hg: jdk10/hs/hotspot: 8185273: Test8004741.java crashes with SIGSEGV in JDK10-hs nightly

[daniel.daugherty at oracle.com]

Changeset: 2b40c29676e0
Author:    dcubed
Date:      2017-07-31 12:37 -0700
URL:       http://hg.openjdk.java.net/jdk10/hs/hotspot/rev/2b40c29676e0

8185273: Test8004741.java crashes with SIGSEGV in JDK10-hs nightly
Summary: Threads::parallel_java_threads_do() needs to call VMThread::claim_oops_do() to avoid causing a parallel GC to miss the VMThread.
Reviewed-by: shade, rkennke, kvn, gthornbr

! src/share/vm/logging/logTag.hpp
! src/share/vm/runtime/synchronizer.cpp
! src/share/vm/runtime/thread.cpp
! src/share/vm/runtime/vmThread.cpp