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 into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> rustc_errors::DiagArgValue {
context_after:             let pred = tcx.short_string(self, path);