Rollup merge of rust-lang#23329 - jbcrail:rm-syntax-highlight, r=sanxiyn

 As suggested by @steveklabnik in rust-lang#23254, I removed the redundant Rust syntax highlighting from the documentation.

Author: Manishearth

Diff for: src/liballoc/arc.rs

@@ -94,7 +94,7 @@ use heap::deallocate;
 /// With simple pipes, without `Arc`, a copy would have to be made for each
 /// task.
 ///
-/// ```rust
+/// ```
 /// use std::sync::Arc;
 /// use std::thread;
 ///

Diff for: src/liballoc/boxed.rs

@@ -64,7 +64,7 @@ use core::raw::TraitObject;
 ///
 /// The following two examples are equivalent:
 ///
-/// ```rust
+/// ```
 /// #![feature(box_syntax)]
 /// use std::boxed::HEAP;
 ///

Diff for: src/libcollections/bit.rs

@@ -133,7 +133,7 @@ static FALSE: bool = false;
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// use std::collections::BitVec;
 ///
 /// let mut bv = BitVec::from_elem(10, false);

Diff for: src/libcollections/borrow.rs

@@ -129,7 +129,7 @@ impl<T> ToOwned for T where T: Clone {
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// use std::borrow::Cow;
 ///
 /// fn abs_all(input: &mut Cow<[i32]>) {

Diff for: src/libcollections/fmt.rs

@@ -422,7 +422,7 @@ use string;
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// use std::fmt;
 ///
 /// let s = fmt::format(format_args!("Hello, {}!", "world"));

Diff for: src/libcollections/slice.rs

@@ -136,7 +136,7 @@ pub trait SliceExt {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// let mut v = [5, 4, 1, 3, 2];
     /// v.sort_by(|a, b| a.cmp(b));
     /// assert!(v == [1, 2, 3, 4, 5]);
@@ -162,7 +162,7 @@ pub trait SliceExt {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// let mut a = [1, 2, 3, 4, 5];
     /// let b = vec![6, 7, 8];
     /// let num_moved = a.move_from(b, 0, 3);
@@ -284,7 +284,7 @@ pub trait SliceExt {
     /// Print the adjacent pairs of a slice (i.e. `[1,2]`, `[2,3]`,
     /// `[3,4]`):
     ///
-    /// ```rust
+    /// ```
     /// let v = &[1, 2, 3, 4];
     /// for win in v.windows(2) {
     ///     println!("{:?}", win);
@@ -307,7 +307,7 @@ pub trait SliceExt {
     /// Print the slice two elements at a time (i.e. `[1,2]`,
     /// `[3,4]`, `[5]`):
     ///
-    /// ```rust
+    /// ```
     /// let v = &[1, 2, 3, 4, 5];
     /// for win in v.chunks(2) {
     ///     println!("{:?}", win);
@@ -398,7 +398,7 @@ pub trait SliceExt {
     /// uniquely determined position; the second and third are not
     /// found; the fourth could match any position in `[1,4]`.
     ///
-    /// ```rust
+    /// ```
     /// let s = [0, 1, 1, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55];
     /// let s = s.as_slice();
     ///
@@ -533,7 +533,7 @@ pub trait SliceExt {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// let mut v = ["a", "b", "c", "d"];
     /// v.swap(1, 3);
     /// assert!(v == ["a", "d", "c", "b"]);
@@ -553,7 +553,7 @@ pub trait SliceExt {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// let mut v = [1, 2, 3, 4, 5, 6];
     ///
     /// // scoped to restrict the lifetime of the borrows
@@ -582,7 +582,7 @@ pub trait SliceExt {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// let mut v = [1, 2, 3];
     /// v.reverse();
     /// assert!(v == [3, 2, 1]);
@@ -614,7 +614,7 @@ pub trait SliceExt {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// let v = [1, 2, 3];
     /// let mut perms = v.permutations();
     ///
@@ -625,7 +625,7 @@ pub trait SliceExt {
     ///
     /// Iterating through permutations one by one.
     ///
-    /// ```rust
+    /// ```
     /// let v = [1, 2, 3];
     /// let mut perms = v.permutations();
     ///
@@ -642,7 +642,7 @@ pub trait SliceExt {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// let mut dst = [0, 0, 0];
     /// let src = [1, 2];
     ///
@@ -662,7 +662,7 @@ pub trait SliceExt {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// let mut v = [-5, 4, 1, -3, 2];
     ///
     /// v.sort();
@@ -684,7 +684,7 @@ pub trait SliceExt {
     /// uniquely determined position; the second and third are not
     /// found; the fourth could match any position in `[1,4]`.
     ///
-    /// ```rust
+    /// ```
     /// let s = [0, 1, 1, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55];
     /// let s = s.as_slice();
     ///
@@ -711,7 +711,7 @@ pub trait SliceExt {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// let v: &mut [_] = &mut [0, 1, 2];
     /// v.next_permutation();
     /// let b: &mut [_] = &mut [0, 2, 1];
@@ -731,7 +731,7 @@ pub trait SliceExt {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// let v: &mut [_] = &mut [1, 0, 2];
     /// v.prev_permutation();
     /// let b: &mut [_] = &mut [0, 2, 1];

Diff for: src/libcollections/str.rs

@@ -911,7 +911,7 @@ pub trait StrExt: Index<RangeFull, Output = str> {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// assert!("banana".ends_with("nana"));
     /// ```
     #[stable(feature = "rust1", since = "1.0.0")]

