Rollup merge of #88849 - matthiaskrgr:clony_on_copy, r=petrochenkov

don't clone types that are Copy (clippy::clone_on_copy)

compiler/rustc_mir_build/src/build/matches/mod.rs

@@ -2060,7 +2060,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> {
                 source_info.span, ascription.source, ascription.user_ty,
             );
 
-            let user_ty = ascription.user_ty.clone().user_ty(
+            let user_ty = ascription.user_ty.user_ty(
                 &mut self.canonical_user_type_annotations,
                 ascription.source.ty(&self.local_decls, self.tcx).ty,
                 source_info.span,