syntax_data: {"ast_node_type":"other","tokens":[{"end":29,"kind":"keyword","start":0,"text":"ty::tls::with(|tcx|"}]}
source_snippet:         ty::tls::with(|tcx| {
context_before:     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
context_after:             with_no_trimmed_paths!({