Commit 1ed8d907b3 inadvertently dropped
emitting the tessellator domain for domain shaders. Although Vulkan
environments allow us to write the tessellator domain from the hull
shader, the domain shader, or both, that's not generally true for OpenGL
environments.
Otherwise ubsan reports errors such as:
libs/vkd3d-shader/spirv.c:7266:5: runtime error: null pointer passed as argument 1, which is declared to never be null
The previous names "not normalised" and "fully normalised" have meanings
which are likely to change with time. OTOH including a description of the
normalisation level in the enumerant seems excessive. Relating
normalisation levels to shader model versions might be a reasonable
compromise.
Most I/O registers are already described by the shader signatures.
The registers that are not do not have any property other then
being used by the program or not, so they can be collectively
described with a bitmap.
The register storage class is now represented in
vkd3d_register_builtins, so the spirv_compiler_emit_io_register()
doesn't need to know it from the caller.
This makes it available to all backends, without requiring an
ad-hoc solution for each of them. It also gets rid of an
undocumented flag we're currently passing to
DCL_CONTROL_POINT_PHASE.
