Auto merge of rust-lang#12333 - MarcusGrass:issue-12223, r=Manishearth

Allow unused_imports, and unused_import_braces on `use`

Fixes rust-lang/rust-clippy#12223.

Both `unused_import_braces` and `unused_imports` are valid on `use`-items, additional to the two previously allowed.

changelog: [`useless_attribute`]: Allow `rustc_lint` `unused_import_braces` and `unused_imports` on `use`-items

Author: bors

clippy_lints/src/attrs.rs

@@ -564,6 +564,7 @@ impl<'tcx> LateLintPass<'tcx> for Attributes {
                                             || is_word(lint, sym::deprecated)
                                             || is_word(lint, sym!(unreachable_pub))
                                             || is_word(lint, sym!(unused))
+                                            || is_word(lint, sym!(unused_import_braces))
                                             || extract_clippy_lint(lint).map_or(false, |s| {
                                                 matches!(
                                                     s.as_str(),

tests/ui/useless_attribute.fixed

@@ -80,6 +80,14 @@ pub mod split {
 #[allow(clippy::single_component_path_imports)]
 use regex;
 
+mod module {
+    pub(crate) struct Struct;
+}
+
+#[rustfmt::skip]
+#[allow(unused_import_braces)]
+use module::{Struct};
+
 fn main() {
     test_indented_attr();
 }

tests/ui/useless_attribute.rs

@@ -80,6 +80,14 @@ pub mod split {
 #[allow(clippy::single_component_path_imports)]
 use regex;
 
+mod module {
+    pub(crate) struct Struct;
+}
+
+#[rustfmt::skip]
+#[allow(unused_import_braces)]
+use module::{Struct};
+
 fn main() {
     test_indented_attr();
 }