Title: CherryPickToRelease0728 · Pull Request !7673 · OpenHarmony/arkcompiler_ets_frontend

1. Title: CherryPickToRelease0728
---
Cherry Pick from OpenHarmony_feature_20250702 to OpenHarmony_feature_Release_20250728
---
### **Issue**
[ICNTKT - Multiple Indexer Crash - Ambient Lowering](https://gitee.com/openharmony/arkcompiler_ets_frontend/issues/ICNTKT?from=project-issue)

### **MERGED PR **
[MERGED PR](https://gitee.com/openharmony/arkcompiler_ets_frontend/pulls/7274)

### **Reason**
Multiple Indexer Crash - Ambient Lowering
Crash occurs when we compile following ets code.

```
//// [a.tsx]
declare const React: object;

declare namespace JSX {
interface IntrinsicElements {
[k: number]: object | undefined;
[k: string]: object | undefined;
}
}

const a = (

);

const b = (

);

//// [a.js]
var a = (React.createElement("PublicFoo", null));
var b = (React.createElement("CustomPublic", null));
```

### **Description**
This PR prevents a crash in AmbientLowering.

### **Tests**
```
ninja all tests
```
**All required pre-merge tests passed. Results are available in the internal CI.**

类型	指派人员	状态
审查	@egavrin 由 CODEOWNERS 文件第 18 行指派为审查者	已完成 (1/1人)
审查	godmiaozi zhuoli72 gavin1012_hw 已审查通过徐城 Ilya Trubachev Urakov Alexandr Chernykh Sergey Vsevolod Pukhov	已完成 (1/1人)
测试	openharmony_ci 已测试通过	已完成 (1/1人)

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