Account for trait alias when looking for defid

Author: tesuji

clippy_lints/src/utils/mod.rs

@@ -269,8 +269,7 @@ pub fn get_trait_def_id(cx: &LateContext<'_, '_>, path: &[&str]) -> Option<DefId
     };
 
     match res {
-        Res::Def(DefKind::Trait, trait_id) => Some(trait_id),
-        Res::Def(DefKind::TraitAlias, trait_id) => Some(trait_id),
+        Res::Def(DefKind::Trait, trait_id) | Res::Def(DefKind::TraitAlias, trait_id) => Some(trait_id),
         Res::Err => unreachable!("this trait resolution is impossible: {:?}", &path),
         _ => None,
     }