I guess the original intention was that ir3_nir_lower_load_constant will
always make progress if nir_opt_large_constants made progress,
but this is not the case with the small constant arrays optimizations.
Reviewed-by: Emma Anholt <emma@anholt.net>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33002>