Invalid output when a computed property follows a property with an arrow function as value

This code:

```
console.log({
Right: () => true,
[1 + 1]: 2
})
```

Produces this output:

```
var obj;
console.log(( obj = {
Right: function () { return true
}; }, obj[1 + 1] = 2, obj ))
```

... which has a semicolon inside an object literal. Probably once again text is inserted in the wrong order (the closing brace of the arrow relative to the semicolon for the return statement).