{"ast_node_type":"other","tokens":[{"end":89,"kind":"keyword","start":0,"text":"self.delegate.borrow_mut().borrow(place,"}]}
                        self.delegate.borrow_mut().borrow(place, discr_place.hir_id, bk);
                        let bk = ty::BorrowKind::from_mutbl(mutability);
                    }