super property access should be allowed in computed property names when class is nested in the method of another class

``` ts
class A {
    foo() { return 1; }
}

class B extends A {
    foo() { return 2; }
    bar() {
        console.log(super.foo());
        return class {
            [super.foo()]() {
                return 100;
            }
        }
    }
}

let x = new B().bar();
let y = new x();
console.log(y[1]())
```

This is legal ES6 code and it should not error
