title: Delphi - Variants.pas unit is out of date
body: <p>After installing Delphi RAD Studio XE on a new computer (Win 10 Pro), I can't compile existing project:</p>
  
  <blockquote>
    <p>[DCC Fatal Error] Variants.pas(1064): E2158 Variants unit out of date or corrupted: missing '@VarFromInt'.</p>
  </blockquote>
  
  <p>The <code>Variants.pas</code> unit is exactly the same as before.</p>