{"ast_node_type":"variable","tokens":[{"end":41,"kind":"keyword","start":0,"text":"let"}]}
    let b = i16x4::from([0, -1, -2, -3]);
    let a = i16x4::from([1, 2, 3, 4]);
    let r: i16x4 = transmute(vpadd_s16(transmute(a), transmute(b)));