title: CGRectZero vs CGRect.zeroRect?
body: <p>Both seem to work the same in Swift. Which should we use?</p>
  
  <ol>
  <li><code>CGRectZero</code> vs <code>CGRect.zeroRect</code></li>
  <li><code>GRectMake(1, 1, 1, 1)</code> vs <code>CGRect(x: 1, y: 1, width: 1, height: 1)</code>
  <code>UIEdgeInsetsMake(1, 1, 1, 1)</code> vs <code>UIEdgeInsets(top: 1, left: 1, bottom: 1, right: 1)</code></li>
  <li>Other patterns</li>
  </ol>