[Issue 18646] Recursive template expansion incorrectly reported for certain templated classes

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18646

--- Comment #1 from Ontonator <publicnator at gmail.com> ---
It also should be noted that the aliases don't have to be aliases. Any
reference to the class works (e.g. variable with type, method with parameter or
return type, etc.).

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