Fix some `#[expect]` lint interaction
Fixing the first few lints that aren't caught by `#[expect]`. The root cause of these examples was, that the lint was emitted at the wrong location.
---
changelog: none
r? `@Jarcho`
cc: rust-lang/rust#97660
Improve lint doc consistency
changelog: none
This is a continuation of #8908.
Notable changes:
- Removed empty `Known Problems` sections
- Removed "Good"/"Bad" language (replaced with "Use instead")
- Removed (and added some 😄) duplication
- Ignored the [`create_dir`] example so it doesn't create `clippy_lints/foo` 😄
fix(lint): check const context
close: https://github.com/rust-lang/rust-clippy/issues/8898
This PR fixes a bug in checked_conversions.
Thank you in advance.
changelog: check const context in checked_conversions.
* Don't lint on `.cloned().flatten()` when `T::Item` doesn't implement `IntoIterator`
* Reduce verbosity of lint message
* Narrow down the scope of the replacement range
List configuration values can now be extended instead of replaced
I've seen some `clippy.toml` files, that have a few additions to the default list of a configuration and then a copy of our default. The list will therefore not be updated, when we add new names. This change should make it simple for new users to append values instead of replacing them.
I'm uncertain if the documentation of the `".."` is apparent. Any suggestions are welcome. I've also check that the lint list displays the examples correctly.
<details>
<summary>Lint list screenshots</summary>
</details>
---
changelog: enhancement: [`doc_markdown`]: Users can now indicate, that the `doc-valid-idents` should extend the default and not replace it
changelog: enhancement: [`blacklisted-name`]: Users can now indicate, that the `blacklisted-names` should extend the default and not replace it
Closes: #8877
That's it. Have a fantastic weekend to everyone reading this. Here is a cookie 🍪
Add new lint [`needless_parens_on_range_literals`]
changelog: Adds a new lint [`needless_parens_on_range_literals`] to warn on needless braces on literals in a range statement
For example, the lint would catch
```log
error: needless parenthesis on range literals can be removed
--> $DIR/needless_parens_on_range_literals.rs:8:13
|
LL | let _ = ('a')..=('z');
| ^^^^^ help: try: `'a'`
|
= note: `-D clippy::needless-parens-on-range-literals` implied by `-D warnings`
```
improve [`for_loops_over_fallibles`] to detect the usage of iter, iter_mut and into_iterator
fix#6762
detects code like
```rust
for _ in option.iter() {
//..
}
```
changelog: Improve [`for_loops_over_fallibles`] to detect `for _ in option.iter() {}` or using `iter_mut()` or `into_iterator()`.
Remove the unneeded wrapping and unwrapping in suggestion creation.
Collecting to Option<Vec<_>> only returns None if one of the elements is
None and that is never the case here.
fix(manual_find_map and manual_filter_map): check clone method
close#8920
Added conditional branching when the clone method is used.
Thank you in advance.
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changelog: check `clone()` and other variant preserving methods in [`manual_find_map`] and [`manual_filter_map`]
