[8u20] Request for approval for CR 8028430 - JDI: ReferenceType.visibleMethods() return wrong visible methods

[Jaroslav Bachorik]

Please, approve this straight backport to JDK8u20.

Issue: https://bugs.openjdk.java.net/browse/JDK-8028430
JDK 9 Changeset: http://hg.openjdk.java.net/jdk9/jdk9/jdk/rev/60ed49f7d7fe

The changeset applies cleanly without any additional changes necessary. 
Backporting this fix will make backporting of JDK-8042123 much easier.

Thanks,

-JB-