st/mesa: update inst->info along with inst->op

Otherwise we still have TGSI_OPCODE_CMP's info, which causes a number of
later logic to go wrong. This fixes

dEQP-GLES2.functional.shaders.functions.control_flow.return_in_if_vertex

on nv30.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
1 file changed