hg: jdk/sandbox: Support -XX:+UseNoGC as the alias for -XX:+UseEpsilonGC

[ashipile at redhat.com]

Changeset: dd005db4ec5c
Author:    shade
Date:      2018-01-18 12:08 +0100
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/dd005db4ec5c

Support -XX:+UseNoGC as the alias for -XX:+UseEpsilonGC

! src/hotspot/share/gc/epsilon/epsilonArguments.cpp
! src/hotspot/share/gc/shared/gcArguments.cpp
! src/hotspot/share/runtime/arguments.cpp
! src/hotspot/share/runtime/globals.hpp
+ test/hotspot/jtreg/gc/epsilon/TestEpsilonEnabledNoGC.java