Wrong super keyword async scope resolution

[gabrielbiga]

Fix runtime error when calling the super methods class within nested async functions.

Fixes #30066

A simpler way to reproduce it:

class A {
    x() {
    }
}

class B extends A {
    // inner async super call
    async inner() {
        (async () => {
            super["x"]();
        })();
    }
}

new B().inner();

This patch already fixes the bug when you're calling directly a method inside an inner async function and the compiler does not generate the _super variable.

class A {
    x() {
    }
}

class B extends A {
    // inner async super call
    async inner() {
        (async () => {
            super.x();
        })();
    }
}

new B().inner();

[msftclas]

All CLA requirements met.

[mmilbrath]

Any guess of when this may be integrated?

[rbuckton]

My apologies for not seeing this prior to merging #30497, which also fixed this issue. I am closing this PR as the issue has already been resolved.