Fix issue with Thread.setName hanging after Thread.start

When suspending a thread by peer the invariant that only attached threads are
suspended must be maintained. Add a ThreadList::Contains check which requires
making this method non-static.
Add some extra thread logging.

Bug: 17302037

(cherry picked from commit 37c16453)

Change-Id: I51832785d4b4b431e035318e75635f442e89a1fb