RDFContainerInstanceTestNode::Retract(nsIRDFResource* aSource, nsIRDFResource* aProperty, nsIRDFNode* aTarget, MatchSet& aFirings, MatchSet& aRetractions) const
RDFPropertyTestNode::Retract(nsIRDFResource* aSource, nsIRDFResource* aProperty, nsIRDFNode* aTarget, MatchSet& aFirings, MatchSet& aRetractions) const
RDFContainerInstanceTestNode::Retract(nsIRDFResource* aSource,                                      nsIRDFResource* aProperty,                                      nsIRDFNode* aTarget,                                      MatchSet& aFirings,                                      MatchSet& aRetractions) const{    // XXXwaterson oof. complicated. figure this out.    if (0) {        mConflictSet.Remove(Element(aSource, mContainer, mEmpty), aFirings, aRetractions);    }}