hg: jdk/jdk: 8245226: Clean-up FlagSetting and remove misuse.

[patric.hedlin at oracle.com]

Changeset: a5649ebf9419
Author:    phedlin
Date:      2020-02-24 14:06 +0100
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/a5649ebf9419

8245226: Clean-up FlagSetting and remove misuse.
Reviewed-by: neliasso, dholmes

! src/hotspot/share/gc/g1/g1CollectedHeap.cpp
! src/hotspot/share/gc/shared/genCollectedHeap.cpp
! src/hotspot/share/memory/universe.cpp
! src/hotspot/share/runtime/flags/flagSetting.hpp
! src/hotspot/share/runtime/handshake.hpp
+ src/hotspot/share/utilities/autoRestore.hpp
! test/hotspot/gtest/gc/shared/test_collectorPolicy.cpp
! test/hotspot/gtest/runtime/test_globals.cpp
! test/hotspot/gtest/runtime/test_os_windows.cpp