-- v6: vkd3d-shader/ir: Normalise signatures and input/output registers to the Shader Model 6 pattern. vkd3d-shader/tpf: Validate input and output index ranges for default control point phases. vkd3d-shader/tpf: Remove an unnecessary carriage return from a parser error message. vkd3d-shader/tpf: Validate index range declarations. vkd3d-shader/tpf: Validate input/output registers. vkd3d-shader/tpf: Validate signature element masks. vkd3d-shader/tpf: Validate signature element register indices. vkd3d-shader/tpf: Validate input/output register index counts.