[Issue 16434] dmd assertion failure in declaration.d

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=16434

--- Comment #2 from John Colvin <john.loughran.colvin at gmail.com> ---
dmd git HEAD as of a few days ago (fe0ab0df5cfe4aa9c1ec4ea140e5521767e28df5)

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