[Issue 18868] Separate compilation generates two static this functions, runs it twice

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18868

--- Comment #6 from Atila Neves <atila.neves at gmail.com> ---
I forgot to mention that the issue here is the same issue as before with the
unittest names - counters can't and won't work, because the number will vary
depending on how the compiler is invoked.

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