Stop passing a redundant key

Author: compiler-errors

Diff for: compiler/rustc_hir_analysis/src/check/check.rs

@@ -1037,7 +1037,7 @@ fn check_impl_items_against_trait<'tcx>(
             continue;
         };
 
-        tcx.ensure().compare_impl_item((impl_item.expect_local(), ty_trait_item.def_id));
+        let _ = tcx.ensure().compare_impl_item(impl_item.expect_local());
 
         check_specialization_validity(
             tcx,

Diff for: compiler/rustc_hir_analysis/src/check/compare_impl_item.rs

@@ -38,10 +38,10 @@ mod refine;
 /// Call the query `tcx.compare_impl_item()` directly instead.
 pub(super) fn compare_impl_item(
     tcx: TyCtxt<'_>,
-    (impl_item_def_id, trait_item_def_id): (LocalDefId, DefId),
+    impl_item_def_id: LocalDefId,
 ) -> Result<(), ErrorGuaranteed> {
     let impl_item = tcx.associated_item(impl_item_def_id);
-    let trait_item = tcx.associated_item(trait_item_def_id);
+    let trait_item = tcx.associated_item(impl_item.trait_item_def_id.unwrap());
     let impl_trait_ref =
         tcx.impl_trait_ref(impl_item.container_id(tcx)).unwrap().instantiate_identity();
     debug!(?impl_trait_ref);

Diff for: compiler/rustc_middle/src/query/mod.rs

@@ -2310,9 +2310,9 @@ rustc_queries! {
     }
 
     query compare_impl_item(
-        key: (LocalDefId, DefId)
+        key: LocalDefId
     ) -> Result<(), ErrorGuaranteed> {
-        desc { |tcx| "checking assoc item `{}` is compatible with trait definition", tcx.def_path_str(key.0) }
+        desc { |tcx| "checking assoc item `{}` is compatible with trait definition", tcx.def_path_str(key) }
         cache_on_disk_if { true }
         ensure_forwards_result_if_red
     }

Diff for: compiler/rustc_ty_utils/src/instance.rs

@@ -217,7 +217,7 @@ fn resolve_associated_item<'tcx>(
             if trait_item_id != leaf_def.item.def_id
                 && let Some(leaf_def_item) = leaf_def.item.def_id.as_local()
             {
-                tcx.ensure().compare_impl_item((leaf_def_item, trait_item_id))?;
+                tcx.ensure().compare_impl_item(leaf_def_item)?;
             }
 
             Some(ty::Instance::new(leaf_def.item.def_id, args))