### What problem does this feature solve? Allow the usage of arrow functions in copmuted setters From #7688 ```js computed: { value: { get: vm => vm.someValue, set: (val, vm) => vm.someValue = val } } ``` ### What does the proposed API look like? ```js computed: { value: { get: vm => vm.someValue, set (val, vm) { this === vm // true } } } ``` <!-- generated by vue-issues. DO NOT REMOVE -->