Expose an API method for getting JSObject constructor name

src/profile-generator.cc

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1277 matching lines @@
   } else if (object->IsJSRegExp()) {
     JSRegExp* re = JSRegExp::cast(object);
     return AddEntry(object,
                     HeapEntry::kRegExp,
                     collection_->GetName(re->Pattern()),
                     children_count,
                     retainers_count);
   } else if (object->IsJSObject()) {
     return AddEntry(object,
                     HeapEntry::kObject,
-                    collection_->GetName(
-                        JSObject::cast(object)->constructor_name()),
+                    collection_->GetName(GetConstructorNameForHeapProfile(
+                        JSObject::cast(object))),
                     children_count,
                     retainers_count);
   } else if (object->IsString()) {
     return AddEntry(object,
                     HeapEntry::kString,
                     collection_->GetName(String::cast(object)),
                     children_count,
                     retainers_count);
   } else if (object->IsCode()) {
     return AddEntry(object,
@@ skipping 1452 matching lines @@
 }
 
 
 void HeapSnapshotJSONSerializer::SortHashMap(
     HashMap* map, List<HashMap::Entry*>* sorted_entries) {
   for (HashMap::Entry* p = map->Start(); p != NULL; p = map->Next(p))
     sorted_entries->Add(p);
   sorted_entries->Sort(SortUsingEntryValue);
 }
 
+
+String* GetConstructorNameForHeapProfile(JSObject* object) {
+  if (object->IsJSFunction()) return Heap::closure_symbol();
+  return object->constructor_name();
+}
+
 } }  // namespace v8::internal
 
 #endif  // ENABLE_LOGGING_AND_PROFILING