3 files changed, 7 insertions, 7 deletions
diff --git a/compiler/rustc_mir/src/interpret/util.rs b/compiler/rustc_mir/src/interpret/util.rs
index 987efdf49c1..fce5553c993 100644
--- a/compiler/rustc_mir/src/interpret/util.rs
+++ b/compiler/rustc_mir/src/interpret/util.rs
@@ -18,7 +18,7 @@ where
     };
 
     impl<'tcx> TypeVisitor<'tcx> for UsedParamsNeedSubstVisitor<'tcx> {
-        fn visit_const(&mut self, c: &'tcx ty::Const<'tcx>) -> ControlFlow<(), ()> {
+        fn visit_const(&mut self, c: &'tcx ty::Const<'tcx>) -> ControlFlow<()> {
             if !c.needs_subst() {
                 return ControlFlow::CONTINUE;
             }
@@ -29,7 +29,7 @@ where
             }
         }
 
-        fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<(), ()> {
+        fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<()> {
             if !ty.needs_subst() {
                 return ControlFlow::CONTINUE;
             }
diff --git a/compiler/rustc_mir/src/monomorphize/polymorphize.rs b/compiler/rustc_mir/src/monomorphize/polymorphize.rs
index 4cf01ce3b88..c2ebc954a22 100644
--- a/compiler/rustc_mir/src/monomorphize/polymorphize.rs
+++ b/compiler/rustc_mir/src/monomorphize/polymorphize.rs
@@ -250,7 +250,7 @@ impl<'a, 'tcx> Visitor<'tcx> for MarkUsedGenericParams<'a, 'tcx> {
 }
 
 impl<'a, 'tcx> TypeVisitor<'tcx> for MarkUsedGenericParams<'a, 'tcx> {
-    fn visit_const(&mut self, c: &'tcx Const<'tcx>) -> ControlFlow<(), ()> {
+    fn visit_const(&mut self, c: &'tcx Const<'tcx>) -> ControlFlow<()> {
         debug!("visit_const: c={:?}", c);
         if !c.has_param_types_or_consts() {
             return ControlFlow::CONTINUE;
@@ -283,7 +283,7 @@ impl<'a, 'tcx> TypeVisitor<'tcx> for MarkUsedGenericParams<'a, 'tcx> {
         }
     }
 
-    fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<(), ()> {
+    fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<()> {
         debug!("visit_ty: ty={:?}", ty);
         if !ty.has_param_types_or_consts() {
             return ControlFlow::CONTINUE;
@@ -318,7 +318,7 @@ struct HasUsedGenericParams<'a> {
 }
 
 impl<'a, 'tcx> TypeVisitor<'tcx> for HasUsedGenericParams<'a> {
-    fn visit_const(&mut self, c: &'tcx Const<'tcx>) -> ControlFlow<(), ()> {
+    fn visit_const(&mut self, c: &'tcx Const<'tcx>) -> ControlFlow<()> {
         debug!("visit_const: c={:?}", c);
         if !c.has_param_types_or_consts() {
             return ControlFlow::CONTINUE;
@@ -336,7 +336,7 @@ impl<'a, 'tcx> TypeVisitor<'tcx> for HasUsedGenericParams<'a> {
         }
     }
 
-    fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<(), ()> {
+    fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<()> {
         debug!("visit_ty: ty={:?}", ty);
         if !ty.has_param_types_or_consts() {
             return ControlFlow::CONTINUE;
diff --git a/compiler/rustc_mir/src/util/pretty.rs b/compiler/rustc_mir/src/util/pretty.rs
index 4065401731a..5700492d6bb 100644
--- a/compiler/rustc_mir/src/util/pretty.rs
+++ b/compiler/rustc_mir/src/util/pretty.rs
@@ -640,7 +640,7 @@ pub fn write_allocations<'tcx>(
     }
     struct CollectAllocIds(BTreeSet<AllocId>);
     impl<'tcx> TypeVisitor<'tcx> for CollectAllocIds {
-        fn visit_const(&mut self, c: &'tcx ty::Const<'tcx>) -> ControlFlow<(), ()> {
+        fn visit_const(&mut self, c: &'tcx ty::Const<'tcx>) -> ControlFlow<()> {
             if let ty::ConstKind::Value(val) = c.val {
                 self.0.extend(alloc_ids_from_const(val));
             }