title: Swift 3: Expression type [UIImage] is ambiguous without more context
body: <p>I try to create new array of UIImage objects:</p>
  
  <pre><code>var images = [UIImage](repeating: nil, count: 10)
  for i in 0..&lt;10
      {
          images[i] = ...
      }
  </code></pre>
  
  <p>But I got this error (at first row):
  <strong>Expression type [UIImage] is ambiguous without more context</strong></p>