Code review for 7097436: "Project Coin: duplicate varargs warnings on method annotated with @SafeVarargs"

[Dmeetry Degrave]

hi,

I'm looking for a code review for 7097436. This is a port from jdk8 to 
7u4 with identical fix.

bug: 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

javac jtreg tests passed.

thanks,
dmeetry