std: Clean out #[deprecated] APIs

This commit cleans out a large amount of deprecated APIs from the standard
library and some of the facade crates as well, updating all users in the
compiler and in tests as it goes along.

4 files changed, 10 insertions, 11 deletions

diff --git a/src/librustc_back/fs.rs b/src/librustc_back/fs.rs
index 6d8891dd4fe..d3f3b1dad78 100644
--- a/src/librustc_back/fs.rs
+++ b/src/librustc_back/fs.rs
@@ -9,6 +9,7 @@
 // except according to those terms.
 
 use std::io;
+use std::env;
 #[allow(deprecated)] use std::old_path::{self, GenericPath};
 #[allow(deprecated)] use std::old_io;
 use std::path::{Path, PathBuf};
@@ -29,9 +30,9 @@ pub fn realpath(original: &Path) -> io::Result<PathBuf> {
 #[allow(deprecated)]
 fn old_realpath(original: &old_path::Path) -> old_io::IoResult<old_path::Path> {
     use std::old_io::fs;
-    use std::os;
     const MAX_LINKS_FOLLOWED: usize = 256;
-    let original = try!(os::getcwd()).join(original);
+    let original = old_path::Path::new(env::current_dir().unwrap()
+                                           .to_str().unwrap()).join(original);
 
     // Right now lstat on windows doesn't work quite well
     if cfg!(windows) {
diff --git a/src/librustc_back/lib.rs b/src/librustc_back/lib.rs
index fe457841e91..0814d53acd1 100644
--- a/src/librustc_back/lib.rs
+++ b/src/librustc_back/lib.rs
@@ -39,12 +39,10 @@
 #![feature(io)]
 #![feature(old_io)]
 #![feature(old_path)]
-#![feature(os)]
 #![feature(rustc_private)]
 #![feature(staged_api)]
 #![feature(rand)]
 #![feature(path_ext)]
-#![feature(std_misc)]
 #![feature(step_by)]
 #![feature(convert)]
 #![cfg_attr(test, feature(test, rand))]
diff --git a/src/librustc_back/sha2.rs b/src/librustc_back/sha2.rs
index 8f0387059e4..898f20e7451 100644
--- a/src/librustc_back/sha2.rs
+++ b/src/librustc_back/sha2.rs
@@ -14,7 +14,7 @@
 
 #![allow(deprecated)] // to_be32
 
-use std::iter::{range_step, repeat};
+use std::iter::repeat;
 use std::num::Int;
 use std::slice::bytes::{MutableByteVector, copy_memory};
 use serialize::hex::ToHex;
@@ -368,7 +368,7 @@ impl Engine256State {
 
         // Putting the message schedule inside the same loop as the round calculations allows for
         // the compiler to generate better code.
-        for t in range_step(0, 48, 8) {
+        for t in (0..48).step_by(8) {
             schedule_round!(t + 16);
             schedule_round!(t + 17);
             schedule_round!(t + 18);
@@ -388,7 +388,7 @@ impl Engine256State {
             sha2_round!(b, c, d, e, f, g, h, a, K32, t + 7);
         }
 
-        for t in range_step(48, 64, 8) {
+        for t in (48..64).step_by(8) {
             sha2_round!(a, b, c, d, e, f, g, h, K32, t);
             sha2_round!(h, a, b, c, d, e, f, g, K32, t + 1);
             sha2_round!(g, h, a, b, c, d, e, f, K32, t + 2);
diff --git a/src/librustc_back/tempdir.rs b/src/librustc_back/tempdir.rs
index d4503ae7fc9..6935499f5a0 100644
--- a/src/librustc_back/tempdir.rs
+++ b/src/librustc_back/tempdir.rs
@@ -11,7 +11,7 @@
 use std::env;
 use std::io::{self, Error, ErrorKind};
 use std::fs;
-use std::path::{self, PathBuf, AsPath};
+use std::path::{self, PathBuf, Path};
 use std::rand::{thread_rng, Rng};
 
 /// A wrapper for a path to temporary directory implementing automatic
@@ -36,10 +36,10 @@ impl TempDir {
     ///
     /// If no directory can be created, `Err` is returned.
     #[allow(deprecated)] // rand usage
-    pub fn new_in<P: AsPath + ?Sized>(tmpdir: &P, prefix: &str)
-                                      -> io::Result<TempDir> {
+    pub fn new_in<P: AsRef<Path>>(tmpdir: P, prefix: &str)
+                                  -> io::Result<TempDir> {
         let storage;
-        let mut tmpdir = tmpdir.as_path();
+        let mut tmpdir = tmpdir.as_ref();
         if !tmpdir.is_absolute() {
             let cur_dir = try!(env::current_dir());
             storage = cur_dir.join(tmpdir);