Make hir::TyKind::TraitObject use tagged ptr

Author: BoxyUwU

clippy_lints/src/lifetimes.rs

@@ -433,7 +433,7 @@ impl<'tcx> Visitor<'tcx> for RefVisitor<'_, 'tcx> {
                 sub_visitor.visit_fn_decl(decl);
                 self.nested_elision_site_lts.append(&mut sub_visitor.all_lts());
             },
-            TyKind::TraitObject(bounds, lt, _) => {
+            TyKind::TraitObject(bounds, lt) => {
                 if !lt.is_elided() {
                     self.unelided_trait_object_lifetime = true;
                 }

clippy_lints/src/types/borrowed_box.rs

@@ -47,7 +47,7 @@ pub(super) fn check(cx: &LateContext<'_>, hir_ty: &hir::Ty<'_>, lt: &Lifetime, m
                 // Originally reported as the issue #3128.
                 let inner_snippet = snippet(cx, inner.span, "..");
                 let suggestion = match &inner.kind {
-                    TyKind::TraitObject(bounds, lt_bound, _) if bounds.len() > 1 || !lt_bound.is_elided() => {
+                    TyKind::TraitObject(bounds, lt_bound) if bounds.len() > 1 || !lt_bound.is_elided() => {
                         format!("&{ltopt}({inner_snippet})")
                     },
                     TyKind::Path(qpath)

clippy_lints/src/types/type_complexity.rs

@@ -52,7 +52,7 @@ impl<'tcx> Visitor<'tcx> for TypeComplexityVisitor {
             // function types bring a lot of overhead
             TyKind::BareFn(bare) if bare.abi == Abi::Rust => (50 * self.nest, 1),
 
-            TyKind::TraitObject(param_bounds, _, _) => {
+            TyKind::TraitObject(param_bounds, _) => {
                 let has_lifetime_parameters = param_bounds.iter().any(|bound| {
                     bound
                         .bound_generic_params

clippy_utils/src/check_proc_macro.rs

@@ -400,7 +400,7 @@ fn ty_search_pat(ty: &Ty<'_>) -> (Pat, Pat) {
         TyKind::OpaqueDef(..) => (Pat::Str("impl"), Pat::Str("")),
         TyKind::Path(qpath) => qpath_search_pat(&qpath),
         TyKind::Infer => (Pat::Str("_"), Pat::Str("_")),
-        TyKind::TraitObject(_, _, TraitObjectSyntax::Dyn) => (Pat::Str("dyn"), Pat::Str("")),
+        TyKind::TraitObject(_, tagged_ptr) if let TraitObjectSyntax::Dyn = tagged_ptr.tag() => (Pat::Str("dyn"), Pat::Str("")),
         // NOTE: `TraitObject` is incomplete. It will always return true then.
         _ => (Pat::Str(""), Pat::Str("")),
     }

clippy_utils/src/hir_utils.rs

@@ -1281,7 +1281,7 @@ impl<'a, 'tcx> SpanlessHash<'a, 'tcx> {
                 }
             },
             TyKind::Path(qpath) => self.hash_qpath(qpath),
-            TyKind::TraitObject(_, lifetime, _) => {
+            TyKind::TraitObject(_, lifetime) => {
                 self.hash_lifetime(lifetime);
             },
             TyKind::Typeof(anon_const) => {