As of now, is there a way to get the current index of the iterable in a `for..of` directive in Angular 2? In others words, the equivalent of `$index` in Angular.js v1...

Example of code:

```html
<ul *for="#task of allTasks">
    <li>{{ $index}} - {{ task.label }}</li>
</ul>

```

(of course this code does not work, it does not provide the current index)