No more TyCtxt::lazy_normalization

compiler/rustc_hir_analysis/src/collect/generics_of.rs

@@ -50,7 +50,7 @@ pub(super) fn generics_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Generics {
                 // We do not allow generic parameters in anon consts if we are inside
                 // of a const parameter type, e.g. `struct Foo<const N: usize, const M: [u8; N]>` is not allowed.
                 None
-            } else if tcx.lazy_normalization() {
+            } else if tcx.features().generic_const_exprs {
                 let parent_node = tcx.hir().get_parent(hir_id);
                 if let Node::Variant(Variant { disr_expr: Some(constant), .. }) = parent_node
                     && constant.hir_id == hir_id

compiler/rustc_hir_analysis/src/collect/predicates_of.rs

@@ -463,7 +463,7 @@ pub(super) fn explicit_predicates_of<'tcx>(
             }
         }
     } else {
-        if matches!(def_kind, DefKind::AnonConst) && tcx.lazy_normalization() {
+        if matches!(def_kind, DefKind::AnonConst) && tcx.features().generic_const_exprs {
             let hir_id = tcx.hir().local_def_id_to_hir_id(def_id);
             let parent_def_id = tcx.hir().get_parent_item(hir_id);
 

compiler/rustc_hir_analysis/src/outlives/mod.rs

@@ -20,7 +20,8 @@ pub fn provide(providers: &mut Providers) {
 fn inferred_outlives_of(tcx: TyCtxt<'_>, item_def_id: LocalDefId) -> &[(ty::Clause<'_>, Span)] {
     let id = tcx.hir().local_def_id_to_hir_id(item_def_id);
 
-    if matches!(tcx.def_kind(item_def_id), hir::def::DefKind::AnonConst) && tcx.lazy_normalization()
+    if matches!(tcx.def_kind(item_def_id), hir::def::DefKind::AnonConst)
+        && tcx.features().generic_const_exprs
     {
         if tcx.hir().opt_const_param_default_param_def_id(id).is_some() {
             // In `generics_of` we set the generics' parent to be our parent's parent which means that

compiler/rustc_infer/src/infer/combine.rs

@@ -227,7 +227,7 @@ impl<'tcx> InferCtxt<'tcx> {
                 return self.unify_const_variable(vid, a, relation.param_env());
             }
             (ty::ConstKind::Unevaluated(..), _) | (_, ty::ConstKind::Unevaluated(..))
-                if self.tcx.lazy_normalization() =>
+                if self.tcx.features().generic_const_exprs =>
             {
                 relation.register_const_equate_obligation(a, b);
                 return Ok(b);

compiler/rustc_middle/src/ty/context.rs

@@ -1015,15 +1015,6 @@ impl<'tcx> TyCtxt<'tcx> {
         self.query_system.on_disk_cache.as_ref().map_or(Ok(0), |c| c.serialize(self, encoder))
     }
 
-    /// If `true`, we should use lazy normalization for constants, otherwise
-    /// we still evaluate them eagerly.
-    #[inline]
-    pub fn lazy_normalization(self) -> bool {
-        let features = self.features();
-        // Note: We only use lazy normalization for generic const expressions.
-        features.generic_const_exprs
-    }
-
     #[inline]
     pub fn local_crate_exports_generics(self) -> bool {
         debug_assert!(self.sess.opts.share_generics());

compiler/rustc_trait_selection/src/traits/project.rs

@@ -672,7 +672,9 @@ impl<'a, 'b, 'tcx> TypeFolder<TyCtxt<'tcx>> for AssocTypeNormalizer<'a, 'b, 'tcx
     #[instrument(skip(self), level = "debug")]
     fn fold_const(&mut self, constant: ty::Const<'tcx>) -> ty::Const<'tcx> {
         let tcx = self.selcx.tcx();
-        if tcx.lazy_normalization() || !needs_normalization(&constant, self.param_env.reveal()) {
+        if tcx.features().generic_const_exprs
+            || !needs_normalization(&constant, self.param_env.reveal())
+        {
             constant
         } else {
             let constant = constant.super_fold_with(self);