da0538eaca
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
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.. | ||
auxiliary | ||
cargo | ||
ui | ||
ui-cargo | ||
ui-internal | ||
ui-toml | ||
clippy.toml | ||
compile-test.rs | ||
dogfood.rs | ||
fmt.rs | ||
integration.rs | ||
lint_message_convention.rs | ||
missing-test-files.rs | ||
versioncheck.rs |