{"ast_node_type":"other","tokens":[{"end":84,"kind":"keyword","start":0,"text":"if"}]}
                if matches!(op, BinaryOp::CmpOp(..) | BinaryOp::Assignment { .. }) {
                let p_left = &sig.params()[0];
                    if let TyKind::Ref(mtbl, lt, _) = p_left.kind(Interner) {