std.fs.Dir.makeOpenPath: optimize when path already exists

Uses a single NtCreateFile syscall on windows.

Closes #12474. Thanks to @joedavis and @matu3ba.
f6a6cdbba3Qusai Hroub committed on 10/19/2023, 3:36:03 AM· committed by Andrew Kelleyparent1bbe521
2 files changedLine totals unavailable