Perhaps the answer is simply "no", but is there any chance the HLSL compiler is already (or soon...) able to compile these and we could use something like hlsl_d3d12.c's "compile_shader" for these?
We need to handle array semantics (148, which I've signed off on and is hopefully just waiting for Gio's sign-off) and then relative addressing (which isn't done but looks pretty easy). I'm of the opinion it shouldn't block this patch, though.
FWIW, given the simplicity of the test it should even be possible to port it to a shader_test file :-)