convert overload function into one function · Pull Request !9039 · OpenHarmony/arkcompiler_runtime_core

1. convert overload function into one function
---
### **Issue**
[新需求]: convert overload function into one function
https://gitee.com/openharmony/arkcompiler_runtime_core/issues/ICX183

### **Reason**
Arkts1.2当前不支持函数重载,Arkts1.1中函数重载的场景中，需要将同名的函数合并为一个方法。

### **Description**
Arkts1.2当前不支持函数重载,Arkts1.1中函数重载的场景中，需要将同名的函数合并为一个方法。
对ArkTS1.1中函数函数重载的场景，按照如下原则进行转换：
1.参数的不同类型，转换后合并成一个union类型，例如：
```
export declare class Calculator {
    add(a: number): number;
    add(a: string): number;
    add(numbers: number[]): number; 
}
```
被转换为:
```
export declare class Calculator {
    add(param0: number | number[] | string): number;
}
```
2.同名方法中多余的参数，转换后作为可选参数，例如：
```
export declare class Calculator {
    add(a: number, b: number): number;
    add(a: number, b: number, c: number): number;
    add(numbers: number[]): number; 
}
```
被转换为：
```
export declare class Calculator {
    add(param0: number | number[], param1?: number, param2?: number): number;
}
```
3.同名方法不同的返回类型，转换后合并成一个union类型，例如:
```
export declare class Calculator {
    add(a: number, b: number): number;
    add(a: number, b: number, c: number): number;
    add(numbers: number[]): string; 
}
```
被转换为：
```
export declare class Calculator {
    add(param0: number | number[], param1?: number, param2?: number): number | string;
}
```
### **Tests**
```
ninja all tests
```
![test-case](https://foruda.gitee.com/images/1757381779417500078/2f8267fc_6583125.png "test-case")
**All required pre-merge tests passed. Results are available in the internal CI.**

### **[Test Items](https://gitee.com/openharmony/arkcompiler_runtime_core/wikis)**

##### **1. Runtime Core UT(Release/Debug)**
- [x] Passed
- [ ] Not involved, no verification needed

1. Host

2. Device

##### **2. Verifier Test**
- [ ] Passed
- [x] Not involved, no verification needed

##### **3. Fuzz Compilation Test**
- [ ] Passed
- [x] Not involved, no verification needed

##### **4. 64-bit RK Compilation**
- [ ] Passed
- [x] Not involved, no verification needed

##### **5. Compile Mac Platform SDK**
- [ ] Passed
- [x] Not involved, no verification needed

##### **6. Command/abc format modification self-check, please contact the email below, synchronize to the relevant field**
**Important: For modifications involving the abc2program, libpandafile and isa directories in the runtime_core repository, you must provide a compiled hap package for the helloworld project to the corresponding domain and contact the email address below.**
- [ ] Involved, already synchronized
- [x] Not involved

**Email:** wutao185@huawei.com

##### **7. Panda_Guard version number change self-check**
- [ ] Involved, **Please contact email:** wutao185@huawei.com
- [x] Not involved

##### **8. Compatibility Testing (for instruction generation or file format changes)**
1. Minor Version Compatibility Test 
- [ ] Version number added
- [ ] Passed
- [x] Not applicable, no need to verify

2. Major Version Compatibility Test 
- [ ] Passed
- [x] Not applicable, no need to verify

3. es2abc Version Compatibility Test 
**Note: If the PR involves changes to version control test cases, you must also check its impact on other branches and confirm whether updates are needed in those branches.**
- [ ] Affected — Changes impact API/bytecode version and need to be synced to other branches
- [ ] Affected — Changes impact API/bytecode version but do not need to be synced to other branches
- [x] Not affected — Changes do not involve API/bytecode version

类型	指派人员	状态
审查	@egavrin 由 CODEOWNERS 文件第 18 行指派为审查者	进行中 (0/1人)
审查	godmiaozi weng-changcheng dingding ctw-ian peijiajun Ishin Pavel Vyacheslav Cherkashin	进行中 (0/1人)
测试	openharmony_ci 已测试通过	已完成 (1/1人)

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