{"ast_node_type":"variable","tokens":[{"end":45,"kind":"keyword","start":0,"text":"//"}]}
    // let mut _x: &mut CorLayout = &*_1.0.0;
    // into `(_1: Pin<&mut ProxyLayout>, _2: &mut Context<'_>) -> Poll<()>`
    // Replace old _1.0 accesses into _x accesses;