{"ast_node_type":"variable","tokens":[{"end":58,"kind":"keyword","start":0,"text":"let"}]}
    let usize_di_node = type_di_node(cx, tcx.types.usize);
    let void_pointer_type_di_node = type_di_node(cx, void_pointer_ty);
    let pointer_layout = cx.layout_of(void_pointer_ty);