Refactoring identity function lints
I've noticed that we have several lints that all check for identity functions and each used their own check implementation. I moved the `is_expr_identity_function` function to `clippy_utils` and adapted all lints to reuse that one function. This should make the addition of new lints like this also easier in the future.
I've also moved the `map_identity` lint into the `methods` module. It's probably the best to review this PR by checking each commit individually. And that's it, have a great day 🙃
changelog: none
fix `while_let_on_iterator` suggestion in a closure
fixes: #7249
A future improvement would be to check if the closure is being used as `FnOnce`, in which case the original suggestion would be correct.
changelog: Suggest `&mut iter` inside a closure for `while_let_on_iterator`
Fix missing_docs_in_private_items false negative
changelog: Fix [`missing_docs_in_private_items`] false negative when the item has any `#[name = "value"]` attribute
Closes#7247 (decided not to use the rustc method since it calls `Session::check_name`, which is for rustc only)
Fix allow on some statement lints
changelog: Fix `#[allow(..)]` over statements for [`needless_collect`], [`short_circuit_statement`] and [`unnecessary_operation`]
Fixes#7171Fixes#7202
Add avoid_breaking_exported_api config option
changelog: Add `avoid_breaking_exported_api` config option for [`enum_variant_names`], [`large_types_passed_by_value`], [`trivially_copy_pass_by_ref`], [`unnecessary_wraps`], [`upper_case_acronyms`] and [`wrong_self_convention`].
changelog: Deprecates [`pub_enum_variant_names`] and [`wrong_pub_self_convention`] as the non-pub variants are now configurable.
changelog: Fix various false negatives for `pub` items that are not exported from the crate.
A couple changes to late passes in order to use `cx.access_levels.is_exported` rather than `item.vis.kind.is_pub`.
I'm not sure how to better document the config option or lints that are (not) affected (see comments in #6806). Suggestions are welcome. cc `@rust-lang/clippy`
I added `/clippy.toml` to use the config internally and `/tests/clippy.toml` to maintain a default config in ui tests.
Closes#6806Closes#4504
Fix invalid syntax in `from_iter_instead_of_collect` suggestion
First attempt at contributing, hopefully this is a good start and can be improved. :)
fixes#7259
changelog: [`from_iter_instead_of_collect`] fix invalid suggestion involving "as Trait"
Fix `redundant_closure` for `vec![]` macro in a closure with arguments
fixes: #7224
changelog: Fix `redundant_closure` for `vec![]` macro in a closure with arguments
