[8] Request for review: JDK-8013437 Test sun/awt/datatransfer/SuplementaryCharactersTransferTest.java fails to compile since 8b86

[Anton V. Tarasov]

Hello,

Please, review the reg test fix:
jira: https://jbs.oracle.com/bugs/browse/JDK-8013437
webrev: http://cr.openjdk.java.net/~ant/JDK-8013437/webrev.0

It adopts the DataTransferer implementation according to class changes 
introduced in 7075105.

Thanks,
Anton.