Auto merge of rust-lang#116033 - bvanjoi:fix-116032, r=petrochenkov

report `unused_import` for empty reexports even it is pub

Fixes rust-lang#116032

An easy fix. r? `@petrochenkov`

(Discovered this issue while reviewing rust-lang#115993.)

Author: bors

core/src/arch.rs

@@ -1,5 +1,6 @@
 #![doc = include_str!("../../stdarch/crates/core_arch/src/core_arch_docs.md")]
 
+#[allow(unused_imports)]
 #[stable(feature = "simd_arch", since = "1.27.0")]
 pub use crate::core_arch::arch::*;
 

core/tests/lib.rs

@@ -120,8 +120,6 @@
 #![deny(unsafe_op_in_unsafe_fn)]
 #![deny(fuzzy_provenance_casts)]
 
-extern crate test;
-
 mod alloc;
 mod any;
 mod array;

core/tests/num/flt2dec/mod.rs

@@ -8,8 +8,6 @@ use core::num::flt2dec::{
 };
 use core::num::fmt::{Formatted, Part};
 
-pub use test::Bencher;
-
 mod estimator;
 mod strategy {
     mod dragon;

portable-simd/crates/core_simd/src/mod.rs

@@ -35,6 +35,5 @@ pub mod simd {
     pub use crate::core_simd::masks::*;
     pub use crate::core_simd::ord::*;
     pub use crate::core_simd::swizzle::*;
-    pub use crate::core_simd::swizzle_dyn::*;
     pub use crate::core_simd::vector::*;
 }

std/src/sys/common/mod.rs

@@ -12,6 +12,7 @@
 
 pub mod alloc;
 pub mod small_c_string;
+#[allow(unused_imports)]
 pub mod thread_local;
 
 #[cfg(test)]

std/src/sys/unix/mod.rs

@@ -241,6 +241,7 @@ pub unsafe fn cleanup() {
 
 #[cfg(target_os = "android")]
 pub use crate::sys::android::signal;
+#[allow(unused_imports)]
 #[cfg(not(target_os = "android"))]
 pub use libc::signal;
 

std/src/sys/unix/process/mod.rs

@@ -1,7 +1,6 @@
 pub use self::process_common::{Command, CommandArgs, ExitCode, Stdio, StdioPipes};
 pub use self::process_inner::{ExitStatus, ExitStatusError, Process};
 pub use crate::ffi::OsString as EnvKey;
-pub use crate::sys_common::process::CommandEnvs;
 
 #[cfg_attr(any(target_os = "espidf", target_os = "horizon"), allow(unused))]
 mod process_common;

std/src/sys/unix/process/process_common.rs

@@ -75,6 +75,7 @@ cfg_if::cfg_if! {
             return 0;
         }
     } else {
+        #[allow(unused_imports)]
         pub use libc::{sigemptyset, sigaddset};
     }
 }