Review Request: 8006506: Add test for redefining methods in backtraces to java/lang/instrument tests

[Stefan Karlsson]

http://cr.openjdk.java.net/~stefank/8006506/webrev.00/

This test provokes the JVM crash described in bug: JDK-7174978.

I intend to push this to:
http://hg.openjdk.java.net/jdk8/tl/jdk

thanks,
StefanK