Code review for 8004391: Bug fix in jtreg causes test failures in pre jdk 8 langtools tests

[Dmeetry Degrave]

Hi,

We have a number of tests failed with the latest version of jtreg with 
-samevm option. Several tests were fixed by 7192449 and 7192744 [1][2]. 
The fix [3] addresses the last 8004391's failing test in jdk7.

http://bugs.sun.com/view_bug.do?bug_id=8004391

thanks,
dmeetry

[1] http://hg.openjdk.java.net/jdk7u/jdk7u-dev/langtools/rev/42046927957f
[2] http://hg.openjdk.java.net/jdk7u/jdk7u-dev/langtools/rev/346b1eb8c309
[3] http://cr.openjdk.java.net/~dmeetry/8004391/webrev.0/