- Make use of more typehints for function parameters
- Make use of typehints for function return values
- Use @var where needed to give proper hints to IDEs and avoid warnings
- Replace MockObject::setMethods() with addMethods() and onlyMethods()
- Rewording of some phpdocs
In addition to that, the methods askSlotsMap() and buildSlotsMap() of
the redis-cluster connection backend have been renamed respectively
to askSlotMap() and buildSlotMap().