title: Shortest way to create a List<T> of a repeated element
body: <p>With the String class, you can do:</p>
  
  <pre><code>string text = new string('x', 5);
  //text is "xxxxx"
  </code></pre>
  
  <p>What's the shortest way to create a List&lt; T > that is full of <code>n</code> elements which are all the same reference?</p>