8298371: monitors_on_stack extracts unprocessed oops

Reviewed-by: pchilanomate, rehn

src/hotspot/share/runtime/continuationFreezeThaw.cpp

@@ -1461,7 +1461,7 @@ static bool monitors_on_stack(JavaThread* thread) {
   ContinuationEntry* ce = thread->last_continuation();
   RegisterMap map(thread,
                   RegisterMap::UpdateMap::include,
-                  RegisterMap::ProcessFrames::skip,
+                  RegisterMap::ProcessFrames::include,
                   RegisterMap::WalkContinuation::skip);
   map.set_include_argument_oops(false);
   for (frame f = thread->last_frame(); Continuation::is_frame_in_continuation(ce, f); f = f.sender(&map)) {