[8u-dev] Request for approval: 8060717: [TESTBUG] Improve test coverage of MethodHandles.explicitCastArguments()

[Konstantin Shefov]

Hello,

Could you approve the direct backport of the test only fix to JDK 8u-dev.

The bug: https://bugs.openjdk.java.net/browse/JDK-8060717
The webrev: http://cr.openjdk.java.net/~kshefov/8060717/webrev.01/
Review thread: 
http://mail.openjdk.java.net/pipermail/core-libs-dev/2015-July/034764.html
The JDK 9 changeset: 
http://hg.openjdk.java.net/jdk9/dev/jdk/rev/698c03ee0d7b

Thanks,
Konstantin