* Use isRegistered() from the more narrow UserIdentity interface.
* More specific type hints.
* Remove comments that literally repeat the code.
Change-Id: Icd0eaf8236be41b258efcf81d581540d2448e9e3
The main goal here is to reduce complexity. For example, the method to
remove a parameter from the current URL is never used with another
parameter. The complexity is not needed.
This is inspired by the changes I have seen in Icaf086f.
Change-Id: If22c25e84f50ac380320cd581690835ddb70f01d
That second class (which is generated by the LanguageNameIndexer script)
is an integral part of the class under test.
Change-Id: I7d8dc66b4d1e86684e0de3e585d9e0a544640159
thiemowmdeandjenkins-bot
