Diagnostic code 8030 being incorrectly generated using JSDoc `@type` on a function.

### 🔎 Search Terms

Diagnostic 8030 is being generated incorrectly when using JSDoc `@type` on a method when the type is being referred to from an interface. This is using the new `tsc` LSP - version 7.0.2.

### 🕗 Version & Regression Information

- This changed between versions 7.0.0-dev.260707.2 and 7.0.2.
- This is the behavior in every version I tried, and I reviewed the FAQ for entries about new native issues being transferred into the main typescript repo.

### ⏯ Playground Link

_No response_

### 💻 Code

```ts
// types.ts
interface Example {
method (): number;
}
export {};

// code.js
const exampleFns = {
/**
* @type {Example['method']} // A JSDoc `@type` tag on a function must have a signature with the correct number of arguments.
*/
method () {
return Math.random();
}
};
```

### 🙁 Actual behavior

in this example, the diagnostic and LSP info does not tell the user that typescript is internally suffixing `| undefined` to the type. As such wrapping the type in `NonNullable` removes the error diagnostic, I do not believe this to be intended behaviour as previous iterations the golang native LSP `tsgo` (7.0.0-dev.260707.2) did not produce this diagnostic, nor did previous versions of typescript.

### 🙂 Expected behavior

The type should be properly referenced with no additional suffixing of types, as it used to.

### Additional information about the issue

_No response_

首先，使用报告的 TypeScript 7.0.2 和更早的 7.0.0-dev.260707.2 版本，通过 types.ts 和 code.js 重现该诊断。跟踪对 Example['method'] 的 JSDoc @type 引用是如何解析的，以及为什么会添加 | undefined。完成的标准是：有效的方法类型不再产生诊断 8030，并且此示例具有回归测试覆盖。

由索引模型根据 Issue 内容生成。