{"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":"self.register_region_outlives_constraint(ty::OutlivesPredicate(r1,"}]}
                self.register_region_outlives_constraint(ty::OutlivesPredicate(r1, r2), cause);
            ty::GenericArgKind::Lifetime(r1) => {
            }