[DO NOT LAND] Set @@toStringTag for DOM object prototypes

Source/bindings/tests/results/core/V8TestInterfaceEventTarget.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file has been auto-generated by code_generator_v8.py. DO NOT MODIFY!
 
 #include "config.h"
 #include "V8TestInterfaceEventTarget.h"
 
 #include "bindings/core/v8/ExceptionState.h"
@@ skipping 45 matching lines @@
     static int domTemplateKey; // This address is used for a key to look up the dom template.
     V8PerIsolateData* data = V8PerIsolateData::from(isolate);
     v8::Local<v8::FunctionTemplate> result = data->existingDOMTemplate(&domTemplateKey);
     if (!result.IsEmpty())
         return result;
 
     TRACE_EVENT_SCOPED_SAMPLING_STATE("blink", "BuildDOMTemplate");
     result = v8::FunctionTemplate::New(isolate, V8TestInterfaceEventTargetConstructorCallback);
     v8::Local<v8::ObjectTemplate> instanceTemplate = result->InstanceTemplate();
     instanceTemplate->SetInternalFieldCount(V8TestInterfaceEventTarget::internalFieldCount);
-    result->SetClassName(v8AtomicString(isolate, "TestInterfaceEventTarget"));
     result->Inherit(V8TestInterfaceEventTarget::domTemplate(isolate));
     data->setDOMTemplate(&domTemplateKey, result);
     return result;
 }
 
 static void installV8TestInterfaceEventTargetTemplate(v8::Local<v8::FunctionTemplate> functionTemplate, v8::Isolate* isolate)
 {
     functionTemplate->ReadOnlyPrototype();
 
     v8::Local<v8::Signature> defaultSignature;
     defaultSignature = V8DOMConfiguration::installDOMClassTemplate(isolate, functionTemplate, "TestInterfaceEventTarget", V8EventTarget::domTemplate(isolate), V8TestInterfaceEventTarget::internalFieldCount,
         0, 0,
         0, 0,
         0, 0);
     v8::Local<v8::ObjectTemplate> instanceTemplate = functionTemplate->InstanceTemplate();
     ALLOW_UNUSED_LOCAL(instanceTemplate);
     v8::Local<v8::ObjectTemplate> prototypeTemplate = functionTemplate->PrototypeTemplate();
     ALLOW_UNUSED_LOCAL(prototypeTemplate);
 
+    prototypeTemplate->Set(v8::Symbol::GetToStringTag(isolate), v8AtomicString(isolate, "TestInterfaceEventTarget"));
+
     // Custom toString template
     functionTemplate->Set(v8AtomicString(isolate, "toString"), V8PerIsolateData::from(isolate)->toStringTemplate());
 }
 
 v8::Local<v8::FunctionTemplate> V8TestInterfaceEventTarget::domTemplate(v8::Isolate* isolate)
 {
     return V8DOMConfiguration::domClassTemplate(isolate, const_cast<WrapperTypeInfo*>(&wrapperTypeInfo), installV8TestInterfaceEventTargetTemplate);
 }
 
 bool V8TestInterfaceEventTarget::hasInstance(v8::Local<v8::Value> v8Value, v8::Isolate* isolate)
@@ skipping 19 matching lines @@
 }
 
 void V8TestInterfaceEventTarget::derefObject(ScriptWrappable* scriptWrappable)
 {
 #if !ENABLE(OILPAN)
     scriptWrappable->toImpl<TestInterfaceEventTarget>()->deref();
 #endif
 }
 
 } // namespace blink