Enable annotalysis on clang ART builds.

Fix clang build errors aswell as restructure locking/mutex code for correct
thread safety analysis support.
Reorder make dependencies so that host builds build first as they should
provide better compilation errors than target.
Remove host's use of -fno-omit-frame-pointer as it has no value with correct
use of CFI, which we should have.

Change-Id: I72cea8da9a3757b1a0b3acb4081feccb7c6cef90
diff --git a/runtime/thread-inl.h b/runtime/thread-inl.h
index f7e88cc..66077f9 100644
--- a/runtime/thread-inl.h
+++ b/runtime/thread-inl.h
@@ -146,9 +146,10 @@
     if (UNLIKELY(!done)) {
       // Failed to transition to Runnable. Release shared mutator_lock_ access and try again.
       Locks::mutator_lock_->SharedUnlock(this);
+    } else {
+      return static_cast<ThreadState>(old_state);
     }
-  } while (UNLIKELY(!done));
-  return static_cast<ThreadState>(old_state);
+  } while (true);
 }
 
 inline void Thread::VerifyStack() {