hg: shenandoah/jdk: 3 new changesets

[shade at redhat.com]

Changeset: 9309e3678710
Author:    shade
Date:      2018-09-05 10:20 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk/rev/9309e3678710

Unreachable assert in ShenandoahCodeRoots::acquire_lock

! src/hotspot/share/gc/shenandoah/shenandoahCodeRoots.hpp

Changeset: ae9c37b7a718
Author:    shade
Date:      2018-09-05 10:20 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk/rev/ae9c37b7a718

Prune undefined and unused methods

! src/hotspot/share/gc/shenandoah/c1/shenandoahBarrierSetC1.hpp
! src/hotspot/share/gc/shenandoah/shenandoahHeapRegion.hpp

Changeset: 96c558dcd234
Author:    shade
Date:      2018-09-05 10:46 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk/rev/96c558dcd234

Fix builds on unsupported platforms after C2 changes

! src/hotspot/share/opto/cfgnode.cpp