syntax_data: {"ast_node_type":"variable","tokens":[{"end":64,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:             let mut p = FmtPrinter::new(tcx, Namespace::TypeNS);
context_before:         ty::tls::with(|tcx| {
context_after:             tcx.lift(*t).expect("could not lift for printing").print(&mut p)?;