Creating a list of features that are a part of ES 2021 so it's easier to know which tests to add. [String.prototype.replaceAll](https://github.com/tc39/proposal-string-replaceall) [Promise.any](https://github.com/tc39/proposal-promise-any) [Logical Assignment Operators](https://github.com/tc39/proposal-logical-assignment) [Array.at, String.at, TypedArray.at](https://github.com/tc39/proposal-relative-indexing-method)
Creating a list of features that are a part of ES 2021 so it's easier to know which tests to add.
String.prototype.replaceAll
Promise.any
Logical Assignment Operators
Array.at, String.at, TypedArray.at