lambda prototype - second milestone

[Maurizio Cimadamore]

Dear lambdians,
As you might have noticed, there's a new compiler in town ;-)
There are a lot of improvements, especially around the type-system, 
type-inference part, where Dan has been doing an outstanding job at 
clearing out the issues one by one. This prototype is by no means 
complete, there are a lot of rough edges here and there - please be 
patient, especially in this early stage, and keep the bug reports 
flowing as usual. I will try to get to them as quickly as possible. Your 
feedback has proven to be very valuable to us - please continue to help 
us make Java a better language.

Maurizio