{"ast_node_type":"variable","tokens":[{"end":61,"kind":"keyword","start":0,"text":"if"}]}
        if let Some(index) = stack.find(TYPECK_ITEM_BODIES) {
        const TYPECK_ITEM_BODIES: &str = "rustc_typeck::check::typeck_item_bodies";
            stack = &stack[..index + TYPECK_ITEM_BODIES.len()];