RFR: 8152845: Improve PackageEntry and ModuleEntry print methods for future logging

[Lois Foltan]

Looks good Rachel!
Lois

On 4/12/2016 10:39 AM, Rachel Protacio wrote:
> Hello,
>
> Please review this fix, moving the jigsaw PackageEntry and ModuleEntry 
> print methods to product mode and making them able to take an 
> outputStream. This way, we can use them for Unified Logging in the 
> future.
>
> Note: I changed the signature to take an optional stream rather than 
> following the "print_on" scheme because the print_on function that 
> these classes inherit is declared as 'const', which is incompatible 
> with the non-const function calls within the print function.
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8152845
> Open webrev: http://cr.openjdk.java.net/~rprotacio/8152845.00/
>
> Tested with JPRT and RBT quick and non-colo tests.
>
> Thanks,
> Rachel