syntax_data: {"ast_node_type":"other","tokens":[{"end":75,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                 // Emit lints in the order in which they occur in the file.
context_before:                 let mut redundant_subpats = redundant_subpats.clone();
context_after:                 redundant_subpats.sort_unstable_by_key(|(pat, _)| pat.data().span);