[7u4] Request for approval for CR 7097436 - Project Coin: duplicate varargs warnings on method annotated with @SafeVarargs

[Dmeetry Degrave]

Request for jdk7 update 4.

This is a port from jdk8 to 7u4 with identical fix.

7097436: Project Coin: duplicate varargs warnings on method annotated 
with @SafeVarargs
http://bugs.sun.com/view_bug.do?bug_id=7097436

webrev: http://cr.openjdk.java.net/~dmeetry/7097436/webrev.0/
jdk8: http://hg.openjdk.java.net/jdk8/tl/langtools/rev/b5d0b8effc85

Reviewed by Maurizio Cimadamore.

thanks,
dmeetry