Provide suggestName to Queue(and other Chisel Library Moduels)

[sequencer]

Provide suggestName to Queue(and other Chisel Library Moduels)

[jackkoenig]

It seems to name the instance okay if you assign the result of the Queue.apply call to a val, eg:

  val q = Queue(in, 4)

Gives

inst q_q of Queue4_UInt8

(Scastie: https://scastie.scala-lang.org/kJHzJhOWT7WsHGFIxNkd7g)

But if you immediately connect the output to a view, it prefixes based on the name of the view and you end up with that nasty name...

  val in = IO(Flipped(Decoupled(UInt(8.W))))
  val out = IO(Decoupled(UInt(8.W)))
  val viewOfOut = out.viewAs

  viewOfOut :<>= Queue(in, 4)

Gives

inst view__q of Queue4_UInt8

(Scastie: https://scastie.scala-lang.org/xINQireDTK23N2QYIpuYjA)

So there are potentially 2 issues here:

1. Improve naming when views are used as prefixes
2. Make it possible to influence the _q suffix for Queue instances, perhaps we could expose a String argument that defaults to "q".