interpreter ForceEarlyExit contain stop("Not tested this") call.

In attach there is sample demo consisted from app and agent.
App throws exception and prints message when it catched and when
finally block executed.

Agent catches same exception from application, and calls ForceEarlyExit
on active thread.

When no agent attached, there should be such messages:
about to throw...
catch!
finally!
exiting...

When agent attached, now jvm crashes with "Not tested this" message.

After removing stop (patch in attach), everything should work as
expected, I see such messages:
Hello from agent
about to throw...
called callbackException 3!
exiting...

Since stop is only reason this test fails, let's delete it?