text: let n = global.__abstract ? __abstract("number", "2") : 2;
  let i = 0;
  let ob = { j: 1 };
  do {
    i++;
    if (i == 1) delete ob.j; else ob.j = undefined;
  } while (i < n);
  let k = ob.j;
  
  inspect = function() { return k + " " + JSON.stringify(Reflect.ownKeys(ob)); }
  