[Issue 21697] Absurd limitations when passing lambda as alias parameter and bad error message

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=21697

Paul Backus <snarwin+bugzilla at gmail.com> changed:

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                 CC|                            |snarwin+bugzilla at gmail.com

--- Comment #2 from Paul Backus <snarwin+bugzilla at gmail.com> ---
Probably related to issue 21287, although in that case it's the lambda that
works and the nested function that fails.

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