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

Source/bindings/tests/results/modules/V8TestInterface5.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"
 #if ENABLE(CONDITION)
 #include "V8TestInterface5.h"
 
@@ skipping 977 matching lines @@
             "windowExposedStaticMethod", TestInterface5ImplementationV8Internal::windowExposedStaticMethodMethodCallback, 0, 0, V8DOMConfiguration::ExposedToAllScripts,
         };
         V8DOMConfiguration::installMethod(isolate, functionTemplate, v8::Local<v8::Signature>(), v8::None, windowExposedStaticMethodMethodConfiguration);
     }
     const V8DOMConfiguration::MethodConfiguration toStringMethodConfiguration = {
         "toString", TestInterface5ImplementationV8Internal::toStringMethodCallback, 0, 0, V8DOMConfiguration::ExposedToAllScripts,
     };
     V8DOMConfiguration::installMethod(isolate, prototypeTemplate, defaultSignature, static_cast<v8::PropertyAttribute>(v8::DontDelete | v8::DontEnum), toStringMethodConfiguration);
     functionTemplate->SetNativeDataProperty(v8AtomicString(isolate, "staticStringAttribute"), TestInterface5ImplementationV8Internal::staticStringAttributeAttributeGetterCallback, TestInterface5ImplementationV8Internal::staticStringAttributeAttributeSetterCallback, v8::External::New(isolate, 0), static_cast<v8::PropertyAttribute>(v8::None), v8::Local<v8::AccessorSignature>(), static_cast<v8::AccessControl>(v8::DEFAULT));
 
+    instanceTemplate->Set(v8::Symbol::GetToStringTag(isolate), v8AtomicString(isolate, "TestInterface5"));
+
+    prototypeTemplate->Set(v8::Symbol::GetToStringTag(isolate), v8AtomicString(isolate, "TestInterface5Prototype"));
+
     // Custom toString template
     functionTemplate->Set(v8AtomicString(isolate, "toString"), V8PerIsolateData::from(isolate)->toStringTemplate());
 }
 
 v8::Local<v8::FunctionTemplate> V8TestInterface5::domTemplate(v8::Isolate* isolate)
 {
     return V8DOMConfiguration::domClassTemplate(isolate, const_cast<WrapperTypeInfo*>(&wrapperTypeInfo), installV8TestInterface5Template);
 }
 
 bool V8TestInterface5::hasInstance(v8::Local<v8::Value> v8Value, v8::Isolate* isolate)
@@ skipping 53 matching lines @@
     scriptWrappable->toImpl<TestInterface5Implementation>()->ref();
 }
 
 void V8TestInterface5::derefObject(ScriptWrappable* scriptWrappable)
 {
     scriptWrappable->toImpl<TestInterface5Implementation>()->deref();
 }
 
 } // namespace blink
 #endif // ENABLE(CONDITION)