hg: panama/dev: Automatic merge with foreign

[maurizio.cimadamore at oracle.com]

Changeset: 4edb9d686e3a
Author:    mcimadamore
Date:      2019-02-11 14:11 +0100
URL:       http://hg.openjdk.java.net/panama/dev/rev/4edb9d686e3a

Automatic merge with foreign

- src/java.base/share/classes/jdk/internal/foreign/memory/Reference.java