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

[maurizio.cimadamore at oracle.com]

Changeset: 2a492bd46fcd
Author:    langtools
Date:      2017-04-28 07:26 +0200
URL:       http://hg.openjdk.java.net/amber/amber/langtools/rev/2a492bd46fcd

Automatic merge with default