Change in formatting for anonymous generators

Format the code:

```ts
const a = {
	b: function* () { }
}

function* bar() { } 
```

## Expected
Using stable TS, the formatting keeps the space after the `*` in `b: function* () {}`

## Actual
Current tsgo removes the space:

```ts
const a = {
	b: function*() { }
}

function* bar() { } 
```

This makes it harder to use a mix of stable and tsgo in a codebase