[Issue 23105] `__trait(getMember)` and `mixin()` of the same code as a string behaves differently

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23105

--- Comment #1 from Basile-z <b2.temp at gmx.com> ---
note: the module is the automatic import of object.d so this test case cant be
tested with -betterC.

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