Add the native thread state to art SIGQUIT dumps.

Bug: 7053953
Change-Id: I9be3f828332e5bbb003644802d7770b58d8298ed
diff --git a/src/thread.cc b/src/thread.cc
index e3bbc4d..935b05c 100644
--- a/src/thread.cc
+++ b/src/thread.cc
@@ -671,12 +671,14 @@
     scheduler_stats = "0 0 0";
   }
 
+  char native_thread_state = '?';
   int utime = 0;
   int stime = 0;
   int task_cpu = 0;
-  GetTaskStats(tid, utime, stime, task_cpu);
+  GetTaskStats(tid, native_thread_state, utime, stime, task_cpu);
 
-  os << "  | schedstat=( " << scheduler_stats << " )"
+  os << "  | state=" << native_thread_state
+     << " schedstat=( " << scheduler_stats << " )"
      << " utm=" << utime
      << " stm=" << stime
      << " core=" << task_cpu