hg: jdk/jdk: 8233093: Move CDS heap oopmaps into new MetaspaceShared::bm region

[calvin.cheung at oracle.com]

Changeset: 5ac19bd3a1e2
Author:    ccheung
Date:      2020-03-26 10:14 -0700
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/5ac19bd3a1e2

8233093: Move CDS heap oopmaps into new MetaspaceShared::bm region
Summary: Moved the _closed_archive_heap_oopmaps and _open_archive_heap_oopmaps from the ro to the bm region.
Reviewed-by: iklam, minqi

! src/hotspot/share/memory/dynamicArchive.cpp
! src/hotspot/share/memory/filemap.cpp
! src/hotspot/share/memory/filemap.hpp
! src/hotspot/share/memory/metaspaceShared.cpp
! src/hotspot/share/memory/metaspaceShared.hpp