See rust-lang#47115 (comment)
and rust-lang#47115 (comment)

…. builds.

This patch adds a few improvements to how the build system finds
LLVM's FileCheck program.

* On Fedora, the system LLVM installs FileCheck in the "llvm"
  subdirectory of the LLVM libdir.  This patch teaches the build
  system to look there.

* This adds a configure option to specify which llvm-config executable
  to use.  This is handy on systems that can parallel install multiple
  versions of LLVM; for example I can now:

    ./configure --llvm-config=/bin/llvm-config-5.0-64

  ... to build against LLVM 5, rather than whatever the default
  llvm-config might be.

* Finally, this adds a configure- and config.toml- option to set the
  path to FileCheck.  This is handy when building against an LLVM
  where FileCheck was not installed.  This happens on compatibility
  installs of LLVM on Fedora.

…lutions

Derive helpers conflict currently conflict with anything else, so if some resolution from a single import appears later, it will result in error anyway

…t, r=frewsxcv

Add doc for impl From in char_convert

As part of issue rust-lang#51430 (cc @skade).

The impl is very simple, let me know if we need to go into any details.

Introduce the partition_dedup/by/by_key methods for slices

This PR propose to add three methods to the slice type, the `partition_dedup`, `partition_dedup_by` and `partition_dedup_by_key`. The two other methods are based on `slice::partition_dedup_by`.

These methods take a mutable slice, deduplicates it and moves all duplicates to the end of it, returning two mutable slices, the first containing the deduplicated elements and the second all the duplicates unordered.

```rust
let mut slice = [1, 2, 2, 3, 3, 2];

let (dedup, duplicates) = slice.partition_dedup();

assert_eq!(dedup, [1, 2, 3, 2]);
assert_eq!(duplicates, [3, 2]);
```

The benefits of adding these methods is that it is now possible to:
  - deduplicate a slice without having to allocate and possibly clone elements on the heap, really useful for embedded stuff that can't allocate for example.
  - not loose duplicate elements, because, when using `Vec::dedup`, duplicates elements are dropped. These methods add more flexibillity to the user.

Note that this is near a copy/paste of the `Vec::dedup_by` function, once this method is stable the goal is to replace the algorithm in `Vec` by the following.

```rust
pub fn Vec::dedup_by<F>(&mut self, same_bucket: F)
    where F: FnMut(&mut T, &mut T) -> bool
{
    let (dedup, _) = self.as_mut_slice().partition_dedup_by(same_bucket);
    let len = dedup.len();
    self.truncate(len);
}
```

…isdreavus

Search box

Follow up of rust-lang#54244.

r? @QuietMisdreavus

<img width="1440" alt="screen shot 2018-09-16 at 21 23 05" src="https://user-images.githubusercontent.com/3050060/45600056-cbf93380-b9f6-11e8-904a-d76ddbc5ed69.png">

… r=QuietMisdreavus

Reduce code block sides padding

Fixes rust-lang#42013.

<img width="1440" alt="screen shot 2018-09-19 at 22 58 32" src="https://user-images.githubusercontent.com/3050060/45781266-c6525680-bc5f-11e8-8eb0-98fc4c22a96e.png">

r? @QuietMisdreavus

The project moved under the Mozilla umbrella

resolve: Do not block derive helper resolutions on single import resolutions

Derive helpers currently conflict with anything else, so if some resolution from a single import appears later, it will result in error anyway.

Fixes rust-lang#54471 (stable-to-beta regression)

r? @ghost

Fixed three small typos.

…r=alexcrichton

aarch64-pc-windows-msvc: Don't link libpanic_unwind to libtest.

This implements the suggestion from rust-lang#54190 (comment) in order to unbreak bootstrapping for the `aarch64-pc-windows-msvc` target. With this applied and using MSVC 15.8.3 for linking the bootstrap actually works and I can cross-compile a hello-world program.

r? @alexcrichton

Rename slice::exact_chunks() to slice::chunks_exact()

See rust-lang#47115 (comment)
and rust-lang#47115 (comment)

…tMisdreavus

Fix js error

r? @QuietMisdreavus

…nerics-for-incr-comp, r=alexcrichton

incr.comp.: Don't automatically enable -Zshare-generics for incr. comp. builds.

So far the compiler would automatically enable sharing of monomorphizations for incremental builds. That was OK because without (Thin)LTO this could have very little impact on the runtime performance of the generated code. However, since rust-lang#53673, ThinLTO and incr. comp. can be combined, so the trade-off is not as clear anymore.

This PR removes the automatic tie between the two options. Whether monomorphizations are shared between crates or not now _only_ depends on the optimization level.

r? @alexcrichton

Improvements to finding LLVM's FileCheck

This patch adds a few improvements to how the build system finds
LLVM's FileCheck program.

* On Fedora, the system LLVM installs FileCheck in the "llvm"
  subdirectory of the LLVM libdir.  This patch teaches the build
  system to look there.

* This adds a configure option to specify which llvm-config executable
  to use.  This is handy on systems that can parallel install multiple
  versions of LLVM; for example I can now:

    ./configure --llvm-config=/bin/llvm-config-5.0-64

  ... to build against LLVM 5, rather than whatever the default
  llvm-config might be.

* Finally, this adds a configure- and config.toml- option to set the
  path to FileCheck.  This is handy when building against an LLVM
  where FileCheck was not installed.  This happens on compatibility
  installs of LLVM on Fedora.