hg: graal/graal-jvmci-9/hotspot: Fix assertion failures with G1 barrier logic and guard InstalledCode updates

[tom.rodriguez at oracle.com]

Changeset: 37937070c882
Author:    Tom Rodriguez <tom.rodriguez at oracle.com>
Date:      2015-11-12 17:17 -0800
URL:       http://hg.openjdk.java.net/graal/graal-jvmci-9/hotspot/rev/37937070c882

Fix assertion failures with G1 barrier logic and guard InstalledCode updates

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