cvtToClosureLbl (IdLabel n c InfoTable) = IdLabel n c Closure
cvtToClosureLbl (IdLabel n c Entry) = IdLabel n c Closure
cvtToClosureLbl (IdLabel n c ConEntry) = IdLabel n c Closure
cvtToClosureLbl (IdLabel n c InfoTable) = IdLabel n c Closure
cvtToClosureLbl (IdLabel n c Entry) = IdLabel n c Closure
cvtToClosureLbl (IdLabel n c ConEntry) = IdLabel n c Closure