The metadata part of TypeFeedbackVector is extracted to TypeFeedbackMetadata array.

src/objects-printer.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/objects.h"
 
 #include "src/disasm.h"
 #include "src/disassembler.h"
 #include "src/interpreter/bytecodes.h"
 #include "src/objects-inl.h"
@@ skipping 521 matching lines @@
     if (is_the_hole(i)) {
       os << "<the hole>";
     } else {
       os << get_scalar(i);
     }
   }
   os << "\n";
 }
 
 
+void TypeFeedbackMetadata::Print() {
+  OFStream os(stdout);
+  TypeFeedbackMetadataPrint(os);
+  os << std::flush;
+}
+
+
+void TypeFeedbackMetadata::TypeFeedbackMetadataPrint(
+    std::ostream& os) {  // NOLINT
+  HeapObject::PrintHeader(os, "TypeFeedbackMetadata");
+  os << " - length: " << length();
+  if (length() == 0) {
+    os << " (empty)\n";
+    return;
+  }
+
+  TypeFeedbackMetadataIterator iter(this);
+  while (iter.HasNext()) {
+    FeedbackVectorSlot slot = iter.Next();
+    FeedbackVectorSlotKind kind = iter.kind();
+    os << "\n Slot " << slot << " " << kind;
+  }
+  os << "\n";
+}
+
+
 void TypeFeedbackVector::Print() {
   OFStream os(stdout);
   TypeFeedbackVectorPrint(os);
   os << std::flush;
 }
 
 
 void TypeFeedbackVector::TypeFeedbackVectorPrint(std::ostream& os) {  // NOLINT
   HeapObject::PrintHeader(os, "TypeFeedbackVector");
   os << " - length: " << length();
   if (length() == 0) {
     os << " (empty)\n";
     return;
   }
 
   os << "\n - ics with type info: " << ic_with_type_info_count();
   os << "\n - generic ics: " << ic_generic_count();
 
-  TypeFeedbackMetadataIterator iter(this);
+  TypeFeedbackMetadataIterator iter(metadata());
   while (iter.HasNext()) {
     FeedbackVectorSlot slot = iter.Next();
     FeedbackVectorSlotKind kind = iter.kind();
 
-    os << "\n ICSlot " << slot.ToInt() << " " << kind << " ";
+    os << "\n Slot " << slot << " " << kind << " ";
     switch (kind) {
       case FeedbackVectorSlotKind::LOAD_IC: {
         LoadICNexus nexus(this, slot);
         os << Code::ICState2String(nexus.StateFromFeedback());
         break;
       }
       case FeedbackVectorSlotKind::KEYED_LOAD_IC: {
         KeyedLoadICNexus nexus(this, slot);
         os << Code::ICState2String(nexus.StateFromFeedback());
         break;
@@ skipping 718 matching lines @@
   }
 }
 
 
 void JSObject::PrintTransitions(std::ostream& os) {  // NOLINT
   TransitionArray::PrintTransitions(os, map()->raw_transitions());
 }
 #endif  // defined(DEBUG) || defined(OBJECT_PRINT)
 }  // namespace internal
 }  // namespace v8