[RFA\JVMTI] Implement GetAllThreads

[Tom Tromey]

>>>>> "Kyle" == Kyle Galloway <kgallowa@redhat.com> writes:

Kyle> 	* jvmti.cc (_Jv_JVMTI_GetAllThreads): New function.
Kyle> 	* testsuite/libjava.jvmti/getallthreads.java: New test.
Kyle> 	* testsuite/libjava.jvmti/natgetallthreads.cc: Ditto.
Kyle> 	* testsuite/libjava.jvmti/getallthreads.out: Ditto.

Note that when adding a new test case, you must now check in a .jar
file as well.  This lets 'make check' work even for folks who haven't
configured with --enable-java-maintainer-mode.

Kyle> +  ThreadGroup *parent = thr_grp->getParent ();

This will do a security manager check... do we really want that here?
(I really don't know...)

Tom