Expose queue name of QueueInterface implenetation for outer usage

I faced problem during the process of creation of custom modules related to queues, that it's impossible to get the name of QueueInterface implementations.
It's a bit weird because Queue factory depends from name (see docs).

From design point of view, $name is not a detail of inner implementation (like in DatabaseQueue), it's identifier or subtype of instance.

Actually i see 3 options:

1. Add constuctor with name argument to QueueInterface (i'm realize it's pretty dangerous for existed implementatios)
2. Add getter method to QueueInterface (still dangerous)
3. Make the $name property public and force 'client' classes to be responsible to check if it's available for certain QueueInterface implementation (most safe way)

I think it's great option to expose $name to make possible comprehesive managing of Queue objects, like in QueueUI → project.