed source locations, which aren't necessarily correct for
the original source. Clearly it isn't a big deal or even worth fixing
necessarily, but I wonder how that is usually handled by other
compilers. Do their preprocessors keep location info for each
preprocessed token?