Fix compatibilty issues after PR #18282

[dumganhar]

Re: #18282

Changelog

---

Continuous Integration

This pull request:

• needs automatic test cases check.

  Manual trigger with @cocos-robot run test cases afterward.

• does not change any runtime related code or build configuration

  If any reviewer thinks the CI checks are needed, please uncheck this option, then close and reopen the issue.

---

Compatibility Check

This pull request:

• changes public API, and have ensured backward compatibility with deprecated features.
• affects platform compatibility, e.g. system version, browser version, platform sdk version, platform toolchain, language version, hardware compatibility etc.
• affects file structure of the build package or build configuration which requires user project upgrade.
• introduces breaking changes, please list all changes, affected features and the scope of violation.

[github-actions]

Code Size Check Report

Wechat (WASM)	Before	After	Diff
2D Empty (legacy pipeline)	1001794 bytes	1001794 bytes	✅ 0 bytes
2D All (legacy pipeline)	2408779 bytes	2408779 bytes	✅ 0 bytes
2D All (new pipeline)	2498268 bytes	2498268 bytes	✅ 0 bytes
(2D + 3D) All	5380494 bytes	5380494 bytes	✅ 0 bytes

Web (WASM + ASMJS)	Before	After	Diff
(2D + 3D) All	16603945 bytes	16603945 bytes	✅ 0 bytes

Interface Check Report

! WARNING this pull request has changed these public interfaces:

@@ -24369,11 +24369,26 @@
          * @param className The class name of the target component
          * @example
          * ```
          * // get custom test class.
-         * var test = node.getComponent("Test");
+         * var test = node.getComponent("Test") as Test | null;
          * ```
          */
+        getComponent(className: string): Component | null;
+        /**
+         * @en
+         * Returns the component of supplied type if the node has one attached, null if it doesn't.
+         * You can also get component in the node by passing in the name of the script.
+         * @zh
+         * 获取节点上指定类型的组件，如果节点有附加指定类型的组件，则返回，如果没有则为空。
+         * 传入参数也可以是脚本的名称。
+         * @param className The class name of the target component
+         * @example
+         * ```
+         * // get custom test class.
+         * var test = node.getComponent<Test>("Test");
+         * ```
+         */
         getComponent<T extends Component>(className: string): T | null;
         /**
          * @en Returns all components of given type in the node.
          * @zh 返回节点上指定类型的所有组件。
@@ -24383,9 +24398,23 @@
         /**
          * @en Returns all components of given type in the node.
          * @zh 返回节点上指定类型的所有组件。
          * @param className The class name of the target component
+         * @example
+         * ```
+         * var test = node.getComponents('Test') as Test[];
+         * ```
          */
+        getComponents(className: string): Component[];
+        /**
+         * @en Returns all components of given type in the node.
+         * @zh 返回节点上指定类型的所有组件。
+         * @param className The class name of the target component
+         * @example
+         * ```
+         * var test = node.getComponents<Test>('Test');
+         * ```
+         */
         getComponents<T extends Component>(className: string): T[];
         /**
          * @en Returns the component of given type in any of its children using depth first search.
          * @zh 递归查找所有子节点中第一个匹配指定类型的组件。
@@ -24401,11 +24430,21 @@
          * @zh 递归查找所有子节点中第一个匹配指定类型的组件。
          * @param className The class name of the target component
          * @example
          * ```
-         * var Test = node.getComponentInChildren("Test");
+         * var test = node.getComponentInChildren("Test") as Test | null;
          * ```
          */
+        getComponentInChildren(className: string): Component | null;
+        /**
+         * @en Returns the component of given type in any of its children using depth first search.
+         * @zh 递归查找所有子节点中第一个匹配指定类型的组件。
+         * @param className The class name of the target component
+         * @example
+         * ```
+         * var test = node.getComponentInChildren<Test>("Test");
+         * ```
+         */
         getComponentInChildren<T extends Component>(className: string): T | null;
         /**
          * @en Returns all components of given type in self or any of its children.
          * @zh 递归查找自身或所有子节点中指定类型的组件
@@ -24421,11 +24460,21 @@
          * @zh 递归查找自身或所有子节点中指定类型的组件
          * @param className The class name of the target component
          * @example
          * ```
-         * var tests = node.getComponentsInChildren("Test");
+         * var tests = node.getComponentsInChildren("Test") as Test[];
          * ```
          */
+        getComponentsInChildren(className: string): Component[];
+        /**
+         * @en Returns all components of given type in self or any of its children.
+         * @zh 递归查找自身或所有子节点中指定类型的组件
+         * @param className The class name of the target component
+         * @example
+         * ```
+         * var tests = node.getComponentsInChildren<Test>("Test");
+         * ```
+         */
         getComponentsInChildren<T extends Component>(className: string): T[];
         /**
          * @en Adds a component class to the node. You can also add component to node by passing in the name of the script.
          * @zh 向节点添加一个指定类型的组件类，你还可以通过传入脚本的名称来添加组件。
@@ -24443,11 +24492,22 @@
          * @param className The class name of the component to add
          * @throws `TypeError` if the `className` does not specify a cc-class constructor extending the `Component`.
          * @example
          * ```
-         * var test = node.addComponent("Test");
+         * var test = node.addComponent("Test") as Test;
          * ```
          */
+        addComponent(className: string): Component;
+        /**
+         * @en Adds a component class to the node. You can also add component to node by passing in the name of the script.
+         * @zh 向节点添加一个指定类型的组件类，你还可以通过传入脚本的名称来添加组件。
+         * @param className The class name of the component to add
+         * @throws `TypeError` if the `className` does not specify a cc-class constructor extending the `Component`.
+         * @example
+         * ```
+         * var test = node.addComponent<Test>("Test");
+         * ```
+         */
         addComponent<T extends Component>(className: string): T;
         /**
          * @en
          * Removes a component identified by the given name or removes the component object given.