hg: amber/amber/nashorn: initial push enhanced-enums branch

[vicente.romero at oracle.com]

Changeset: 2932e7f7e570
Author:    vromero
Date:      2017-03-23 10:55 -0700
URL:       http://hg.openjdk.java.net/amber/amber/nashorn/rev/2932e7f7e570

initial push enhanced-enums branch