{"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":"hir::ConstContext::ConstFn"}]}
            hir::ConstContext::ConstFn => ty::BoundConstness::Maybe,
        let host_polarity = match self.const_kind() {
            hir::ConstContext::Static(_) | hir::ConstContext::Const { .. } => {