{"ast_node_type":"other","tokens":[{"end":84,"kind":"keyword","start":0,"text":"//"}]}
        // SAFETY: We hold the read lock for the `GlobalCtxt` pointer. That prevents
        let gcx: *const GlobalCtxt<'_> = read_guard.unwrap() as *const _;
        // `GlobalCtxt::enter` from returning as it would first acquire the write lock.