Bug 983766 - [B2G][Dialer] Suggested phone numbers dont appear for Faceb...

...ook contacts that have edited phone numbers
I though so but this didn't work fine (I noticed that in the unit tests)
```js
function myFunc(a) {
  a = {b:1};
}

var array = [{b:2}];
myFunc(array[0]);
array[0] -> {b:2}
```