Rollup merge of #137448 - compiler-errors:control-flow-oops, r=scottmcm

Fix bugs due to unhandled `ControlFlow` in compiler

Well, one bug and one nit.

Author: jhpratt

compiler/rustc_lint/src/types.rs

@@ -1587,7 +1587,7 @@ impl<'a, 'tcx> ImproperCTypesVisitor<'a, 'tcx> {
         }
 
         impl<'a, 'b, 'tcx> ty::visit::TypeVisitor<TyCtxt<'tcx>> for FnPtrFinder<'a, 'b, 'tcx> {
-            type Result = ControlFlow<Ty<'tcx>>;
+            type Result = ();
 
             fn visit_ty(&mut self, ty: Ty<'tcx>) -> Self::Result {
                 if let ty::FnPtr(_, hdr) = ty.kind()

compiler/stable_mir/src/visitor.rs

@@ -161,7 +161,7 @@ impl Visitable for RigidTy {
             RigidTy::Slice(inner) => inner.visit(visitor),
             RigidTy::RawPtr(ty, _) => ty.visit(visitor),
             RigidTy::Ref(reg, ty, _) => {
-                reg.visit(visitor);
+                reg.visit(visitor)?;
                 ty.visit(visitor)
             }
             RigidTy::Adt(_, args)