Convert a property of type literal (label type) to a primitive type. For example ```typescript type X = { name: 'Tom', age: 30, married: false, addr: { home: '123456', phone: '13111111111' } } type Expected = { name: string, age: number, married: boolean, addr: { home: string, phone: string } } type Todo = ToPrimitiveby 前端子鱼 @mwc