Version 4.4.63.31 (cherry-pick)

src/objects-printer.cc

Index: src/objects-printer.cc
diff --git a/src/objects-printer.cc b/src/objects-printer.cc
index aa4f4ded195842b1c696285ac6e3485dc6a7b28c..6430c654a0606adc7d27c8f1ceb675c904aaf094 100644
--- a/src/objects-printer.cc
+++ b/src/objects-printer.cc
@@ -884,6 +884,7 @@ void Box::BoxPrint(std::ostream& os) {  // NOLINT
 void PrototypeInfo::PrototypeInfoPrint(std::ostream& os) {  // NOLINT
   HeapObject::PrintHeader(os, "PrototypeInfo");
   os << "\n - prototype users: " << Brief(prototype_users());
+  os << "\n - registry slot: " << registry_slot();
   os << "\n - validity cell: " << Brief(validity_cell());
   os << "\n - constructor name: " << Brief(constructor_name());
   os << "\n";