[5.10] Cherry-pick Fix divergent overwrite behavior of FileManager.copyItem(at:to:) on Linux and Windows#4825

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compnerd merged 2 commits intoswiftlang:release/5.10from

gwynne:gwynne/fix-linux-copyitem-overwrite-5.10

Sep 29, 2023

Commits on Sep 23, 2023

Fix silent-overwrite behavior of FileManager.copyItem() on Linux
gwynne
committed
Fix silent-overwrite behavior of FileManager.copyItem() on Windows
gwynne
committed