{"ast_node_type":"other","tokens":[{"end":21,"kind":"keyword","start":0,"text":"expr.kind"}]}
            expr.kind
        if let hir::ExprKind::MethodCall(hir::PathSegment { ident: method, .. }, recv_expr, &[], _) =
            && let Some(recv_ty) = self.typeck_results.borrow().expr_ty_opt(recv_expr)