-- v10: vkd3d-shader/spirv: Introduce a compiler feature flag for int64 capability. tests/shader-runner: Add 64-bit bitwise tests. tests/shader-runner: Add 64-bit arithmetic tests. tests/shader-runner: Introduce a 'float64' requirement directive. tests/shader-runner: Introduce an 'int64' requirement directive. vkd3d-shader/spirv: Emit an error if 64-bit integers are used. vkd3d-shader: Introduce an instruction flag to suppress masking of bitwise shift counts.