[Issue 22662] ICE caused by forward reference

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=22662

--- Comment #2 from moonlightsentinel at disroot.org ---
The actual error message:

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Error: cannot use non-constant CTFE pointer in an initializer
`&SumType(Storage(Scope(null), Return(void)))`
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Suppressed since https://github.com/dlang/dmd/pull/8583

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