Dump more debug info for b/33006388.

Bug: 33006388
Bug: 12687968
Test: test-art-host with CC.
Change-Id: Id9d67bc603c6ff7bc8e346e181e3e09ffbda43b3
diff --git a/runtime/thread.cc b/runtime/thread.cc
index 1283cf0..0bcb2f7 100644
--- a/runtime/thread.cc
+++ b/runtime/thread.cc
@@ -1394,6 +1394,7 @@
     os << "  | group=\"" << group_name << "\""
        << " sCount=" << thread->tls32_.suspend_count
        << " dsCount=" << thread->tls32_.debug_suspend_count
+       << " flags=" << thread->tls32_.state_and_flags.as_struct.flags
        << " obj=" << reinterpret_cast<void*>(thread->tlsPtr_.opeer)
        << " self=" << reinterpret_cast<const void*>(thread) << "\n";
   }