hg: jdk9/sandbox/hotspot: Merge

[pavel.rappo at oracle.com]

Changeset: 5b21125de93a
Author:    prappo
Date:      2016-09-15 16:56 +0100
URL:       http://hg.openjdk.java.net/jdk9/sandbox/hotspot/rev/5b21125de93a

Merge

- src/share/vm/gc/g1/g1Predictions.cpp
- src/share/vm/gc/shared/memset_with_concurrent_readers.cpp
- src/share/vm/gc/shared/referencePendingListLocker.cpp
- src/share/vm/gc/shared/referencePendingListLocker.hpp
- test/compiler/jvmci/compilerToVM/InitializeConfigurationTest.java
- test/serviceability/sa/jmap-hashcode/Test8028623.java