Bad formatting adding `super()` to empty constructor

**TypeScript Version:**  2.7.0-dev.20171115

**Code**

```ts
class C extends Object {
    constructor() {}
}
```

Use the quickfix.

**Expected behavior:**

```ts
class C extends Object {
    constructor() {
        super();
    }
}
```

**Actual behavior:**

```ts
class C extends Object {
    constructor() {super();
}
}
```