8153370: Drop use of old style -XaddExports from tests

[Alan Bateman]

We still have support in both javac and in the runtime for the old form 
of -XaddExports and -XaddReads.

A first step to removing support for the old form is to update the tests 
that are still using the old form. The webrev with the changes that I'd 
like to push to jdk9/dev is here:

   http://cr.openjdk.java.net/~alanb/8153370/

These changes are already in jake and also a few updates to tests to run 
with `-addmods ALL-SYTSTEM` too.

Thanks,

Alan