In https://github.com/servo/servo/pull/26395/files#diff-3fe97584f564214ec8e7ebbf91747e03L253-R318,
we moved from `recursive checking` of dependency status to check only the
_current module_'s dependency status and its descendant dependency status and
also circular dependency status.

However, it will cause an issue.

For example, if the module dependency is like following

```
a -> b -> c -> d -> e
f -> g -> h -> c -> d -> e
```

In this example, if the d module is still under fetching but g is trying
to advance to finish. Then, it will cause a panic because module d is
g's grand-grand-grand-descendant which means it's still under fetching
and we can't instantiate module g.

Ideally, we should get rid of the checking in #26903 so, before #26903
fixed, we can just move back to the recursive checking way which will
ensure all descendants are not fetching.