[8u60] approval request for 8067636 and 8080598

[A. Sundararajan]

Please approve.

Bugs:

https://bugs.openjdk.java.net/browse/JDK-8067636
https://bugs.openjdk.java.net/browse/JDK-8080598

jdk8u-dev webrev: 
http://cr.openjdk.java.net/~sundar/8067636_8080598/8u60/webrev.00/

jdk9 review threads:

http://mail.openjdk.java.net/pipermail/nashorn-dev/2014-December/004036.html
http://mail.openjdk.java.net/pipermail/nashorn-dev/2015-May/004579.html

Backported "as is" except for the modular source layout differences.

Thanks,
-Sundar