Diff for: src/libcollections/string.rs

@@ -138,7 +138,7 @@ impl String {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// use std::str::Utf8Error;
     ///
     /// let hello_vec = vec![104, 101, 108, 108, 111];
@@ -164,7 +164,7 @@ impl String {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// let input = b"Hello \xF0\x90\x80World";
     /// let output = String::from_utf8_lossy(input);
     /// assert_eq!(output, "Hello \u{FFFD}World");
@@ -296,7 +296,7 @@ impl String {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// // 𝄞music
     /// let mut v = &mut [0xD834, 0xDD1E, 0x006d, 0x0075,
     ///                   0x0073, 0x0069, 0x0063];
@@ -324,7 +324,7 @@ impl String {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// // 𝄞mus<invalid>ic<invalid>
     /// let v = &[0xD834, 0xDD1E, 0x006d, 0x0075,
     ///           0x0073, 0xDD1E, 0x0069, 0x0063,

Diff for: src/libcollections/vec.rs

@@ -633,7 +633,7 @@ impl<T> Vec<T> {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// let mut vec = vec!(1, 2);
     /// vec.push(3);
     /// assert_eq!(vec, [1, 2, 3]);
@@ -671,7 +671,7 @@ impl<T> Vec<T> {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// let mut vec = vec![1, 2, 3];
     /// assert_eq!(vec.pop(), Some(3));
     /// assert_eq!(vec, [1, 2]);

Diff for: src/libcollections/vec_deque.rs

@@ -201,7 +201,7 @@ impl<T> VecDeque<T> {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// use std::collections::VecDeque;
     ///
     /// let mut buf = VecDeque::new();
@@ -224,7 +224,7 @@ impl<T> VecDeque<T> {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// use std::collections::VecDeque;
     ///
     /// let mut buf = VecDeque::new();
@@ -258,7 +258,7 @@ impl<T> VecDeque<T> {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// use std::collections::VecDeque;
     ///
     /// let mut buf = VecDeque::new();
@@ -513,7 +513,7 @@ impl<T> VecDeque<T> {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// use std::collections::VecDeque;
     ///
     /// let mut buf = VecDeque::new();
@@ -536,7 +536,7 @@ impl<T> VecDeque<T> {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// use std::collections::VecDeque;
     ///
     /// let mut buf = VecDeque::new();
@@ -824,7 +824,7 @@ impl<T> VecDeque<T> {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// use std::collections::VecDeque;
     ///
     /// let mut buf = VecDeque::new();
@@ -849,7 +849,7 @@ impl<T> VecDeque<T> {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// use std::collections::VecDeque;
     ///
     /// let mut buf = VecDeque::new();
@@ -949,7 +949,7 @@ impl<T> VecDeque<T> {
     /// Panics if `i` is greater than ringbuf's length
     ///
     /// # Examples
-    /// ```rust
+    /// ```
     /// use std::collections::VecDeque;
     ///
     /// let mut buf = VecDeque::new();
@@ -1151,7 +1151,7 @@ impl<T> VecDeque<T> {
     /// Returns `None` if `i` is out of bounds.
     ///
     /// # Examples
-    /// ```rust
+    /// ```
     /// use std::collections::VecDeque;
     ///
     /// let mut buf = VecDeque::new();

Diff for: src/libcore/macros.rs

@@ -216,7 +216,7 @@ macro_rules! writeln {
 ///
 /// Match arms:
 ///
-/// ```rust
+/// ```
 /// fn foo(x: Option<int>) {
 ///     match x {
 ///         Some(n) if n >= 0 => println!("Some(Non-negative)"),
@@ -229,7 +229,7 @@ macro_rules! writeln {
 ///
 /// Iterators:
 ///
-/// ```rust
+/// ```
 /// fn divide_by_three(x: u32) -> u32 { // one of the poorest implementations of x/3
 ///     for i in std::iter::count(0, 1) {
 ///         if 3*i < i { panic!("u32 overflow"); }

Diff for: src/libcore/marker.rs

@@ -310,15 +310,15 @@ impl<T:?Sized> MarkerTrait for T { }
 ///
 /// Therefore, we can model a method like this as follows:
 ///
-/// ```rust
+/// ```
 /// use std::marker::PhantomFn;
 /// trait Even : PhantomFn<Self> { }
 /// ```
 ///
 /// Another equivalent, but clearer, option would be to use
 /// `MarkerTrait`:
 ///
-/// ```rust
+/// ```
 /// use std::marker::MarkerTrait;
 /// trait Even : MarkerTrait { }
 /// ```

Diff for: src/libcore/mem.rs

@@ -251,7 +251,7 @@ pub fn swap<T>(x: &mut T, y: &mut T) {
 /// `self.buf`. But `replace` can be used to disassociate the original value of `self.buf` from
 /// `self`, allowing it to be returned:
 ///
-/// ```rust
+/// ```
 /// use std::mem;
 /// # struct Buffer<T> { buf: Vec<T> }
 /// impl<T> Buffer<T> {

Diff for: src/libcore/num/f32.rs

@@ -281,7 +281,7 @@ impl Float for f32 {
 
     /// The fractional part of the number, satisfying:
     ///
-    /// ```rust
+    /// ```
     /// use core::num::Float;
     ///
     /// let x = 1.65f32;

Diff for: src/libcore/num/f64.rs

@@ -288,7 +288,7 @@ impl Float for f64 {
 
     /// The fractional part of the number, satisfying:
     ///
-    /// ```rust
+    /// ```
     /// use core::num::Float;
     ///
     /// let x = 1.65f64;