void AddLabelRef (CodeLabel* L, struct CodeEntry* E);
/* Let the CodeEntry E reference the label L */
-unsigned RemoveLabelRef (CodeLabel* L, const struct CodeEntry* E);
-/* Remove a reference to this label, return the number of remaining references */
-
void MoveLabelRefs (CodeLabel* OldLabel, CodeLabel* NewLabel);
/* Move all references to OldLabel to point to NewLabel. OldLabel will have no
* more references on return.