Block records are not processed; only the bitcode is validated.
-- v7: vkd3d-shader/dxil: Read and validate global abbreviated operands. vkd3d-shader/dxil: Read and validate local abbreviated operands. vkd3d-compiler: Introduce a dxil-asm target type. vkd3d-compiler: Introduce a dxbc-dxil source type. vkd3d-shader/dxil: Read and validate DXIL bitcode unabbreviated blocks.