Add IntoIterator impl for [T; N] (arrays by value)

Author: LukasKalbertodt

library/core/src/array/mod.rs

@@ -155,6 +155,16 @@ impl<T: fmt::Debug, const N: usize> fmt::Debug for [T; N] {
     }
 }
 
+#[stable(feature = "array_into_iter_impl", since = "1.53.0")]
+impl<T, const N: usize> IntoIterator for [T; N] {
+    type Item = T;
+    type IntoIter = IntoIter<T, N>;
+
+    fn into_iter(self) -> Self::IntoIter {
+        IntoIter::new(self)
+    }
+}
+
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<'a, T, const N: usize> IntoIterator for &'a [T; N] {
     type Item = &'a T;