RFR: JDK-8243000: javac only build fails after removal of Nashorn

[Jan Lahoda]

Hi,

The langtools-only ant build is broken after the Nashorn removal, due to 
the use of scriptmapper. I tried to resolve that using regexpmapper here:
http://cr.openjdk.java.net/~jlahoda/8243000/webrev.00/

I did some tests, and it seemed to work reasonably for me - but more 
testing (especially by folks using Idea) would be welcome.

JBS: https://bugs.openjdk.java.net/browse/JDK-8243000

Thanks,
     Jan