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

[maurizio.cimadamore at oracle.com]

Changeset: 6542c7186431
Author:    langtools at sthdev02.uk.oracle.com
Date:      2017-07-21 00:00 +0200
URL:       http://hg.openjdk.java.net/amber/amber/langtools/rev/6542c7186431

Automatic merge with default

! src/jdk.compiler/share/classes/com/sun/tools/javac/parser/JavacParser.java