Remove an unnecessary space in doc

Rollup of 3 pull requests

Successful merges:

 - #97920 (Fix some test annotations)
 - #97950 (Clarify `#[derive(PartialEq)]` on enums)
 - #98011 (Add documentation for error E0208)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

Add documentation for error E0208

Related to https://github.com/rust-lang/rust/issues/61137

Clarify `#[derive(PartialEq)]` on enums

Fixes #97945

Fix some test annotations

These are necessary for running the rustc test suite with cg_clif.

Use `create_snapshot_for_diagnostic` instead of `clone` for `Parser`

Use [`create_snapshot_for_diagnostic`](https://github.com/rust-lang/rust/blob/cd119057160cedea245aa2679add56723f3dc784/compiler/rustc_parse/src/parser/diagnostics.rs#L214-L223) I implemented in https://github.com/rust-lang/rust/pull/94731 instead of `clone` to avoid duplicate unclosed delims errors being emitted when the `Parser` is dropped. I missed this one in #95068.

Try out `yeet` in the MIR interpreter

Since we got a new bootstrap, we can give this a shot.

r? `@oli-obk`

Remove duplicated implementations of borrowed locals analysis

These are necessary for running the rustc test suite with cg_clif

Rollup of 5 pull requests

Successful merges:

 - #97921 (additional docs example for replace **all** of str)
 - #97970 (Fix Termination impl panic on closed stderr)
 - #97991 (Use safer `strip=symbols`-flag for dylibs on macOS)
 - #97992 (Stabilize scoped threads.)
 - #98012 (`ValuePairs::PolyTraitRefs` should be called "trait"s in type error diagnostics)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

`ValuePairs::PolyTraitRefs` should be called "trait"s in type error diagnostics

Pretty simple, we already do this for `ValuePairs::TraitRefs`...

Stabilize scoped threads.

Tracking issue: https://github.com/rust-lang/rust/issues/93203

FCP finished here: https://github.com/rust-lang/rust/issues/93203#issuecomment-1152249466

Use safer `strip=symbols`-flag for dylibs on macOS

Closes #93988

To safely strip dylibs on macOS, the `-x` flag is needed per the manpage (see the discussion here: https://github.com/rust-lang/rust/issues/93988#issuecomment-1042574854).

Thus, when the current `crate_type` is producing a dylib (I assume this is the case for proc macros) use the `-x` flag instead of bare `strip` for `strip=symbols`.

Fix Termination impl panic on closed stderr

Repro:

```rust
#![feature(backtrace)]

use std::backtrace::Backtrace;
use std::io::{self, Write as _};
use std::panic::{self, PanicInfo};

#[derive(Debug)]
pub struct Error;

fn panic_hook(panic_info: &PanicInfo) {
    let backtrace = Backtrace::force_capture();
    let _ = write!(io::stdout(), "{}\n{}", panic_info, backtrace);
}

fn main() -> Result<(), Error> {
    panic::set_hook(Box::new(panic_hook));
    let stderr = io::stderr();
    let mut stderr = stderr.lock();
    while stderr.write_all(b".\n").is_ok() {}
    Err(Error)
}
```

### Before:

```console
$ target/debug/repro 3>&2 2>&1 1>&3 | head
.
.
.
.
.
.
.
.
.
.
panicked at 'failed printing to stderr: Broken pipe (os error 32)', library/std/src/io/stdio.rs:1016:9
   0: testing::panic_hook
             at ./src/main.rs:11:21
   1: core::ops::function::Fn::call
             at /git/rust/library/core/src/ops/function.rs:77:5
   2: std::panicking::rust_panic_with_hook
   3: std::panicking::begin_panic_handler::{{closure}}
   4: std::sys_common::backtrace::__rust_end_short_backtrace
   5: rust_begin_unwind
   6: core::panicking::panic_fmt
   7: std::io::stdio::_eprint
   8: <core::result::Result<!,E> as std::process::Termination>::report
             at /git/rust/library/std/src/process.rs:2164:9
   9: <core::result::Result<(),E> as std::process::Termination>::report
             at /git/rust/library/std/src/process.rs:2148:25
  10: std::rt::lang_start::{{closure}}
             at /git/rust/library/std/src/rt.rs:145:18
  11: std::rt::lang_start_internal
  12: std::rt::lang_start
             at /git/rust/library/std/src/rt.rs:144:17
  13: main
  14: __libc_start_main
             at /build/glibc-SzIz7B/glibc-2.31/csu/../csu/libc-start.c:308:16
  15: _start
```

### After:

```console
$ target/debug/repro 3>&2 2>&1 1>&3 | head
.
.
.
.
.
.
.
.
.
.
```

additional docs example for replace **all** of str

clean variance test

Remove unnecessary generic parameter.

Tidy up miscellaneous bounds suggestions

Just some small fixes to suggestions

- Generalizes `Ty::is_suggestable` into a `TypeVisitor`, so that it can be called on things other than `Ty`
- Makes `impl Trait` in arg position no longer suggestible (generalizing the fix in #97640)
- Fixes `impl Trait` not being replaced with fresh type param when it's deeply nested in function signature (fixes #97760)
- Fixes some poor handling of `where` clauses with no predicates (also #97760)
- Uses `InferCtxt::resolve_numeric_literals_with_default` so we suggest `i32` instead of `{integer}` (fixes #97677)

Sorry there aren't many tests the fixes. Most of them would just be duplicates of other tests with empty `where` clauses or `impl Trait` in arg position instead of generic params. Let me know if you'd want more test coverage.

Fix inference issues with unconstrained base expr in `type_changing_struct_update`

Use fresh infer vars to guide inference along in `type_changing_struct_update`.

Fixes #96878

Handle `def_ident_span` like `def_span`.

`def_ident_span` had an ad-hoc status in the compiler.

This PR refactors it to be a first-class citizen like `def_span`:
- it gets encoded in the main metadata loop, instead of the visitor;
- its implementation is updated to mirror the one of `def_span`.

We do not remove the `Option` in the return type, since some items do not have an ident, AnonConsts for instance.

Rollup of 5 pull requests

Successful merges:

 - #97904 (Small grammar fix in the compile_error documentation)
 - #97943 (line 1352, change `self` to `*self`, other to `*other`)
 - #97969 (Make -Cpasses= only apply to pre-link optimization)
 - #97990 (Add more eslint checks)
 - #97994 (feat(fix): update some links in `hir.rs`)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

feat(fix): update some links in `hir.rs`

This PR fixes some links in `hir.rs`.

The relative paths seem to be different from when this comment was committed.

ref:

- related commit
https://github.com/rust-lang/rust/commit/1e6adad33f3664d7f09742b73fd97aca63d6406f

- current page
https://doc.rust-lang.org/beta/nightly-rustc/rustc_hir/hir/enum.QPath.html
https://doc.rust-lang.org/beta/nightly-rustc/rustc_hir/hir/enum.ExprKind.html#variant.MethodCall

Thank you in advance.