Rollup merge of #100392 - nnethercote:simplify-visitors, r=cjgillot

Simplify visitors

By removing some unused arguments.

r? `@cjgillot`

4 files changed, 10 insertions, 27 deletions

diff --git a/compiler/rustc_passes/src/check_attr.rs b/compiler/rustc_passes/src/check_attr.rs
index 6fea68ce8b3..f75fffb6871 100644
--- a/compiler/rustc_passes/src/check_attr.rs
+++ b/compiler/rustc_passes/src/check_attr.rs
@@ -2066,14 +2066,9 @@ impl<'tcx> Visitor<'tcx> for CheckAttrVisitor<'tcx> {
         intravisit::walk_expr(self, expr)
     }
 
-    fn visit_variant(
-        &mut self,
-        variant: &'tcx hir::Variant<'tcx>,
-        generics: &'tcx hir::Generics<'tcx>,
-        item_id: HirId,
-    ) {
+    fn visit_variant(&mut self, variant: &'tcx hir::Variant<'tcx>) {
         self.check_attributes(variant.id, variant.span, Target::Variant, None);
-        intravisit::walk_variant(self, variant, generics, item_id)
+        intravisit::walk_variant(self, variant)
     }
 
     fn visit_param(&mut self, param: &'tcx hir::Param<'tcx>) {
diff --git a/compiler/rustc_passes/src/dead.rs b/compiler/rustc_passes/src/dead.rs
index 1e2fbeb384c..625c854ea77 100644
--- a/compiler/rustc_passes/src/dead.rs
+++ b/compiler/rustc_passes/src/dead.rs
@@ -368,14 +368,7 @@ impl<'tcx> Visitor<'tcx> for MarkSymbolVisitor<'tcx> {
         self.maybe_typeck_results = old_maybe_typeck_results;
     }
 
-    fn visit_variant_data(
-        &mut self,
-        def: &'tcx hir::VariantData<'tcx>,
-        _: Symbol,
-        _: &hir::Generics<'_>,
-        _: hir::HirId,
-        _: rustc_span::Span,
-    ) {
+    fn visit_variant_data(&mut self, def: &'tcx hir::VariantData<'tcx>) {
         let tcx = self.tcx;
         let has_repr_c = self.repr_has_repr_c;
         let has_repr_simd = self.repr_has_repr_simd;
diff --git a/compiler/rustc_passes/src/hir_stats.rs b/compiler/rustc_passes/src/hir_stats.rs
index ec070e6a9c5..399d00b403a 100644
--- a/compiler/rustc_passes/src/hir_stats.rs
+++ b/compiler/rustc_passes/src/hir_stats.rs
@@ -276,14 +276,9 @@ impl<'v> hir_visit::Visitor<'v> for StatCollector<'v> {
         hir_visit::walk_field_def(self, s)
     }
 
-    fn visit_variant(
-        &mut self,
-        v: &'v hir::Variant<'v>,
-        g: &'v hir::Generics<'v>,
-        item_id: hir::HirId,
-    ) {
+    fn visit_variant(&mut self, v: &'v hir::Variant<'v>) {
         self.record("Variant", Id::None, v);
-        hir_visit::walk_variant(self, v, g, item_id)
+        hir_visit::walk_variant(self, v)
     }
 
     fn visit_lifetime(&mut self, lifetime: &'v hir::Lifetime) {
diff --git a/compiler/rustc_passes/src/stability.rs b/compiler/rustc_passes/src/stability.rs
index be920601ee4..574e8073d8e 100644
--- a/compiler/rustc_passes/src/stability.rs
+++ b/compiler/rustc_passes/src/stability.rs
@@ -11,7 +11,7 @@ use rustc_hir::def::{DefKind, Res};
 use rustc_hir::def_id::{LocalDefId, CRATE_DEF_ID};
 use rustc_hir::hir_id::CRATE_HIR_ID;
 use rustc_hir::intravisit::{self, Visitor};
-use rustc_hir::{FieldDef, Generics, HirId, Item, ItemKind, TraitRef, Ty, TyKind, Variant};
+use rustc_hir::{FieldDef, Item, ItemKind, TraitRef, Ty, TyKind, Variant};
 use rustc_middle::hir::nested_filter;
 use rustc_middle::middle::privacy::AccessLevels;
 use rustc_middle::middle::stability::{AllowUnstable, DeprecationEntry, Index};
@@ -442,7 +442,7 @@ impl<'a, 'tcx> Visitor<'tcx> for Annotator<'a, 'tcx> {
         );
     }
 
-    fn visit_variant(&mut self, var: &'tcx Variant<'tcx>, g: &'tcx Generics<'tcx>, item_id: HirId) {
+    fn visit_variant(&mut self, var: &'tcx Variant<'tcx>) {
         self.annotate(
             self.tcx.hir().local_def_id(var.id),
             var.span,
@@ -465,7 +465,7 @@ impl<'a, 'tcx> Visitor<'tcx> for Annotator<'a, 'tcx> {
                     );
                 }
 
-                intravisit::walk_variant(v, var, g, item_id)
+                intravisit::walk_variant(v, var)
             },
         )
     }
@@ -598,9 +598,9 @@ impl<'tcx> Visitor<'tcx> for MissingStabilityAnnotations<'tcx> {
         intravisit::walk_impl_item(self, ii);
     }
 
-    fn visit_variant(&mut self, var: &'tcx Variant<'tcx>, g: &'tcx Generics<'tcx>, item_id: HirId) {
+    fn visit_variant(&mut self, var: &'tcx Variant<'tcx>) {
         self.check_missing_stability(self.tcx.hir().local_def_id(var.id), var.span);
-        intravisit::walk_variant(self, var, g, item_id);
+        intravisit::walk_variant(self, var);
     }
 
     fn visit_field_def(&mut self, s: &'tcx FieldDef<'tcx>) {