It's an ICE on bad code.
File c.d :
```
struct {
enum E = 1;
}
```
File a.d :
```
struct C {
import c;
}
struct B(T...) {
import c;
}
B!1 bbb;
```
Compiling a.d crashes DMD 2.071.
> dmd a.d
c.d(1): Error: anonymous struct can only be a part of an aggregate, not module c
[1] 2913 segmentation fault dmd a.d
Comment #1 by razvan.nitu1305 — 2018-06-13T10:09:08Z
Cannot reproduce on latest master (DMD64 D Compiler v2.079.0) on ubuntu. Closing as WORKSFORME. Please reopen if ice is persistent.