hg: valhalla/valhalla/langtools: Add some functional juice to javac code

[John Rose]

On Aug 12, 2014, at 11:10 AM, Remi Forax <forax at univ-mlv.fr> wrote:

>> not a general purpose one, right?
>> ...
> 
> javac code source should be hackable easily

Also, programmers sometimes look to JDK code as an example of how things ought to be done in Java.  For good or for ill.

Personally, I have found reading the javac sources educational.

— John