[7u12] Request for approval for 8004391: Bug fix in jtreg causes test failures in pre jdk 8 langtools tests

[Dmeetry Degrave]

One more fix for a failing test caused by recent changes in jtreg. It's 
jdk7 only, n/a to 8.

http://bugs.sun.com/view_bug.do?bug_id=8004391
http://cr.openjdk.java.net/~dmeetry/8004391/webrev.0
http://mail.openjdk.java.net/pipermail/compiler-dev/2012-December/005129.html
thanks,
dmeetry