{"ast_node_type":"other","tokens":[{"end":40,"kind":"keyword","start":0,"text":"///"}]}
    /// for small values of `i` and `v`.
    /// `ReBound(DebruijnIndex(i), BoundRegion { var: v, kind: BoundRegionKind::Anon })`
    pub anon_re_bounds: Vec<Vec<Region<'tcx>>>,