hg: jdk9/dev/nashorn: 8006996: Add a pretty printer that prints script source in nice form

[sundararajan.athijegannathan at oracle.com]

Changeset: 984370b5de3b
Author:    sundar
Date:      2015-03-19 15:13 +0530
URL:       http://hg.openjdk.java.net/jdk9/dev/nashorn/rev/984370b5de3b

8006996: Add a pretty printer that prints script source in nice form
Reviewed-by: lagergren, hannesw

+ samples/prettyprinter.js