InsertFrames(nsPresContext* aPresContext, nsIPresShell&   aPresShell, nsIAtom*        aListName,
InsertFrames(nsIAtom*        aListName,
  InsertFrames(nsPresContext* aPresContext,               nsIPresShell&   aPresShell,               nsIAtom*        aListName,               nsIFrame*       aPrevFrame,               nsIFrame*       aFrameList)  {    NS_NOTREACHED("unsupported operation");    return NS_ERROR_NOT_IMPLEMENTED;  }