[8u-dev] Request for Approval: 8087312: PropertyMapWrapper.equals should compare className

[Hannes Wallnoefer]

Please approve backport of 8087312 to 8u-dev.

Bug: https://bugs.openjdk.java.net/browse/JDK-8087312
Webrev: http://cr.openjdk.java.net/~hannesw/8087312/webrev.01/
Review thread: 
http://mail.openjdk.java.net/pipermail/nashorn-dev/2015-June/004753.html

Changes apply cleanly to jdk8u-dev after path reshuffling.

Thanks,
Hannes