hg: code-tools/jtreg: update and enable ModuleExports test

[jonathan.gibbons at oracle.com]

Changeset: 392c3247ef42
Author:    jjg
Date:      2016-08-26 09:55 -0700
URL:       http://hg.openjdk.java.net/code-tools/jtreg/rev/392c3247ef42

update and enable ModuleExports test

! make/tests/ModuleExportsTest.gmk
! src/share/test/javatest/regtest/data/moduleExports/ExportsDynamicPrivate.java
! src/share/test/javatest/regtest/data/moduleExports/ExportsPrivate.java