std: Stabilize APIs for the 1.16.0 release

This commit applies the stabilization/deprecations of the 1.16.0 release, as
tracked by the rust-lang/rust issue tracker and the final-comment-period tag.

The following APIs were stabilized:

* `VecDeque::truncate`
* `VecDeque::resize`
* `String::insert_str`
* `Duration::checked_{add,sub,div,mul}`
* `str::replacen`
* `SocketAddr::is_ipv{4,6}`
* `IpAddr::is_ipv{4,6}`
* `str::repeat`
* `Vec::dedup_by`
* `Vec::dedup_by_key`
* `Result::unwrap_or_default`
* `<*const T>::wrapping_offset`
* `<*mut T>::wrapping_offset`
* `CommandExt::creation_flags` (on Windows)
* `File::set_permissions`
* `String::split_off`

The following APIs were deprecated

* `EnumSet` - replaced with other ecosystem abstractions, long since unstable

Closes #27788
Closes #35553
Closes #35774
Closes #36436
Closes #36949
Closes #37079
Closes #37087
Closes #37516
Closes #37827
Closes #37916
Closes #37966
Closes #38080

2 files changed, 4 insertions, 12 deletions

diff --git a/src/libstd/net/addr.rs b/src/libstd/net/addr.rs
index d186a53311d..751878c687c 100644
--- a/src/libstd/net/addr.rs
+++ b/src/libstd/net/addr.rs
@@ -148,8 +148,6 @@ impl SocketAddr {
     /// # Examples
     ///
     /// ```
-    /// #![feature(sockaddr_checker)]
-    ///
     /// use std::net::{IpAddr, Ipv4Addr, SocketAddr};
     ///
     /// fn main() {
@@ -158,7 +156,7 @@ impl SocketAddr {
     ///     assert_eq!(socket.is_ipv6(), false);
     /// }
     /// ```
-    #[unstable(feature = "sockaddr_checker", issue = "36949")]
+    #[stable(feature = "sockaddr_checker", since = "1.16.0")]
     pub fn is_ipv4(&self) -> bool {
         match *self {
             SocketAddr::V4(_) => true,
@@ -172,8 +170,6 @@ impl SocketAddr {
     /// # Examples
     ///
     /// ```
-    /// #![feature(sockaddr_checker)]
-    ///
     /// use std::net::{IpAddr, Ipv6Addr, SocketAddr};
     ///
     /// fn main() {
@@ -183,7 +179,7 @@ impl SocketAddr {
     ///     assert_eq!(socket.is_ipv6(), true);
     /// }
     /// ```
-    #[unstable(feature = "sockaddr_checker", issue = "36949")]
+    #[stable(feature = "sockaddr_checker", since = "1.16.0")]
     pub fn is_ipv6(&self) -> bool {
         match *self {
             SocketAddr::V4(_) => false,
diff --git a/src/libstd/net/ip.rs b/src/libstd/net/ip.rs
index 05e3d38b17e..7803cf728f2 100644
--- a/src/libstd/net/ip.rs
+++ b/src/libstd/net/ip.rs
@@ -196,8 +196,6 @@ impl IpAddr {
     /// # Examples
     ///
     /// ```
-    /// #![feature(ipaddr_checker)]
-    ///
     /// use std::net::{IpAddr, Ipv4Addr, Ipv6Addr};
     ///
     /// fn main() {
@@ -206,7 +204,7 @@ impl IpAddr {
     ///                false);
     /// }
     /// ```
-    #[unstable(feature = "ipaddr_checker", issue = "36949")]
+    #[stable(feature = "ipaddr_checker", since = "1.16.0")]
     pub fn is_ipv4(&self) -> bool {
         match *self {
             IpAddr::V4(_) => true,
@@ -219,8 +217,6 @@ impl IpAddr {
     /// # Examples
     ///
     /// ```
-    /// #![feature(ipaddr_checker)]
-    ///
     /// use std::net::{IpAddr, Ipv4Addr, Ipv6Addr};
     ///
     /// fn main() {
@@ -229,7 +225,7 @@ impl IpAddr {
     ///                true);
     /// }
     /// ```
-    #[unstable(feature = "ipaddr_checker", issue = "36949")]
+    #[stable(feature = "ipaddr_checker", since = "1.16.0")]
     pub fn is_ipv6(&self) -> bool {
         match *self {
             IpAddr::V4(_) => false,