nir/print: Don't use comment syntax for deref_cast properties

Follow the same syntax as the intrinsic indices, since they
are conceptually similar.

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23564>

src/compiler/nir/nir_print.c

@@ -1056,7 +1056,7 @@ print_deref_instr(nir_deref_instr *instr, print_state *state)
    }
 
    if (instr->deref_type == nir_deref_type_cast) {
-      fprintf(fp, " /* ptr_stride=%u, align_mul=%u, align_offset=%u */",
+      fprintf(fp, "  (ptr_stride=%u, align_mul=%u, align_offset=%u)",
               instr->cast.ptr_stride,
               instr->cast.align_mul, instr->cast.align_offset);
    }