hg: panama/dev: 8232273: Add support for shared memory segments

[maurizio.cimadamore at oracle.com]

Changeset: f00c751b82ad
Author:    mcimadamore
Date:      2019-10-15 18:35 +0100
URL:       https://hg.openjdk.java.net/panama/dev/rev/f00c751b82ad

8232273: Add support for shared memory segments
Reviewed-by: jvernee

! src/java.base/share/classes/java/lang/invoke/X-VarHandleMemoryAddressView.java.template
! src/java.base/share/classes/module-info.java
! src/jdk.incubator.foreign/share/classes/jdk/incubator/foreign/MemorySegment.java
! src/jdk.incubator.foreign/share/classes/jdk/incubator/foreign/package-info.java
- src/jdk.incubator.foreign/share/classes/jdk/internal/foreign/BufferScope.java
- src/jdk.incubator.foreign/share/classes/jdk/internal/foreign/HeapScope.java
- src/jdk.incubator.foreign/share/classes/jdk/internal/foreign/MappedMemoryScope.java
! src/jdk.incubator.foreign/share/classes/jdk/internal/foreign/MemoryAddressImpl.java
+ src/jdk.incubator.foreign/share/classes/jdk/internal/foreign/MemoryScope.java
! src/jdk.incubator.foreign/share/classes/jdk/internal/foreign/MemorySegmentImpl.java
- src/jdk.incubator.foreign/share/classes/jdk/internal/foreign/NativeScope.java
! src/jdk.incubator.foreign/share/classes/jdk/internal/foreign/Utils.java
! test/jdk/java/foreign/TestSegments.java
+ test/jdk/java/foreign/TestSharedAccess.java