[PATCH 0/4] MR422: spirv: Use some attributes from the shader signature instead of the DCL instruction.

[Zebediah Figura (＠zfigura)]

Preparatory work so that we can declare I/O variables by iterating over
signature elements, instead of by parsing DCL instructions.

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https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/422