hg: panama/dev: Automatic merge with foreign

[maurizio.cimadamore at oracle.com]

Changeset: 1897fd544729
Author:    mcimadamore
Date:      2019-03-23 00:34 +0100
URL:       http://hg.openjdk.java.net/panama/dev/rev/1897fd544729

Automatic merge with foreign

! src/hotspot/cpu/x86/assembler_x86.hpp
! src/hotspot/cpu/x86/macroAssembler_x86.hpp