dogfood inverse bool_to_int_with_if

Author: Xaeroxe

clippy_lints/src/dereference.rs

@@ -297,13 +297,10 @@ impl<'tcx> LateLintPass<'tcx> for Dereferencing {
                         if !is_lint_allowed(cx, EXPLICIT_DEREF_METHODS, expr.hir_id)
                             && position.lint_explicit_deref() =>
                     {
+                        let ty_changed_count = usize::from(!deref_method_same_type(expr_ty, typeck.expr_ty(sub_expr)));
                         self.state = Some((
                             State::DerefMethod {
-                                ty_changed_count: if deref_method_same_type(expr_ty, typeck.expr_ty(sub_expr)) {
-                                    0
-                                } else {
-                                    1
-                                },
+                                ty_changed_count,
                                 is_final_ufcs: matches!(expr.kind, ExprKind::Call(..)),
                                 target_mut,
                             },

clippy_lints/src/methods/unnecessary_to_owned.rs

@@ -269,7 +269,7 @@ fn check_other_call_arg<'tcx>(
         // We can't add an `&` when the trait is `Deref` because `Target = &T` won't match
         // `Target = T`.
         if n_refs > 0 || is_copy(cx, receiver_ty) || trait_predicate.def_id() != deref_trait_id;
-        let n_refs = max(n_refs, if is_copy(cx, receiver_ty) { 0 } else { 1 });
+        let n_refs = max(n_refs, usize::from(!is_copy(cx, receiver_ty)));
         if let Some(receiver_snippet) = snippet_opt(cx, receiver.span);
         then {
             span_lint_and_sugg(

tests/ui/len_without_is_empty.rs

@@ -274,7 +274,7 @@ impl AsyncLen {
     }
 
     pub async fn len(&self) -> usize {
-        if self.async_task().await { 0 } else { 1 }
+        usize::from(!self.async_task().await)
     }
 
     pub async fn is_empty(&self) -> bool {