hg: jdk/sandbox: 8221478: Disable VerifySharedSpaces by default

[chris.hegarty at oracle.com]

Changeset: d7819bedfaaf
Author:    redestad
Date:      2019-05-14 12:00 +0200
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/d7819bedfaaf

8221478: Disable VerifySharedSpaces by default
Reviewed-by: iklam, dholmes

! src/hotspot/share/memory/filemap.cpp
! src/hotspot/share/runtime/arguments.cpp
! src/hotspot/share/runtime/globals.hpp
! test/hotspot/jtreg/runtime/appcds/SharedArchiveConsistency.java