Function unreliable

deps/v8/test/mjsunit/optimized-map.js:554–556

(a, b)

  %NeverOptimizeFunction(side_effect);

  function unreliable(a, b) {
    return a.map(x => x * 2, side_effect(a, b));
  }

  let a = [1, 2, 3];
  %PrepareFunctionForOptimization(unreliable);