BORING
-- v3: vkd3d-shader/hlsl: Return an hlsl_ir_node pointer from hlsl_new_constant(). vkd3d-shader/hlsl: Pass a hlsl_constant_value pointer to hlsl_new_constant(). vkd3d-shader/hlsl: Pass hlsl_constant_value and hlsl_type pointers to fold_bit_or(). vkd3d-shader/hlsl: Pass hlsl_constant_value and hlsl_type pointers to fold_bit_and(). vkd3d-shader/hlsl: Pass hlsl_constant_value and hlsl_type pointers to fold_bit_xor(). vkd3d-shader/hlsl: Only read used coordinates in encode_texel_offset_as_aoffimmi(). vkd3d-shader/hlsl: Use the writemask to map the coords swizzle for load instructions.