text:   {
      var __result1 = "1" << null !== 1;
      var __expect1 = false;
    }
    {
      var __result2 = null << "1" !== 0;
      var __expect2 = false;
    }
    {
      var __result3 = new String("1") << null !== 1;
      var __expect3 = false;
    }
    {
      var __result4 = null << new String("1") !== 0;
      var __expect4 = false;
    }
    