[Issue 23917] "ref" in alias this call not detected in "auto ref" return resolution

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23917

--- Comment #2 from Vladimir Panteleev <dlang-bugzilla at thecybershadow.net> ---
(Oops, ignore above comment, got my return types mixed up.)

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