ClusterKey(PRInt32 aContainerVariable, const Value& aContainerValue, PRInt32 aMemberVariable, const Value& aMemberValue) : mContainerVariable(aContainerVariable), mContainerValue(aContainerValue), mMemberVariable(aMemberVariable), mMemberValue(aMemberValue) {
ClusterKey(const ClusterKey& aKey) : mContainerVariable(aKey.mContainerVariable), mContainerValue(aKey.mContainerValue), mMemberVariable(aKey.mMemberVariable), mMemberValue(aKey.mMemberValue) {
    ClusterKey(PRInt32 aContainerVariable,               const Value& aContainerValue,               PRInt32 aMemberVariable,               const Value& aMemberValue)        : mContainerVariable(aContainerVariable),          mContainerValue(aContainerValue),          mMemberVariable(aMemberVariable),          mMemberValue(aMemberValue) {        MOZ_COUNT_CTOR(ClusterKey); }