feat: 替换类和对象的计算方法和计算属性

[cesaryuan]

class a {
    ["a"](){}
    ["a"]: 1
}
let obj = {
    ["a"](){},
    ["a"]: 1,
}

to

class a {
  a() {}

  a: 1;
}

let obj = {
  a() {},

  a: 1
};