Product Version = NetBeans IDE 8.2 (Build 201609300101)
Operating System = Windows 8.1 version 6.3 running on amd64
Java; VM; Vendor = 1.8.0_101
Runtime = Java HotSpot(TM) 64-Bit Server VM 25.101-b13

Reproducibility: Happens every time

STEPS:
  * Type or copy/paste this code in the Html Editor:
 
     <button id="roundButton"></button>
    

    <script>
      var roundButton = document.querySelector("#roundButton");  
      roundButton.addEventListener("click", showMenu, false);
        
      function showMenu(){
        flyoutMenu.classList(....);
      }
     </script>

ACTUAL:
  "classList" method does not popup in the auto-suggest list.

EXPECTED:
  it should pop up