https://issues.dlang.org/show_bug.cgi?id=5498
--- Comment #8 from github-bugzi...@puremagic.com --- Commit pushed to master at https://github.com/D-Programming-Language/dmd https://github.com/D-Programming-Language/dmd/commit/541692caa7bcbc3b33095686ff25e1f6b02012cb More better fix for issue 5498 The root issue is in typeMerge function. --