Merge Apple `std::os` extensions modules into `std::os::darwin`

The functionality available on Apple platforms are very similar, and
were duplicated for each platform.

Additionally, this fixes a warning when compiling the standard library
for tvOS, watchOS and visionOS by marking the corresponding code as
dead code.

1 files changed, 3 insertions, 20 deletions

diff --git a/library/std/src/fs/tests.rs b/library/std/src/fs/tests.rs
index 62a268facb6..f1749efdfa9 100644
--- a/library/std/src/fs/tests.rs
+++ b/library/std/src/fs/tests.rs
@@ -1638,16 +1638,8 @@ fn rename_directory() {
 
 #[test]
 fn test_file_times() {
-    #[cfg(target_os = "ios")]
-    use crate::os::ios::fs::FileTimesExt;
-    #[cfg(target_os = "macos")]
-    use crate::os::macos::fs::FileTimesExt;
-    #[cfg(target_os = "tvos")]
-    use crate::os::tvos::fs::FileTimesExt;
-    #[cfg(target_os = "visionos")]
-    use crate::os::visionos::fs::FileTimesExt;
-    #[cfg(target_os = "watchos")]
-    use crate::os::watchos::fs::FileTimesExt;
+    #[cfg(target_vendor = "apple")]
+    use crate::os::darwin::fs::FileTimesExt;
     #[cfg(windows)]
     use crate::os::windows::fs::FileTimesExt;
 
@@ -1693,16 +1685,7 @@ fn test_file_times() {
 #[test]
 #[cfg(target_vendor = "apple")]
 fn test_file_times_pre_epoch_with_nanos() {
-    #[cfg(target_os = "ios")]
-    use crate::os::ios::fs::FileTimesExt;
-    #[cfg(target_os = "macos")]
-    use crate::os::macos::fs::FileTimesExt;
-    #[cfg(target_os = "tvos")]
-    use crate::os::tvos::fs::FileTimesExt;
-    #[cfg(target_os = "visionos")]
-    use crate::os::visionos::fs::FileTimesExt;
-    #[cfg(target_os = "watchos")]
-    use crate::os::watchos::fs::FileTimesExt;
+    use crate::os::darwin::fs::FileTimesExt;
 
     let tmp = tmpdir();
     let file = File::create(tmp.join("foo")).unwrap();