[Issue 15726] [REG2.068.0] forward reference error for circular classes, RefCounted

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=15726

--- Comment #8 from github-bugzilla at puremagic.com ---
Commit pushed to dmd-cxx at https://github.com/dlang/dmd

https://github.com/dlang/dmd/commit/7e9205d5185e89ac2248b159bbfdc02a12328f18
Fix backport of Issue 15726 - forward reference error for circular classes

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