[8u] approval request for 8158338: Nashorn's ScriptLoader split delegation has to be adjusted

[Sundararajan Athijegannathan]

Please approve.

Bug: https://bugs.openjdk.java.net/browse/JDK-8158338

jdk9 review thread:
http://mail.openjdk.java.net/pipermail/nashorn-dev/2016-June/006259.html

jdk8u webrev:  http://cr.openjdk.java.net/~sundar/8158338/8u/webrev.00/

Backport patch wouldn't apply "as is" because of jdk9/Module specific
changes in jdk9 are not applicable to jdk8u.

CC'ing this approval to nashorn team for backport webrev review.

Thanks,

-Sundar