Today when testing dying with dignity, we simply throw an
OutOfMemoryError. We know this should not get caught by any intermediate
code and end up in the uncaught exception handler. This allows us to
test that this exception handler is able to successfully kill the
VM. However, it is on the table to no longer use the uncaught exception
handler, but instead the built-in support for ExitOnOutOfMemoryError. A
fake OutOfMemoryError would not be processed by this handler, so to
prepare the way, we switch to using a real OutOfMemoryError.

…th-dignity-actual-oom