test/langtools/Makefile

[Erik Joelsson]

Hello,

We in the build/infra team would like to unify the langtools 
test/Makefile with the other test Makefiles. Currently all the others 
share a common TestCommon.gmk, but the langtools file was too different 
at the time so we didn't dare touching it.

My question to you is if there are any known parts of that file that 
need to be preserved? The most obvious part would be the JCK support. Is 
that still used and/or needed?

/Erik