Converts Promise results to any

```
class myobject {
	public async compare(other: myobject): Promise<boolean> {
		return true;
	}
}
```

current output:
```
export interface Imyobject {
    compare(other: Imyobject): any;
}
```

expected output:
```
export interface Imyobject {
    compare(other: Imyobject): Promise<boolean>;
}
```