definedundefined does not cover typeof checks

Check undefined with `typeof` is a common pattern (as undefined could be overwritten in older browsers) and the angular.isUndefined implementation itself uses it (https://github.com/angular/angular.js/blob/master/src/Angular.js#L478).

Therefore these checks should be disallowed as well.

```
typeof variable == "undefined"
typeof variable !== "undefined"
```
