[Issue 18091] "Error instantiating" cumulativeFold when passing a function inside another function

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18091

berni44 <bugzilla at d-ecke.de> changed:

           What    |Removed                     |Added
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                 CC|                            |bugzilla at d-ecke.de

--- Comment #2 from berni44 <bugzilla at d-ecke.de> ---
With the help of dustmite I got this down to:

template foo(T...)
{
    static void bar()
    {
        T[0];
    }
}

void main()
{
    void t() {}

    foo!t();
}

Don't know, if this helps anybody... The variadic argument seems to matter
somehow.

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