841f2199e0
Extend `explicit_iter_loop` and `explicit_into_iter_loop` fixes #1518 Some included cleanups * Split `for_loop` test into different files for each lint (partially). * Move handling of some `into_iter` cases from `explicit_into_iter`. --- changelog: Enhancement: [`explicit_iter_loop`]: Now also handles types that implement `IntoIterator`. [#10416](https://github.com/rust-lang/rust-clippy/pull/10416) changelog: Sugg: [`explicit_into_iter_loop`]: The suggestion now works on mutable references. [#10416](https://github.com/rust-lang/rust-clippy/pull/10416) <!-- changelog_checked -->