https://issues.dlang.org/show_bug.cgi?id=23905

          Issue ID: 23905
           Summary: Initialization of SumType with opaque enum causes ICE
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P1
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: snarwin+bugzilla@gmail.com

As of DMD 2.103.1, the following program fails to compile:

---
import std.sumtype : SumType;

enum Foo;

void main(){
    SumType!Foo data = Foo.init; // int.init;
}
---

The error message is:

---
Error: unknown, please file report on issues.dlang.org
---

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