Request for Review (#2) : CR#8001634 : Initial set of lambda functional interfaces

[Brian Goetz]

> They won't be truly final until JSR-335 is ratified but they are more fixed than placeholders.
>
> Brian has provided some feedback for Block method name and some suggestions for naming of primitive specialization. I plan make those changes today and send out RFR #3 tomorrow around noon PST.
>
> Feedback is always welcome but it's the EG that needs to be convinced a change is warranted.

And, soon.  We're well over our time box on this review, and it is 
blocking many other things.