Don't think @memorize fit any case.

I saw you use first argument as key of cache.
What if the first argument is an object, like this:

```js
const a = {};
const b = {c: {}}
String(a) //"[object Object]"
String(b) //"[object Object]"
```
Besides, can you provide any benchmark tests?
I don't think it fit any case.

从 @memorize 装饰器开始，复现 issue 中的对象键示例。检查现有的测试设置，然后为这些情况添加基准测试覆盖；当冲突行为和性能权衡得到处理或明确记录后，即可视为完成。

由索引模型根据 Issue 内容生成。