project reference { "path": "" } is ignored

还没有人认领这个 Issue。

## Steps to reproduce

In every project folder I have a `./tsconfig.build.json` which my build script finds and compiles.
In one project I have no subdirectories but only flat files, so I reference "the same directory".

`./tsconfig.build.json`
```json
{
"$schema": "http://json.schemastore.org/tsconfig",
"references": [
{ "path": "" }
],
"files": [],
"include": []
}
```

The file `./tsconfig.json` contains the final compile:
```json
{
"$schema": "http://json.schemastore.org/tsconfig",
"extends": "../tsconfig_base",
"include": ["./*.ts"]
}
```

Looks silly, but I also have `./tsconfig.build.json` which have this:
```
"references": [
{ "path": "Worker/" },
{ "path": "" },
```

## Behavior with `typescript@6.0`

Compiles
```
> node_modules\.bin\tsc --build Folder/tsconfig.build.json --force --verbose
[17:36:53] Projects in this build:
* Folder/tsconfig.json
* Folder/tsconfig.build.json
...
```

## Behavior with `tsgo`

```
> node_modules\.bin\tsgo --build Folder/tsconfig.build.json --force --verbose
[05:37:22 PM] Projects in this build:
* Folder/tsconfig.build.json
...
```

When I change the file `./tsconfig.build.json` to that:
```json
{
"$schema": "http://json.schemastore.org/tsconfig",
"references": [
{ "path": "./" }
],
"files": [],
"include": []
}
```
It compiles like a charm, but still I wanted to report the compiler difference.

首先，使用所示的 tsconfig.build.json 以及 `tsc --build` 和 `tsgo --build` 命令重现差异，并比较它们的详细项目列表。跟踪每个命令如何解析 `references` 的路径值 `""` 和 `"./"`；当空路径与当前目录路径得到一致处理时，即表示完成。

由索引模型根据 Issue 内容生成。