hg: amber/amber/langtools: Automatic merge with default

[maurizio.cimadamore at oracle.com]

Changeset: 0c9d3882f612
Author:    langtools
Date:      2017-05-12 01:26 +0200
URL:       http://hg.openjdk.java.net/amber/amber/langtools/rev/0c9d3882f612

Automatic merge with default