title: Convert any QVariant to QString
body: <p>I am aware of how to convert a <code>QVariant</code> containing a <code>QString</code> to a <code>QString</code>:
  <a href="https://stackoverflow.com/questions/7228826/how-can-i-convert-qvariant-to-qstring-and-vice-versa-in-qt">How can I convert QVariant to QString and vice versa in Qt?</a></p>
  
  <p>What I want to ask is how do I convert ANY <code>QVariant</code> into a <code>QString</code>? i.e. even if my <code>QVariant</code> object has an <code>int</code>, is there an easy way to convert it to <code>QString</code>?</p>