Fix fatal in DataCollector.php

b6a5a1f17efb06a12be65fce3a708d50928cd7af
introduced a fatal error because the new licenseparser
isn't passed to the data collector in the real code.
The tests passed because this setup is done manually
in the tests.

Change-Id: I244277f877d355ac45b19559a5b63903467c0eb8
Mingle: https://wikimedia.mingle.thoughtworks.com/projects/multimedia/cards/117