!31269 Fix ut debug mode compile

Merge pull request !31269 from qujianwei/master

tests/ut/cpp/stub/graph/node.cc

@@ -0,0 +1,23 @@
+/**
+ * Copyright 2022 Huawei Technologies Co., Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "graph/node.h"
+#include "graph/op_desc.h"
+
+ge::OpDescPtr ge::Node::GetOpDesc() const {
+    OpDescPtr op_desc_ptr;
+    return op_desc_ptr;
+}