hg: jdk9/hs-rt/hotspot: 8068579: Running with -XX:-UseParallelGC does not turn ParalleGC off

[per.liden at oracle.com]

Changeset: fdeedce78d1e
Author:    pliden
Date:      2016-03-29 08:42 +0200
URL:       http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/fdeedce78d1e

8068579: Running with -XX:-UseParallelGC does not turn ParalleGC off
Reviewed-by: jmasa, dfazunen, brutisso

! src/share/vm/runtime/arguments.cpp
! src/share/vm/runtime/arguments.hpp
! src/share/vm/runtime/globals_extension.hpp
+ test/gc/arguments/TestDisableDefaultGC.java