Function step_create_widget

UnitTests/UnitTest_AttachDetach/DemoKeeper.cpp:186–209

	}

	static void step_create_widget()
	{
		MyGUI::Widget* widget = get_random(all_widgets);
		if (widget)
		{
			auto type = get_type();
			auto layer = type == MyGUI::WidgetStyle::Popup ? get_layer() : "";
			MyGUI::Widget* child =
				widget->createWidget<MyGUI::Widget>(type, get_skin(), get_coord(), MyGUI::Align::Default, layer);
			MYGUI_ASSERT(child, "child nullptr");
			all_widgets.push_back(child);
		}
		else
		{
			MyGUI::Widget* child = MyGUI::Gui::getInstance().createWidget<MyGUI::Widget>(
				get_skin(),
				get_coord(),
				MyGUI::Align::Default,
				get_layer());
			MYGUI_ASSERT(child, "child nullptr");
			all_widgets.push_back(child);
		}
		test_widgets();
	}

	static void step_create_widget(int _count)
	{