[8u20] Request for approval to backport of Nashorn test fix from jdk9/dev to jdk8u20

[Matherey Nunez]

Hi,

Please approve the backport of following test fix:
Bug: https://bugs.openjdk.java.net/browse/JDK-8037378
jdk9-dev changeset: 
http://hg.openjdk.java.net/jdk9/dev/nashorn/rev/e2df2f9b4d70

Bug: https://bugs.openjdk.java.net/browse/JDK-8037779
jdk9-dev changeset: 
http://hg.openjdk.java.net/jdk9/dev/nashorn/rev/62ee612afc3e

Both changesets apply cleanly to 8u-dev.

Thanks,
Matherey