message: Fix compiling in release mode
diff: @@ -716,8 +716,14 @@ pub fn codegen_call_inner<'a, 'tcx: 'a>(
  def: InstanceDef::Virtual(_, idx),
  ..
  }) => {
  + #[cfg(debug_assertions)]
  + {
  let nop_inst = fx.bcx.ins().nop();
  - fx.add_comment(nop_inst, format!("virtual call; self arg pass mode: {:?}", get_pass_mode(fx.tcx, args[0].layout())));
  + fx.add_comment(
  + nop_inst,
  + format!("virtual call; self arg pass mode: {:?}", get_pass_mode(fx.tcx, args[0].layout())),
  + );
  + }
  let (ptr, method) = crate::vtable::get_ptr_and_method_ref(fx, args[0], idx);
  (Some(method), Single(ptr), true)
  }
  @@ -727,8 +733,11 @@ pub fn codegen_call_inner<'a, 'tcx: 'a>(
  // Indirect call
  None => {
  + #[cfg(debug_assertions)]
  + {
  let nop_inst = fx.bcx.ins().nop();
  fx.add_comment(nop_inst, "indirect call");
  + }
  let func = trans_operand(fx, func.expect("indirect call without func Operand"))
  .load_scalar(fx);
  (
  