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

[maurizio.cimadamore at oracle.com]

Changeset: cf5aa9d7cd0f
Author:    mcimadamore
Date:      2018-08-27 22:06 +0200
URL:       http://hg.openjdk.java.net/amber/amber/rev/cf5aa9d7cd0f

Automatic merge with jep-334

! test/jdk/java/lang/constant/ClassRefTest.java
! test/jdk/java/lang/constant/CondyRefTest.java
! test/jdk/java/lang/constant/MethodHandleRefTest.java