[Issue 18296] [Reg2.078.1] invalid code with coverage and copy construction

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18296

--- Comment #1 from Martin Nowak <code at dawg.eu> ---
Only occurs with PIC enabled, guess this happens as a result of
https://github.com/dlang/dmd/pull/7654 whereby coverage symbols no longer have
local linkage.

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