Can't use async arrow function in/before super call

Bug Report

🔎 Search Terms

super async arrow function this

🕗 Version & Regression Information

This only occurs using a target version of ES2016 or lower.

⏯ Playground Link

https://www.typescriptlang.org/play?target=3&ts=4.1.3#code/MYGwhgzhAECC0G8BQ1rAPYDsIBcBOArsDungBQBmmAXNGQJTQC8AfNAAp7oC2AlhAFMAPADd0vACYtGyVKioMA3CmgBfJOqShIMAELQBADxwDMEmPFlosuQsVINEK1BAIAHAeUgBPTMDqMrE5ychjY6CACAHQg6ADmZABEABICILGJ9Mohqlkq6pqYAgDu0LpKQA

💻 Code

This works:

class A {
  constructor(fn: () => Promise<void>) {
    fn();
  }
}

class B extends A {
  constructor() {
    super(async function () {
      console.log("Hello");
    });
  }
}

new B();

This doesn't:

class A {
  constructor(fn: () => Promise<void>) {
    fn();
  }
}

class B extends A {
  constructor() {
    super(async () => {
      console.log("Hello");
    });
  }
}

new B();

The difference between the examples is the use of an arrow function vs a traditional function.

🙁 Actual behavior

It compiles crashes however at runtime with this error message:
ReferenceError: Must call super constructor in derived class before accessing 'this' or returning from derived constructor

The error lies in the generated __awaiter function trying to access this. The traditional function wraps the __awaiter call (therefore binding its own this) not causing it to fail.

🙂 Expected behavior

Print Hello to the console.