TypeScript: Mixin classes

This PR expands upon #13604 to add support for mixin classes and constructors. The PR includes type system support for the ECMAScript 2015 mixin class pattern described here and here as well as rul…

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TypeScript 4.7 Beta

Today we are excited to announce the beta release of TypeScript 4.7! To get started using the beta, you can use npm with the following command: npm install typescript@beta You can also get editor support by Downloading for Visual Studio 2022/2019 Followi... (more…)

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