anv,turnip,radv,clover,glspirv: Run nir_copy_prop before nir_opt_deref

We're about to make the SPIR-V -> NIR path generate a bit more complex
SSA chains for certain derefs.  This will ensure we don't regress anyone
when we start making vec2's of derefs.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5278>
5 files changed