Improve Logging

A couple of changes here to improve logging. First, we eliminate some red herrings when a java app
is aborting by guarding some lock invariant checking when aborting.  Second, we print the name of the
thread (if it exists) if we try to suspend a thread with no peer.  A separate CL is coming that
eliminates most, if not all, of the occurences of this that we're seeing on device.

Change-Id: I9177e45462b1f0ff9b88be4d72c7d77edf6ac43c