{"ast_node_type":"other","tokens":[{"end":51,"kind":"keyword","start":0,"text":"$crate::__rust_force_expr!(<[_]>::into_vec("}]}
        $crate::__rust_force_expr!(<[_]>::into_vec(
    ($($x:expr),+ $(,)?) => (
            // This rustc_box is not required, but it produces a dramatic improvement in compile