{"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"tls::enter_context(&tls::ImplicitCtxt::new(gcx),"}]}
                        tls::enter_context(&tls::ImplicitCtxt::new(gcx), || {
                    current_gcx2.access(|gcx| {
                            tls::with(|tcx| {