hg: jdk9/hs-rt/hotspot: 8150367: Add back information about the number of GC workers

[bengt.rutisson at oracle.com]

Changeset: c35381ecd2da
Author:    brutisso
Date:      2016-02-23 09:52 +0100
URL:       http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/c35381ecd2da

8150367: Add back information about the number of GC workers
Reviewed-by: sjohanss, tschatzl

! src/share/vm/gc/g1/g1CollectedHeap.cpp
! src/share/vm/gc/shared/workgroup.hpp