[Issue 8698] Forward reference error with interfaces

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=8698

--- Comment #3 from github-bugzilla at puremagic.com ---
Commit pushed to master at https://github.com/D-Programming-Language/dmd

https://github.com/D-Programming-Language/dmd/commit/fdbfd70aa1a3a991ba620a5855f9aa0b489f2905
Move issue 8698 test case to compilable/testfwdref.d

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