     override func customMirror() -> Mirror {
       return Mirror(
         self, children: [ "bee": b ],
-        ancestorRepresentation: .Customized(
-          // FIXME: should be "super.customMirror", but for <rdar://20598526>.
-          {super.customMirror()} 
-        ))
+        ancestorRepresentation: .Customized(super.customMirror)
+        )
     }
   }
 

    override func customMirror() -> Mirror {
      return Mirror(
        self, children: [ "bee": b ],
        ancestorRepresentation: .Customized(
          // FIXME: should be "super.customMirror", but for <rdar://20598526>.
          {super.customMirror()} 
        ))
    }
  }


    override func customMirror() -> Mirror {
      return Mirror(
        self, children: [ "bee": b ],
        ancestorRepresentation: .Customized(super.customMirror))
    }
  }

