{"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":"///"}]}
    /// and its children, e.g. closures, inline consts.
    /// Borrow-checks the given typeck root, e.g. functions, const/static items,
    query mir_borrowck(key: LocalDefId) -> Result<&'tcx mir::ConcreteOpaqueTypes<'tcx>, ErrorGuaranteed> {