[Issue 18866] Overload from opDispatch ignored in WithStatement

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18866

--- Comment #6 from Simen Kjaeraas <simen.kjaras at gmail.com> ---
(In reply to John Hall from comment #5)

You're right that a new global function will shadow opDispatch, but with the
fix the exact opposite problem will appear, so it's not all that simple.

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