Go to route in go to releated files does not work with controller as service

go to related files does not find route definition when defined like this i routing/core.yml:

``` yaml
login:
  path: /
  defaults: { _controller: kaustik.login.controller:indexAction }
```

getRoutesOnControllerAction() in RouteHelper.java should have a section about services maybe? My java knowledge is to low to make a pull request.
