Reproduction steps:
1. Make an empty project
2. In ProjectSettings -> Player make sure the Gfx API is D3D12
3. Add the attached shaders Native16Bit.shader and Native16Bit.compute to the project
4. Select them one at a time and click "Compile and show code" in their inspector window (make sure the target is D3D for the .shader file)
5. Enable

Expected result: the shaders compile successfully, displaying the generated DXIl bytecode disassembly

Actual result: the shaders fail to compile with errors containing "use of undeclared identifier 'float16_t4'" or similar messages