generic classfile enabled by default

[Maurizio Cimadamore]

Hi all,
I've just pushed few patches to enable the new generic classfile format 
by default (previously the new classfile format was only generated when 
using the hidden -XDgenericClassFile flag). This is a biggie change, and 
many adaptations (pushed over the last month) were required for the JDK 
to function and specialize classes correctly. Most test frameworks have 
been rewritten in order to work in this new world, and such tests are 
currently all green - meaning that the new translation scheme should 
work reasonably well; one notable case where you can notice missing 
functionality is related to double-slot specialization (i.e. create an 
instance of Box<long>) which is currently unsupported  - this will 
require VM support and will come at a later stage.

Should you find any issue in making your existing examples work in this 
new world, please do not hesitate to let me know on this very list.

Cheers
Maurizio