syntax_data: {"ast_node_type":"other","tokens":[{"end":51,"kind":"keyword","start":0,"text":"(true,"}]}
source_snippet:                         (true, _) => (None, false),
context_before:                     match (structural_partial_eq, non_blanket_impl) {
context_after:                         (_, Some(def_id)) if def_id.is_local() && !is_derived => {