Deprecation error message reporting method type as deprecated instead of method name

### 🔎 Search Terms

deprecated type

### 🕗 Version & Regression Information

- This is the behavior in every version I tried, and I reviewed the FAQ for entries about _________

### ⏯ Playground Link

https://www.typescriptlang.org/play/?ts=5.9.2#code/JYWwDg9gTgLgBAbzgLzgXzgMyhEcBEyEAJvgNwBQFAxhAHYDO8MDtdmwA5gEoCGA7gGVqACwCmIXnAC8KAHQQARgCsx1GAAoEFOLri1wwADZioAeTAxg9BgC55vOgE8NASgppXcsLwZMROACunCJulEA

### 💻 Code

```ts
import { z } from "zod";

const tsconfigRawSchema = z.object({
compilerOptions: z.any()
}).passthrough();
```

### 🙁 Actual behavior

Hover passthrough:

```
'(): ZodObject<{ compilerOptions: ZodAny; }, $loose>' is deprecated.
```

### 🙂 Expected behavior

```
'passthrough()' is deprecated.
```

or something like that.

### Additional information about the issue

_No response_

从链接的 TypeScript Playground 复现示例以及 issue 中展示的 `passthrough()` 调用开始，然后追踪其已弃用悬停文本的生成方式。完成的标准是悬停提示报告 `passthrough()`，而不是生成的方法类型，同时保留预期的弃用行为。

由索引模型根据 Issue 内容生成。