hg: amber/amber: Automatic merge with jep-334

[maurizio.cimadamore at oracle.com]

Changeset: ad2dac9ef560
Author:    mcimadamore
Date:      2018-05-30 20:00 +0200
URL:       http://hg.openjdk.java.net/amber/amber/rev/ad2dac9ef560

Automatic merge with jep-334

! src/java.base/share/classes/java/lang/invoke/constant/ConstantClassDesc.java