RFR(m): 8139233u1 add initial compact immutable collection implementations

[Stuart Marks]

On 5/5/16 8:51 PM, Michael Hixson wrote:
> In MapN.entrySet(), is the "int idx" being declared in the wrong
> place?  It looks like it should be a field of the Iterator rather than
> the Set.

Hi Michael,

Well spotted! You're quite correct. I've been doing too much last-minute 
refactoring.

I note that no tests failed because of this bug. I'll rework your test case into 
a regression test and include it in the changeset.

Thanks a lot! This was very helpful.

s'marks