"Can only extend structures" typing order issue with `--macro include`

This is what I got when isolating the weird OS-dependent `language-server-protocol-haxe` CI failure I was debugging with @nadako yesterday.

`source/A.hx`:

```haxe
import B;

typedef A = {}
```

`source/B.hx`:

```haxe
import A;

typedef B = A & {}

typedef C = {
var ?b:B;
}
```

`build.hxml`

```hxml
-cp source
--macro include("", true, null, ["source"])
```

```
>haxe build.hxml
source/B.hx:3: characters 13-19 : Can only extend structures
```

---

Some very strange effects here:

- doesn't reproduce if the `?` is removed from `typedef C` (?!)
- if `A` is renamed to `B` and `B` to `A`, it also doesn't reproduce