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

Source/bindings/tests/results/core/V8TestObject.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 "V8TestObject.h"
 
 #include "bindings/core/v8/BindingSecurity.h"
@@ skipping 12999 matching lines @@
         "partiallyRuntimeEnabledOverloadedVoidMethod", TestObjectV8Internal::partiallyRuntimeEnabledOverloadedVoidMethodMethodCallback, 0, TestObjectV8Internal::partiallyRuntimeEnabledOverloadedVoidMethodMethodLength(), V8DOMConfiguration::ExposedToAllScripts,
     };
     V8DOMConfiguration::installMethod(isolate, prototypeTemplate, defaultSignature, v8::None, partiallyRuntimeEnabledOverloadedVoidMethodMethodConfiguration);
     const V8DOMConfiguration::MethodConfiguration unforgeableVoidMethodMethodConfiguration = {
         "unforgeableVoidMethod", TestObjectV8Internal::unforgeableVoidMethodMethodCallback, 0, 0, V8DOMConfiguration::ExposedToAllScripts,
     };
     V8DOMConfiguration::installMethod(isolate, instanceTemplate, defaultSignature, static_cast<v8::PropertyAttribute>(v8::DontDelete | v8::ReadOnly), unforgeableVoidMethodMethodConfiguration);
     functionTemplate->SetNativeDataProperty(v8AtomicString(isolate, "staticStringAttribute"), TestObjectV8Internal::staticStringAttributeAttributeGetterCallback, TestObjectV8Internal::staticStringAttributeAttributeSetterCallback, v8::External::New(isolate, 0), static_cast<v8::PropertyAttribute>(v8::None), v8::Local<v8::AccessorSignature>(), static_cast<v8::AccessControl>(v8::DEFAULT));
     functionTemplate->SetNativeDataProperty(v8AtomicString(isolate, "staticLongAttribute"), TestObjectV8Internal::staticLongAttributeAttributeGetterCallback, TestObjectV8Internal::staticLongAttributeAttributeSetterCallback, v8::External::New(isolate, 0), static_cast<v8::PropertyAttribute>(v8::None), v8::Local<v8::AccessorSignature>(), static_cast<v8::AccessControl>(v8::DEFAULT));
 
+    prototypeTemplate->Set(v8::Symbol::GetToStringTag(isolate), v8AtomicString(isolate, "TestObject"));
+
     // Custom toString template
     functionTemplate->Set(v8AtomicString(isolate, "toString"), V8PerIsolateData::from(isolate)->toStringTemplate());
 }
 
 v8::Local<v8::FunctionTemplate> V8TestObject::domTemplate(v8::Isolate* isolate)
 {
     return V8DOMConfiguration::domClassTemplate(isolate, const_cast<WrapperTypeInfo*>(&wrapperTypeInfo), installV8TestObjectTemplate);
 }
 
 bool V8TestObject::hasInstance(v8::Local<v8::Value> v8Value, v8::Isolate* isolate)
@@ skipping 560 matching lines @@
     ScriptState::Scope scope(scriptState);
     v8::Local<v8::Value> holder = toV8(holderImpl, scriptState->context()->Global(), scriptState->isolate());
     if (holder.IsEmpty())
         return false;
 
     ExceptionState exceptionState(ExceptionState::SetterContext, "enumForPrivateScript", "TestObject", scriptState->context()->Global(), scriptState->isolate());
     return PrivateScriptRunner::runDOMAttributeSetter(scriptState, scriptStateInUserScript, "TestObject", "enumForPrivateScript", holder, v8String(scriptState->isolate(), cppValue));
 }
 
 } // namespace blink