RFR: 8159334: ModuleDescriptor retains overlapping sets for all and concealed packages

[Mandy Chung]

> On Jun 13, 2016, at 4:38 AM, Claes Redestad <claes.redestad at oracle.com> wrote:
> 
> Hi,
> 
> afraid I found some subtle bugs with some tests I forgot to check earlier:
> 
> http://cr.openjdk.java.net/~redestad/8159334/webrev.02/

This looks fine.  It’d be good if you verify with -testset core to get a good coverage.

Mandy