8.0.0 setup() hook isn't called inside of @Options?

[mattsteve]

If I declare a setup hook inside the options decorator, or inside the class itself, it isn't running. Is this intentional?

import { Options, Vue } from 'vue-class-component';
@Options({
    setup() {
        console.log('setup');
    }
})
export default class MyComponent extends Vue {}

[ruixiaozi]

@mattsteve Ref：Composition functions support and this value changes #416