obj.[[Get]](j) in Array.prototype.sort section lacks the 2nd argument

[mysticatea]

In https://tc39.github.io/ecma262/#sec-array.prototype.sort section, the following sentence exists:

Here the notation old[j] is used to refer to the hypothetical result of calling obj.[[Get]](j) before this function is executed, and the notation new[j] to refer to the hypothetical result of calling obj.[[Get]](j) after this function has been executed.

Now, obj.[[Get]](j) in the sentence doesn't have the 2nd argument receiver, so I guess that this in accessor properties are undefined in sorting. For example:

const impl = Symbol()
class MyArrayLike {
    constructor() {
        this[impl] = [1, 2]
    }

    get 0() { return this[impl][0] } // this `this` is undefined in sorting.
    set 0(value) { this[impl][0] = value }
    get 1() { return this[impl][1] }
    set 1(value) { this[impl][1] = value }
    get length() { return 2 }
}

const xs = new MyArrayLike()
Array.prototype.sort.call(xs)

However, those thiss are not undefined in real world.
I'm suspecting that we should fix those obj.[[Get]](j) to obj.[[Get]](j, obj).

[ljharb]

What about replacing it with Get(obj, j)?

[mysticatea]

Sounds good to me.