var x = {
  get a() {},

  set a(x) {},

  get ["a"]() {},

  set ["a"](x) {},

  ["a"]: 3,
  b: 4,

  get ["b"]() {},

  set ["b"](x) {},

  get c() {},

  ["c"]: 5,

  set ["c"](x) {},

  set d(x) {},

  ["d"]: 6,

  get ["d"]() {}

};