Because of changes to how Rust acquires randomness HashMap is not
guaranteed to be DoS resistant. This commit reflects these changes in
the docs themselves and provides an alternative method to creating
a hash that is resistant if needed.

Added some extra code to check for the appropriate ending for numbers ==
1 vs. not 1 in error messages.

Added an extra test so that the plural suffix is seen and exercised.

Add the unstable `:` colon and `<-` inplace operators.

- Fix note message, fix tests.

When using Point { x: 0, y: 0 } and showing pattern matching decomposing
x and y individually its hard to understand. By using a different value
for x and a different value for y it is more clear.

Part of rust-lang#35233
Fixes rust-lang#35184

Provide a cleaner documentation for 'write!'

Hello!

This is my attempt to fix rust-lang#35110

Any feedback is more than welcome!

Cheers!

Ignore VS Code settings directory

r? @steveklabnik

Update HashMap docs regarding DoS protection

Because of changes to how Rust acquires randomness HashMap is not
guaranteed to be DoS resistant. This commit reflects these changes in
the docs themselves and provides an alternative method to creating
a hash that is resistant if needed.

This fixes rust-lang#33817 and includes relevant information regarding changes made in rust-lang#33086

Update E0191 to the new error format

Part of rust-lang#35233

"r? @jonathandturner

…rielb1

Update e0017 to new format

Updated `span_err!` to use `struct_span_err!` and provide a `span_label` that describes the error in context.

Updated the test to look for the `span_label`s that are provided now.

…onathandturner

Update E0023 to the new format

Added some extra code to check for the appropriate ending for numbers ==
1 vs. not 1 in error messages.

Added an extra test so that the plural suffix is seen and exercised.

…omatsakis

run rustfmt on compiletest folder in src/tools/ folder

Updated E0087 to new format

Part of rust-lang#35233. r? @jonathandturner

Finish fixing the operator precedence tables

Add the unstable `:` colon and `<-` inplace operators.

r? @steveklabnik

…lexcrichton

Add run-pass test for issue 33498

Fixes rust-lang#33498.

r? @alexcrichton

…klabnik

book: update example patterns to be more clear

When using Point { x: 0, y: 0 } and showing pattern matching decomposing
x and y individually its hard to understand. By using a different value
for x and a different value for y it is more clear.

book: fix formatting of module layout example

Update E0214 to the new error format

Part of rust-lang#35233

Addresses rust-lang#35383
"r? @jonathandturner

…ndturner

Fix E0132 error display

Error and note now use the same span.

r? @jonathandturner

Remove unnecessary `main` functions in doc examples.

Shrink E0205 span label to the trait being implemented

Part of rust-lang#35233.
Extension of rust-lang#35468.
Closes rust-lang#35382.

r? @GuillaumeGomez

…rner

Shrink span to variant discriminant expression for E0081

Part of rust-lang#35233.
Extension of rust-lang#35353.
Fixes rust-lang#35224.

r? @jonathandturner

…t, r=jonathandturner

Updated E0026 to new format.

Part of rust-lang#35233.
Fixes rust-lang#35497.

r? @jonathandturner

Add test for issue rust-lang#29053

This PR adds a test for rust-lang#29053 (currently fails on stage 0, but works with stage 1, as it should).

Fixes rust-lang#29053

…nathandturner

Updated Error mesage to new format for E0221

Part of rust-lang#35386
r? @jonathandturner

…ormat, r=jonathandturner

Update E0162 to the new format

Part of rust-lang#35233.
Fixes rust-lang#35268.

r? @jonathandturner

Update E0033 to the new error format

Part of rust-lang#35233

Addresses rust-lang#35498
"r? @jonathandturner

Update Error Format for E0091 and E0092

Addresses [rust-lang#35228](rust-lang#35228) and [rust-lang#35229](rust-lang#35229) as part of [rust-lang#35233](rust-lang#35233).

Please let me know if there are any issues; first time contributor.

r? @jonathandturner

Update E0008 and E0007 to new format

Part of rust-lang#35233
A fix for rust-lang#35496

r? @jonathandturner

…ndturner

Do not span across nodes for E0004

Part of rust-lang#35233.
Fixes rust-lang#35529.

r? @arielb1

…athandturner

Updated E0433 to new error message. (no bonus)

Part of rust-lang#35345
r? @jonathandturner

Update E0038 to the new error format

Part of rust-lang#35233

Addresses rust-lang#35500
"r? @jonathandturner

This doesn't compile yet, and I need help. In my naive solution, adding the span label makes our error message a mutable `errors::DiagnosticBuilder` pointer.

```bash
python src/bootstrap/bootstrap.py --step check-cfail E0038 --stage 1
```

```
Building stage0 std artifacts (x86_64-unknown-linux-gnu -> x86_64-unknown-linux-gnu)
Building stage0 test artifacts (x86_64-unknown-linux-gnu -> x86_64-unknown-linux-gnu)
Building stage0 compiler artifacts (x86_64-unknown-linux-gnu -> x86_64-unknown-linux-gnu)
   Compiling rustc v0.0.0 (file:///home/nash/code/rust/src/librustc)
src/librustc/traits/error_reporting.rs:735:9: 735:12 error: mismatched types [E0308]
src/librustc/traits/error_reporting.rs:735         err
                                                   ^~~
src/librustc/traits/error_reporting.rs:735:9: 735:12 help: run `rustc --explain E0308` to see a detailed explanation
src/librustc/traits/error_reporting.rs:735:9: 735:12 note: expected type `core::option::Option<errors::DiagnosticBuilder<'tcx>>`
src/librustc/traits/error_reporting.rs:735:9: 735:12 note:    found type `core::option::Option<&mut errors::DiagnosticBuilder<'_>>`
error: aborting due to previous error
error: Could not compile `rustc`.

To learn more, run the command again with --verbose.

command did not execute successfully: "/home/nash/code/rust/build/x86_64-unknown-linux-gnu/stage0/bin/cargo" "build" "-j" "4" "--target" "x86_64-unknown-linux-gnu" "--release" "--features" " jemalloc" "--manifest-path" "/home/nash/code/rust/src/rustc/Cargo.toml"
expected success, got: exit code: 101
```

…athandturner

Updated E0045 to new error format (no bonus)

Part of rust-lang#35501
r? @jonathandturner

Update error message E0384 to new format

Part of rust-lang#35233
Fixes rust-lang#35184

r? @jonathandturner

Add tracking issue for `String::insert_str`

…t, r=jonathandturner

E0128 update error format

Fixes rust-lang#35508

Part of rust-lang#35233

r? @jonathandturner

E0263 updated to new format.

Fixes rust-lang#35518. Part of rust-lang#35233.
r? @jonathandturner

Remove redundant `&mut ref mut` in doc for Result::as_mut()

While a good example of how `&mut ref mut` is a no-op, I don't think we should show that here :)
See https://users.rust-lang.org/t/mnemonic-for-reading-qualifiers/6853

r? @steveklabnik