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

[maurizio.cimadamore at oracle.com]

Changeset: 657f692588ff
Author:    langtools at sthdev02.uk.oracle.com
Date:      2017-07-14 00:01 +0200
URL:       http://hg.openjdk.java.net/amber/amber/langtools/rev/657f692588ff

Automatic merge with default

! src/jdk.compiler/share/classes/com/sun/tools/javac/jvm/ClassReader.java