unix: Avoid name conversions in remove_dir_all_recursive
#94724
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Each recursive call was creating an `OsString` for a `&Path`, only for it to be turned into a `CString` right away. Instead we can directly pass `.name_cstr()`, saving two allocations each time.
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Rollup of 5 pull requests Successful merges: - rust-lang#94689 (Use impl substs in `#[rustc_on_unimplemented]`) - rust-lang#94714 (Enable `close_read_wakes_up` test on Windows) - rust-lang#94723 (Add core::hint::must_use) - rust-lang#94724 (unix: Avoid name conversions in `remove_dir_all_recursive`) - rust-lang#94730 (Reverted atomic_mut_ptr feature removal causing compilation break) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
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Each recursive call was creating an
OsStringfor a&Path, only forit to be turned into a
CStringright away. Instead we can directlypass
.name_cstr(), saving two allocations each time.