[8u40] approval request for 8055762: Nashorn misses linker for netscape.javascript.JSObject instances

[A. Sundararajan]

Hi,

Please approve.

Bug: https://bugs.openjdk.java.net/browse/JDK-8055762
jdk9 review thread: 
http://mail.openjdk.java.net/pipermail/nashorn-dev/2014-August/003291.html
jdk8u40 webrev: http://cr.openjdk.java.net/~sundar/8055762/8u40/

8u40 webrev is same as jdk9 webrev except for modular source directory 
change in jdk9.

Thanks,
-Sundar