Should not allow `import.defer?.('x')`

还没有人认领这个 Issue。

### 🔎 Search Terms

"import defer"

### 🕗 Version & Regression Information

- This changed between versions ______ and _______
- This changed in commit or PR _______
- This is the behavior in every version I tried, and I reviewed the FAQ for entries about __6.0.3_______
- I was unable to test this on prior versions because _______

### ⏯ Playground Link

https://www.typescriptlang.org/play/?moduleResolution=99&target=99&ssl=3&ssc=40&pln=2&pc=1#code/JYWwDg9gTgLgBPAZlCI4HIYE8wFMDOAxlMGDOgNwBQVhEAdvvGHALxyiSwB0AJrolxQA-NwAUmHAWKlyASgpA

### 💻 Code

```ts
import.defer?.('x');
```

### 🙁 Actual behavior

No errors.

### 🙂 Expected behavior

Should not allow it as an optional call.

### Additional information about the issue

Parsers like Oxc, Yuku, SWC, Babel all reject it. I didn't read the spec, but unless they are wrong.

从提供的 TypeScript Playground 链接和 `import.defer?.('x')` 示例开始，复现 parser 的行为。跟踪 import-defer 语法的 parser 入口点，并将其处理方式与 Oxc、Yuku、SWC 和 Babel 报告的拒绝行为进行比较。完成标准是这段代码被拒绝，而不是被接受为可选调用，并且有一个覆盖该情况的回归测试。

由索引模型根据 Issue 内容生成。