The metadata part of TypeFeedbackVector is extracted to TypeFeedbackMetadata array.

src/factory.cc

Index: src/factory.cc
diff --git a/src/factory.cc b/src/factory.cc
index ef87fa391e1525f260d7602f5c1bba0e2e795861..43d29f6f0f007bd14ebc71b27e3f587aa3898898 100644
--- a/src/factory.cc
+++ b/src/factory.cc
@@ -2138,8 +2138,10 @@ Handle<SharedFunctionInfo> Factory::NewSharedFunctionInfo(
   share->set_debug_info(*undefined_value(), SKIP_WRITE_BARRIER);
   share->set_inferred_name(*empty_string(), SKIP_WRITE_BARRIER);
   StaticFeedbackVectorSpec empty_spec;
+  Handle<TypeFeedbackMetadata> feedback_metadata =
+      TypeFeedbackMetadata::New(isolate(), &empty_spec);
   Handle<TypeFeedbackVector> feedback_vector =
-      TypeFeedbackVector::New(isolate(), &empty_spec);
+      TypeFeedbackVector::New(isolate(), feedback_metadata);
   share->set_feedback_vector(*feedback_vector, SKIP_WRITE_BARRIER);
 #if TRACE_MAPS
   share->set_unique_id(isolate()->GetNextUniqueSharedFunctionInfoId());