`for await` is not supported to be transformed

As title.

```ts
// source code
const main = async () => {
  for await (const i of [1, 2, 3]) {
    console.log(i);
  }
};

// compiled code
const main = () => new Promise(function ($return, $error) {
  for await (const i of [1, 2, 3]) {
    console.log(i);
  }
};
```

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Is this project dead?