syntax_data: {"ast_node_type":"variable","tokens":[{"end":43,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:         let literal = tcx.lift(c).unwrap();
context_before:     ty::tls::with(|tcx| {
context_after:         let mut p = FmtPrinter::new(tcx, Namespace::ValueNS);