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

[Brian Goetz]

> I've updated the webrev for the first set of lambda functional interfaces (JSR-335) with the feedback from the first review round. The updated webrev is:
>
> http://cr.openjdk.java.net/~mduigou/8001634/3/webrev/
>
> This update includes:
>
> - Mapper.map becomes Function.apply
> - Factory.make becomes Supplier.get
> - Specializations of Supplier for int, long, double
> - Reorder type variables to put result last
> - Fixes many javadoc and stylistic comments.
>
> What didn't change:
> - Block was not renamed to Action or Procedure. The name Block.apply currently conflicts with Function.apply and should be renamed. Block.accept? Block.perform?

Block.accept.

Also, to allow IntFunction<T> to implement Function<T,Integer>, need to 
adjust the method names.  Propose

   applyAs{Int,Long,Double}

for specializations.

Similarly, need to do the same for Supplier:

   getAs{Int,Long,Double}

with appropriate defaults for the specialized versions.