[9] RFR: 8060717: [TESTBUG] Improve test coverage of MethodHandles.explicitCastArguments()

[Konstantin Shefov]

Hello,

Please review a test improvement. Covered more cases for 
MethodHandles.explicitCastArguments().

Bug: https://bugs.openjdk.java.net/browse/JDK-8060717
Webrev: http://cr.openjdk.java.net/~kshefov/8060717/webrev.00/

-Konstantin