hg: graal/graal-jvmci-8: 3 new changesets

[doug.simon at oracle.com]

Changeset: 77d72f719a59
Author:    Tom Rodriguez <tom.rodriguez at oracle.com>
Date:      2015-11-05 15:17 -0800
URL:       http://hg.openjdk.java.net/graal/graal-jvmci-8/rev/77d72f719a59

Sync G1 write_ref_nmethod_post/pre change from JDK9

! src/share/vm/gc_implementation/g1/g1SATBCardTableModRefBS.cpp

Changeset: 2d21c13d7829
Author:    Tom Rodriguez <tom.rodriguez at oracle.com>
Date:      2015-11-05 15:18 -0800
URL:       http://hg.openjdk.java.net/graal/graal-jvmci-8/rev/2d21c13d7829

Add logic to verify HeapRegionRemSet when running G1

! src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
! src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp
! src/share/vm/gc_implementation/g1/heapRegionRemSet.hpp

Changeset: eada427470a3
Author:    Tom Rodriguez <tom.rodriguez at oracle.com>
Date:      2015-11-05 15:21 -0800
URL:       http://hg.openjdk.java.net/graal/graal-jvmci-8/rev/eada427470a3

Use proper GC barriers when clearing _jvmci_installed_code

! src/share/vm/code/nmethod.cpp
! src/share/vm/code/nmethod.hpp