https://issues.dlang.org/show_bug.cgi?id=16504
--- Comment #1 from github-bugzi...@puremagic.com --- Commits pushed to stable at https://github.com/dlang/druntime https://github.com/dlang/druntime/commit/ce6aef38adbf7f652db67bc7287a97e45c173b8f Revert "Merge pull request #1637 from WalterBright/scope-dup" This reverts commit 35cd63567095bf865e0c7b4bb8bb92945b6244a5, reversing changes made to aee373fb541dafce2769792b4430be82ef25bd2b. - fixes Issue 16504 - dup can't use storage class scope for its parameter in general https://github.com/dlang/druntime/commit/2f3f7c80d9843f4c2de05fdd2e15af71f185cf62 add unittest example for Issue 16504 - fairly synthetic example, but serves as documentation --