RFR JDK-8016764: JVM does not prohibit invokespecial in c.f.v 51.0 that invokes default interface method in c.f.v 52.0

[harold seigel]

Hi,

Please review this small fix for bug 8016764.  The change prevents class 
files of version 51 and lower from using invokespecial to call default 
interface methods that are in class files of version 52.

The fix was tested with the JCK Lang and VM tests, ute tests, and some 
of the tests listed in the bug.

Open webrev: http://cr.openjdk.java.net/~hseigel/bug_8016764/ 
<http://cr.openjdk.java.net/%7Ehseigel/bug_8016764/>

bug: https://bugs.openjdk.java.net/browse/JDK-8016764

Thanks! Harold