Function errno_location() is not used on DragonFly. As warnings are
errors, this breaks the build.

Fixes rust-lang#35250

Fixes rust-lang#35251
Also changes the span of the error to the span of the type
as suggested in the bonus section of rust-lang#35251

For rust-lang#35194

Fixes rust-lang#35249 as part of rust-lang#35233.

Update E0185 and E0186 to new format

Part of rust-lang#35233.
Fixes rust-lang#35277.
Fixes rust-lang#35276.
r? @jonathandturner

Updates compiler error E0046 with new format

Addresses rust-lang#35209 as part of rust-lang#35233.
r? @jonathandturner

I've repeated the following in my code. If this is something not desirable then let me know if there's any process to make this any cleaner. Thank you.
```rust
missing_items.iter()
    .map(|name| name.to_string())
     .collect::<Vec<_>>().join("`, `"))
```

Updates compiler error E0040 with new format

Addresses rust-lang#35208 as part of rust-lang#35233.
r? @GuillaumeGomez

Updated error message E0282

Fixes rust-lang#35312 as part of rust-lang#35233.

r? @GuillaumeGomez

Update error format rust-lang#35304

Fixes rust-lang#35304 as part of rust-lang#35233.

r? @jonathandturner

…andturner

Update compiler error 0027 to use new error format.

Part of rust-lang#35233,
Addresses rust-lang#35200

r? @jonathandturner

…andturner

Update E0223 to the new format

Part of rust-lang#35233.
Fixes rust-lang#35387.

r? @jonathandturner

…andturner

Update compiler error 0029 to use new error format.

Part of rust-lang#35233,
Addresses rust-lang#35201

r? @jonathandturner

E0131 updated to new format

Changes
```
error[E0131]: main function is not allowed to have type parameters
  --> src/test/compile-fail/E0131.rs:11:1
   |
11 | fn main<T>() { //~ ERROR E0131
   | ^
```
to
```
error[E0131]: main function is not allowed to have type parameters
  --> src/test/compile-fail/E0131.rs:11:1
   |
11 | fn main<T>() { //~ ERROR E0131
   |        ^^^ main cannot have type parameters
```
Fixes rust-lang#35257. Part of rust-lang#35233.
r? @jonathandturner

Update error message for E0243 and E0244

Fixes rust-lang#35389 and rust-lang#35390 as part of rust-lang#35233.

r? @jonathandturner

…t, r=jonathandturner

Updated E0225 to new format.

Part of rust-lang#35233.
Fixes rust-lang#35388.

r? @jonathandturner

…l422

Indicate tracking issue for `exact_size_is_empty` unstability.

rust-lang#35428

…-location, r=alexcrichton

Fix build on DragonFly (unused function errno_location)

Function errno_location() is not used on DragonFly. As warnings are
errors, this breaks the build.

…=jonathandturner

Fixing compiler error E0121

Fixes rust-lang#35254 and part of rust-lang#35233

Add doc example for `std::ffi::NulError::into_vec`.

None

…onathandturner

Update E0010 to use the new format

For rust-lang#35194

Update E0101 and E0102 to new format

Part of rust-lang#35233
Fixes rust-lang#35243
Fixes rust-lang#35244
r? @jonathandturner

PS: My first contribution

New error message format for E0117 and E0118

Part of rust-lang#35233
r? @jonathandturner

Update E0204 to the new error format

Part of rust-lang#35233

Addresses rust-lang#35381
"r? @jonathandturner

Update E0116 to new error code format.

Fixes rust-lang#35249 as part of rust-lang#35233.

r? @jonathandturner

Update E0205 to the new error format

Part of rust-lang#35233

Addresses rust-lang#35382
"r? @jonathandturner