ART: Enable more Clang warnings

Change-Id: Ie6aba02f4223b1de02530e1515c63505f37e184c
diff --git a/runtime/quick_exception_handler.h b/runtime/quick_exception_handler.h
index 8cccec8..7ee4118 100644
--- a/runtime/quick_exception_handler.h
+++ b/runtime/quick_exception_handler.h
@@ -38,7 +38,7 @@
   QuickExceptionHandler(Thread* self, bool is_deoptimization)
       SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
 
-  ~QuickExceptionHandler() {
+  NO_RETURN ~QuickExceptionHandler() {
     LOG(FATAL) << "UNREACHABLE";  // Expected to take long jump.
     UNREACHABLE();
   }