https://issues.dlang.org/show_bug.cgi?id=21060

          Issue ID: 21060
           Summary: ICE in semantic, at d/dmd/dstruct.c:1224
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: ibuclaw@gdcproject.org

Seen in the dmd-cxx branch, maybe it's been fixed by same PR as issue 20530 and issue 20537.

bug.d
```
struct S
{
    void print()
    {
        import pkga;
        import pkgb;
    }
}
```

pkga/package.d
```
import pkgc;
```

pkgb/package.d
```
module pkgd;

struct P
{
}
```

pkgc/package.d
```
import pkgd;
```

pkgd/package.d
```
module pkgd;

struct P
{
}
```

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