hg: jdk9/hs-gc/hotspot: 8059466: Force young GC to initiate marking cycle when stat update is requested

[stefan.johansson at oracle.com]

Changeset: d8b17079b783
Author:    sjohanss
Date:      2014-10-06 10:11 +0200
URL:       http://hg.openjdk.java.net/jdk9/hs-gc/hotspot/rev/d8b17079b783

8059466: Force young GC to initiate marking cycle when stat update is requested
Summary: Enable yc to be forced for stat update.
Reviewed-by: mgerdin, jcoomes

! src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
! src/share/vm/gc_implementation/g1/vm_operations_g1.cpp
! src/share/vm/gc_interface/gcCause.cpp
! src/share/vm/gc_interface/gcCause.hpp