[Issue 13423] Allow covariant assignment of lambda to delegate variable

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=13423

--- Comment #2 from Kenji Hara <k.hara.pg at gmail.com> ---
(In reply to hsteoh from comment #0)
> Code:
> ------
> void main() {
>         void delegate(char) dg = (dchar) {};
> }
> ------

There is a parameter type mismatching 'char' and 'dchar'.

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