{"ast_node_type":"variable","tokens":[{"end":74,"kind":"keyword","start":0,"text":"if"}]}
            if let hir::ExprKind::MethodCall(_, rcvr, _, span) = expr.kind
        for expr in expr_finder.clones {
                && let Some(rcvr_ty) = typeck_results.node_type_opt(rcvr.hir_id)