A few improvements to the slice docs.

[frewsxcv]

No description provided.

[frewsxcv]

r? @GuillaumeGomez

[GuillaumeGomez]

failures:

---- slice::[T]::ends_with_1 stdout ----
	error[E0282]: unable to infer enough type information about `T`
 --> <anon>:7:11
  |
7 | assert!(v.ends_with(&[]));
  |           ^^^^^^^^^ cannot infer type for `T`
  |
  = note: type annotations or generic parameter binding required

error: aborting due to previous error(s)

thread 'slice::[T]::ends_with_1' panicked at 'Box<Any>', /checkout/src/librustc/session/mod.rs:203
note: Run with `RUST_BACKTRACE=1` for a backtrace.

---- slice::[T]::iter_mut_0 stdout ----
	error[E0277]: the trait bound `&mut [{integer}; 3]: std::cmp::PartialEq<[{integer}; 3]>` is not satisfied
 --> <anon>:8:1
  |
8 | assert_eq!(x, [3, 4, 6]);
  | ^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::cmp::PartialEq<[{integer}; 3]>` is not implemented for `&mut [{integer}; 3]`
  |
  = help: the following implementations were found:
            <[A] as std::cmp::PartialEq<[B]>>
            <[A; 0] as std::cmp::PartialEq<[B; 0]>>
            <[B] as std::cmp::PartialEq<[A; 0]>>
            <[A; 0] as std::cmp::PartialEq<[B]>>
          and 228 others
  = note: this error originates in a macro outside of the current crate

error: aborting due to previous error(s)

thread 'slice::[T]::iter_mut_0' panicked at 'Box<Any>', /checkout/src/librustc/session/mod.rs:203

---- slice::[T]::starts_with_1 stdout ----
	error[E0282]: unable to infer enough type information about `T`
 --> <anon>:7:11
  |
7 | assert!(v.starts_with(&[]));
  |           ^^^^^^^^^^^ cannot infer type for `T`
  |
  = note: type annotations or generic parameter binding required

error: aborting due to previous error(s)

thread 'slice::[T]::starts_with_1' panicked at 'Box<Any>', /checkout/src/librustc/session/mod.rs:203

Once fixed, can you squash your commits please? (Otherwise nothing to say, good job!)

[GuillaumeGomez]

Thanks!

@bors: r+ rollup

[bors]

📌 Commit 81acd48 has been approved by GuillaumeGomez

[GuillaumeGomez]

Still failing. r=me once tests fixed.

@bors: r-

[frewsxcv]

@bors r=GuillaumeGomez

[bors]

📌 Commit 745bffd has been approved by GuillaumeGomez

[frewsxcv]

@bors rollup

[alexcrichton]

Oh hm looks like this PR was issued from the rust-lang/rust repo and was auto-closed when I deleted that branch. @frewsxcv could you re-send the PR from your own repo?

[frewsxcv]

Oh my bad, accidentally pushed to origin.