hg: panama/dev: Automatic merge with foreign

[maurizio.cimadamore at oracle.com]

Changeset: 436d895a0c9e
Author:    mcimadamore
Date:      2019-01-02 22:10 +0100
URL:       http://hg.openjdk.java.net/panama/dev/rev/436d895a0c9e

Automatic merge with foreign

! src/hotspot/share/runtime/thread.hpp