Java 8 RFR 8022109: Evaluate adding incrementExact, decrementExact, negateExact to java.lang.Math

[Brian Burkhalter]

Please review at your convenience:

Issue	http://bugs.sun.com/view_bug.do?bug_id=8022109
Webrev	http://cr.openjdk.java.net/~bpb/8022109/

The update is to add the methods incrementExact(), decrementExact(), and negateExact() for int and long parameters to java.lang.Math.

Thanks,

Brian