SetNext
void SetNext(Node* node) { fNext = node; }
void SetNext(Inode *inode) { fNext = inode; }
BCatalogData::SetNext(BCatalogData* next)
void SetNext(FreeChunk* next) { fNext = next; }
TCPPacket::SetNext(TCPPacket* packet)
UDPPacket::SetNext(UDPPacket *next)