syntax_data: {"ast_node_type":"other","tokens":[{"end":91,"kind":"keyword","start":0,"text":"pat.iter_fields().for_each(|field_pat|"}]}
source_snippet:     pat.iter_fields().for_each(|field_pat| collect_special_tys(cx, field_pat, special_tys))
context_before:     }
context_after: }