an>
  <span><a href="../../IBase/Location/index.html#type-t">IBase.Location.t</a> <span class="arrow">&#45;&gt;</span></span>
  <a href="#type-error_desc">error_desc</a></span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-desc_class_cast_exception"><a href="#val-desc_class_cast_exception" class="anchor"></a><code><span><span class="keyword">val</span> desc_class_cast_exception : 
  <span><span><a href="../../IR/Procname/index.html#type-t">IR.Procname.t</a> option</span> 