rustdoc: pass owner item of generics to cleaning functions

src/librustdoc/clean/auto_trait.rs

@@ -106,6 +106,7 @@ where
                     self.cx,
                     tcx.generics_of(item_def_id),
                     ty::GenericPredicates::default(),
+                    item_def_id,
                 );
                 let params = raw_generics.params;
 
@@ -456,6 +457,7 @@ where
             self.cx,
             tcx.generics_of(item_def_id),
             tcx.explicit_predicates_of(item_def_id),
+            item_def_id,
         );
         let mut generic_params = raw_generics.params;
 

src/librustdoc/clean/blanket_impl.rs

@@ -101,6 +101,7 @@ impl<'a, 'tcx> BlanketImplFinder<'a, 'tcx> {
                             cx,
                             cx.tcx.generics_of(impl_def_id),
                             cx.tcx.explicit_predicates_of(impl_def_id),
+                            impl_def_id,
                         ),
                         // FIXME(eddyb) compute both `trait_` and `for_` from
                         // the post-inference `trait_ref`, as it's more accurate.

src/librustdoc/clean/inline.rs

@@ -270,7 +270,7 @@ pub(crate) fn build_external_trait(cx: &mut DocContext<'_>, did: DefId) -> clean
         .collect();
 
     let predicates = cx.tcx.predicates_of(did);
-    let generics = clean_ty_generics(cx, cx.tcx.generics_of(did), predicates);
+    let generics = clean_ty_generics(cx, cx.tcx.generics_of(did), predicates, did);
     let generics = filter_non_trait_generics(did, generics);
     let (generics, supertrait_bounds) = separate_supertrait_bounds(generics);
     clean::Trait { def_id: did, generics, items: trait_items, bounds: supertrait_bounds }
@@ -282,8 +282,12 @@ pub(crate) fn build_function<'tcx>(
 ) -> Box<clean::Function> {
     let sig = cx.tcx.fn_sig(def_id).instantiate_identity();
     // The generics need to be cleaned before the signature.
-    let mut generics =
-        clean_ty_generics(cx, cx.tcx.generics_of(def_id), cx.tcx.explicit_predicates_of(def_id));
+    let mut generics = clean_ty_generics(
+        cx,
+        cx.tcx.generics_of(def_id),
+        cx.tcx.explicit_predicates_of(def_id),
+        def_id,
+    );
     let bound_vars = clean_bound_vars(sig.bound_vars());
 
     // At the time of writing early & late-bound params are stored separately in rustc,
@@ -315,7 +319,7 @@ fn build_enum(cx: &mut DocContext<'_>, did: DefId) -> clean::Enum {
     let predicates = cx.tcx.explicit_predicates_of(did);
 
     clean::Enum {
-        generics: clean_ty_generics(cx, cx.tcx.generics_of(did), predicates),
+        generics: clean_ty_generics(cx, cx.tcx.generics_of(did), predicates, did),
         variants: cx.tcx.adt_def(did).variants().iter().map(|v| clean_variant_def(v, cx)).collect(),
     }
 }
@@ -326,7 +330,7 @@ fn build_struct(cx: &mut DocContext<'_>, did: DefId) -> clean::Struct {
 
     clean::Struct {
         ctor_kind: variant.ctor_kind(),
-        generics: clean_ty_generics(cx, cx.tcx.generics_of(did), predicates),
+        generics: clean_ty_generics(cx, cx.tcx.generics_of(did), predicates, did),
         fields: variant.fields.iter().map(|x| clean_middle_field(x, cx)).collect(),
     }
 }
@@ -335,7 +339,7 @@ fn build_union(cx: &mut DocContext<'_>, did: DefId) -> clean::Union {
     let predicates = cx.tcx.explicit_predicates_of(did);
     let variant = cx.tcx.adt_def(did).non_enum_variant();
 
-    let generics = clean_ty_generics(cx, cx.tcx.generics_of(did), predicates);
+    let generics = clean_ty_generics(cx, cx.tcx.generics_of(did), predicates, did);
     let fields = variant.fields.iter().map(|x| clean_middle_field(x, cx)).collect();
     clean::Union { generics, fields }
 }
@@ -352,7 +356,7 @@ fn build_type_alias(
 
     Box::new(clean::TypeAlias {
         type_,
-        generics: clean_ty_generics(cx, cx.tcx.generics_of(did), predicates),
+        generics: clean_ty_generics(cx, cx.tcx.generics_of(did), predicates, did),
         inner_type,
         item_type: None,
     })
@@ -530,7 +534,7 @@ pub(crate) fn build_impl(
                 })
                 .map(|item| clean_impl_item(item, cx))
                 .collect::<Vec<_>>(),
-            clean_generics(impl_.generics, cx),
+            clean_generics(impl_.generics, cx, did),
         ),
         None => (
             tcx.associated_items(did)
@@ -558,7 +562,7 @@ pub(crate) fn build_impl(
                 .map(|item| clean_middle_assoc_item(item, cx))
                 .collect::<Vec<_>>(),
             clean::enter_impl_trait(cx, |cx| {
-                clean_ty_generics(cx, tcx.generics_of(did), predicates)
+                clean_ty_generics(cx, tcx.generics_of(did), predicates, did)
             }),
         ),
     };
@@ -716,8 +720,12 @@ pub(crate) fn print_inlined_const(tcx: TyCtxt<'_>, did: DefId) -> String {
 }
 
 fn build_const(cx: &mut DocContext<'_>, def_id: DefId) -> clean::Constant {
-    let mut generics =
-        clean_ty_generics(cx, cx.tcx.generics_of(def_id), cx.tcx.explicit_predicates_of(def_id));
+    let mut generics = clean_ty_generics(
+        cx,
+        cx.tcx.generics_of(def_id),
+        cx.tcx.explicit_predicates_of(def_id),
+        def_id,
+    );
     clean::simplify::move_bounds_to_generic_parameters(&mut generics);
 
     clean::Constant {