hg: panama/dev: Allow jextract to generate class files with option -d

[henry.jen at oracle.com]

Changeset: 4375de3b0b98
Author:    henryjen
Date:      2018-03-08 06:52 -0800
URL:       http://hg.openjdk.java.net/panama/dev/rev/4375de3b0b98

Allow jextract to generate class files with option -d
Reviewed-by: sundar, mcimadamore

! src/jdk.jextract/share/classes/com/sun/tools/jextract/Context.java
! src/jdk.jextract/share/classes/com/sun/tools/jextract/Main.java
! src/jdk.jextract/share/classes/com/sun/tools/jextract/resources/Messages.properties