Fix false positive in useless_attribute with redundant_imports (#15318)

Fix false positive in `useless_attribute` with `redundant_imports`

Add `redundant_imports` to the list of allowed lints on use items to
prevent
`useless_attribute` from triggering false positives when
`#[expect(redundant_imports)]`
or similar attributes are used on use statements.

fixes rust-lang/rust-clippy#15316

---

changelog: [`useless_attribute`]: fix false positive when using
`#[expect(redundant_imports)]` and similar lint attributes on `use`
statements

2 files changed, 24 insertions, 0 deletions

diff --git a/tests/ui/useless_attribute.fixed b/tests/ui/useless_attribute.fixed
index a96c8f46f55..830aa3c976f 100644
--- a/tests/ui/useless_attribute.fixed
+++ b/tests/ui/useless_attribute.fixed
@@ -146,3 +146,15 @@ pub mod unknown_namespace {
     #[allow(rustc::non_glob_import_of_type_ir_inherent)]
     use some_module::SomeType;
 }
+
+// Regression test for https://github.com/rust-lang/rust-clippy/issues/15316
+pub mod redundant_imports_issue {
+    macro_rules! empty {
+        () => {};
+    }
+
+    #[expect(redundant_imports)]
+    pub(crate) use empty;
+
+    empty!();
+}
diff --git a/tests/ui/useless_attribute.rs b/tests/ui/useless_attribute.rs
index b26410134bb..14c69ccf2ed 100644
--- a/tests/ui/useless_attribute.rs
+++ b/tests/ui/useless_attribute.rs
@@ -146,3 +146,15 @@ pub mod unknown_namespace {
     #[allow(rustc::non_glob_import_of_type_ir_inherent)]
     use some_module::SomeType;
 }
+
+// Regression test for https://github.com/rust-lang/rust-clippy/issues/15316
+pub mod redundant_imports_issue {
+    macro_rules! empty {
+        () => {};
+    }
+
+    #[expect(redundant_imports)]
+    pub(crate) use empty;
+
+    empty!();
+}