RFR: 8179294 several langtools tests depend on jar but do not declare that dependency

[Andrey Nazarov]

Hi,

Please review fix which adds absent module dependencies in Pack200 and Jlink 
tests.

http://cr.openjdk.java.net/~anazarov/JDK-8179294/webrev.00
https://bugs.openjdk.java.net/browse/JDK-8179294 
<https://bugs.openjdk.java.net/browse/JDK-8179294>


—Thanks,
Andrei