[Issue 17389] std.traits.hasNested fails for class with member of same type

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=17389

--- Comment #1 from Nick Treleaven <n...@geany.org> ---
Separated into its own, plus nested class references should probably be ignored
anyway:
https://github.com/dlang/phobos/pull/5385

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