title: In Swift, Array [String] slicing return type doesn't seem to be [String]
body: <p>I'm slicing an array of strings and setting that to a <code>[String]</code> variable, but the type checker is complaining. Is it a possible compiler bug?</p>
  
  <pre><code>var tags = ["this", "is", "cool"]
  tags[1..&lt;3]
  var someTags: [String] = tags[1..&lt;3]
  </code></pre>
  
  <blockquote>
    <p><a href="https://i.stack.imgur.com/svdwB.png" rel="noreferrer"><img src="https://i.stack.imgur.com/svdwB.png" alt="screenshot"></a></p>
  </blockquote>