hg: shenandoah/jdk9/hotspot: Merge strict oop operations for new upstream code.

[ashipile at redhat.com]

Changeset: bb8d93a93117
Author:    shade
Date:      2017-04-20 12:47 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk9/hotspot/rev/bb8d93a93117

Merge strict oop operations for new upstream code.

! src/share/vm/classfile/javaClasses.cpp
! src/share/vm/prims/jvmtiTagMap.cpp
! src/share/vm/runtime/jniHandles.hpp
! src/share/vm/services/heapDumper.cpp