title: Binary operator '===' cannot be applied to operands of type 'Any?' and 'UIBarButtonItem!'
body: <p>The following code used to be able to compile in swift 2.2, no longer in swift 3.0. How do we fix this? </p>
  
  <blockquote>
    <p>Error: Binary operator '===' cannot be applied to operands of type 'Any?' and 'UIBarButtonItem!'</p>
  </blockquote>
  
  <pre><code>override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
      if sender === saveButton { // Error!
          // ... 
      } else if sender === closeButton { // Error!
          // ...
      }
  }
  </code></pre>