DECORATION_REF_HEAD   57 log-tree.c     		return DECORATION_REF_HEAD;
DECORATION_REF_HEAD  128 log-tree.c     		type = DECORATION_REF_HEAD;
DECORATION_REF_HEAD  193 log-tree.c     		if (list->type == DECORATION_REF_HEAD) {
DECORATION_REF_HEAD  266 log-tree.c     			    decoration->type == DECORATION_REF_HEAD) {