{"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"//"}]}
        // since in such crates `lookup_const_stability` will always be `None`.
        // We can skip this if neither `staged_api` nor `-Zforce-unstable-if-unmarked` are enabled,
        self.const_kind == Some(hir::ConstContext::ConstFn)