{"ast_node_type":"other","tokens":[{"end":100,"kind":"keyword","start":0,"text":"self.inner.borrow_mut().unwrap_region_constraints().opportunistic_resolve_var(self.tcx,"}]}
        self.inner.borrow_mut().unwrap_region_constraints().opportunistic_resolve_var(self.tcx, vid)
    fn opportunistic_resolve_lt_var(&self, vid: ty::RegionVid) -> ty::Region<'tcx> {
    }