message: Print pass mode for locals in clif
diff: @@ -334,6 +334,12 @@ enum ArgKind {
  fx.top_nop = Some(fx.bcx.ins().nop());
  fx.add_global_comment(format!("ssa {:?}", ssa_analyzed));
  + for local in fx.mir.args_iter() {
  + let arg_ty = fx.monomorphize(&fx.mir.local_decls[local].ty);
  + let pass_mode = get_pass_mode(fx.tcx, fx.self_sig().abi, arg_ty, false);
  + fx.add_global_comment(format!("pass {:?}: {:?} {:?}", local, arg_ty, pass_mode));
  + }
  +
  match output_pass_mode {
  PassMode::NoPass => {
  let null = fx.bcx.ins().iconst(fx.module.pointer_type(), 0);
  