Fix bug on debugging of FA mode · Pull Request !3195 · OpenHarmony/developtools_ace_ets2bundle

## Problem
Old fa mode project in IDE can't be debugged

## Background
 **How the `sourcefile` field in `filesInfo.txt` influences in fa mode:** 
On the one hand, it influences the stack info which runtime throws.
On the other hand, IDE uses this file path to find corresponding source map and transforms the stack info by source map.

**What's the `sourcefile` field be like in debug mode before** 
First, the sourcefile is changed to `.temp.js` extension, and be concated with this.projectConfig.aceModuleBuild which would be like "ProjectRootPath/entry/build/default/intermediates/loader_out/default/ets/MainAbility"
![输入图片说明](https://foruda.gitee.com/images/1711787229627273299/17108432_12897337.png "屏幕截图")

Then, the sourcefile is changed to `_.js` extension. So the final path would be like "ProjectRootPath/entry/build/default/intermediates/loader_out/default/ets/MainAbility/pages/index_.js"
![](https://foruda.gitee.com/images/1711787317683353539/b06fe218_12897337.png "屏幕截图")

## Description
 **How this problem happens:** 
In 2023/11/28, I modify the `sourcefile` field in release mode and let it be the cache file path  to generate proper stack info.
In 2024/02/05, Stack info in debug mode needs to be modified as well and I simply remove the `isDebug`
judgement. However, unlike stage mode, the cache path of fa mode is generated differently between release and debug. This leads to a wrong path and IDE could not find the sourcemap.

## Test
![输入图片说明](https://foruda.gitee.com/images/1711796437688176011/984b8888_12897337.png "屏幕截图")

## Issue
https://gitee.com/openharmony/developtools_ace_ets2bundle/issues/I9BCLW

类型	指派人员	状态
审查	chengongping lihong 已审查通过 houhaoyu	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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