hg: panama/dev: 8224993: Add Unsafe support for MemoryAddress

[maurizio.cimadamore at oracle.com]

Changeset: 2b459521bb91
Author:    mcimadamore
Date:      2019-05-31 10:36 +0100
URL:       http://hg.openjdk.java.net/panama/dev/rev/2b459521bb91

8224993: Add Unsafe support for MemoryAddress
* Fix bad call from sun.misc.Unsafe to itself
* remove redundant checks from MmeoryAddressImpl::copy

! src/java.base/share/classes/jdk/internal/foreign/AbstractMemoryScopeImpl.java
! src/java.base/share/classes/jdk/internal/foreign/MemoryAddressImpl.java
! src/java.base/share/classes/jdk/internal/foreign/MemorySegmentImpl.java
! src/jdk.unsupported/share/classes/sun/misc/Unsafe.java