Install the 'name' property in classes at runtime

src/factory.h

Index: src/factory.h
diff --git a/src/factory.h b/src/factory.h
index 09cb9405be41a69a0247c14b7d1aff4d03c20b95..182eb1647a6a0f7993a8ea71b1a36c0e63f60bfc 100644
--- a/src/factory.h
+++ b/src/factory.h
@@ -710,6 +710,8 @@ class V8_EXPORT_PRIVATE Factory final {
   Handle<Map> CreateStrictFunctionMap(FunctionMode function_mode,
                                       Handle<JSFunction> empty_function);
 
+  Handle<Map> CreateClassFunctionMap(Handle<JSFunction> empty_function);
+
   // Allocates a new JSMessageObject object.
   Handle<JSMessageObject> NewJSMessageObject(MessageTemplate::Template message,
                                              Handle<Object> argument,
@@ -791,6 +793,8 @@ class V8_EXPORT_PRIVATE Factory final {
 
   void SetStrictFunctionInstanceDescriptor(Handle<Map> map,
                                            FunctionMode function_mode);
+
+  void SetClassFunctionInstanceDescriptor(Handle<Map> map);
 };
 
 }  // namespace internal