Rollup merge of #131375 - klensy:clone_on_ref_ptr, r=cjgillot

compiler: apply clippy::clone_on_ref_ptr for CI

Apply lint https://rust-lang.github.io/rust-clippy/master/index.html#/clone_on_ref_ptr for compiler, also see https://github.com/rust-lang/rust/pull/131225#discussion_r1790109443.

Some Arc's can be misplaced with Lrc's, sorry.

https://rust-lang.zulipchat.com/#narrow/channel/131828-t-compiler/topic/enable.20more.20clippy.20lints.20for.20compiler.20.28and.5Cor.20std.29

compiler/rustc_ast_lowering/src/path.rs

@@ -73,7 +73,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
         let bound_modifier_allowed_features = if let Res::Def(DefKind::Trait, async_def_id) = res
             && self.tcx.async_fn_trait_kind_from_def_id(async_def_id).is_some()
         {
-            Some(self.allow_async_fn_traits.clone())
+            Some(Lrc::clone(&self.allow_async_fn_traits))
         } else {
             None
         };