glsl_to_tgsi: merge buffer and sampler fields in glsl_to_tgsi_instruction

sizeof(glsl_to_tgsi_instruction): 416 -> 384

Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
1 file changed