[Issue 21762] object.destroy may silently fail depending on whether a member function is a template

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=21762

--- Comment #5 from moonlightsentinel at disroot.org ---
(In reply to moonlightsentinel from comment #4)
> Interestingly, the test case works if B and C are declared outside of main.

Seems like this was enabled by https://github.com/dlang/dmd/pull/5075

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