diff --git a/benchmarks/InstantiateTypeArgs/dart/InstantiateTypeArgs.dart b/benchmarks/InstantiateTypeArgs/dart/InstantiateTypeArgs.dart
new file mode 100644
index 0000000..ec36c26
--- /dev/null
+++ b/benchmarks/InstantiateTypeArgs/dart/InstantiateTypeArgs.dart
@@ -0,0 +1,6105 @@
+// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+//
+// This benchmark suite measures the overhead of instantiating type arguments,
+// with a particular aim of measuring the overhead of the caching mechanism.
+
+import 'package:benchmark_harness/benchmark_harness.dart';
+
+void main() {
+  // Instantiates a series of types, each type instantiated with a single type.
+  const InstantiateOnce().report();
+  // Repeats the instantiations in InstantiateOnce, this time depending
+  // on the now-filled caches.
+  const RepeatInstantiateOnce().report();
+  // Instantiates a single type many times, each type being a new instantiation.
+  const InstantiateMany().report();
+  // Repeats the instantiations in InstantiateMany, this time depending on the
+  // now-filled cache.
+  const RepeatInstantiateMany().report();
+}
+
+class InstantiateOnce extends BenchmarkBase {
+  const InstantiateOnce() : super('InstantiateTypeArgs.InstantiateOnce');
+
+  // Only call run once, else the remaining runs will have the cached types.
+  @override
+  void exercise() => run();
+
+  @override
+  void run() {
+    instantiateOnce<B>();
+  }
+}
+
+class RepeatInstantiateOnce extends BenchmarkBase {
+  const RepeatInstantiateOnce()
+      : super('InstantiateTypeArgs.RepeatInstantiateOnce');
+
+  @override
+  void setup() {
+    // Run once to make sure the instantiations are cached, in case this
+    // benchmark is run on its own.
+    instantiateOnce<B>();
+  }
+
+  // Only call run once, so this is directly comparable to InstantiateOnce.
+  @override
+  void exercise() => run();
+
+  @override
+  void run() {
+    instantiateOnce<B>();
+  }
+}
+
+class InstantiateMany extends BenchmarkBase {
+  const InstantiateMany() : super('InstantiateTypeArgs.InstantiateMany');
+
+  // Only call run once, else the remaining runs will have the cached types.
+  @override
+  void exercise() => run();
+
+  @override
+  void run() {
+    instantiateMany();
+  }
+}
+
+class RepeatInstantiateMany extends BenchmarkBase {
+  const RepeatInstantiateMany()
+      : super('InstantiateTypeArgs.RepeatInstantiateMany');
+
+  @override
+  void setup() {
+    // Run once to make sure the instantiations are cached, in case this
+    // benchmark is run on its own.
+    instantiateMany();
+  }
+
+  // Only call run once, so this is directly comparable to InstantiateMany.
+  @override
+  void exercise() => run();
+
+  @override
+  void run() {
+    instantiateMany();
+  }
+}
+
+@pragma('vm:never-inline')
+void blackhole<T>() => null;
+
+class B {}
+
+class D<T> {
+  @pragma('vm:never-inline')
+  static void instantiate<T>() => blackhole<D<T>>();
+}
+
+class A0<T> {}
+
+class A1<T> {}
+
+class A2<T> {}
+
+class A3<T> {}
+
+class A4<T> {}
+
+class A5<T> {}
+
+class A6<T> {}
+
+class A7<T> {}
+
+class A8<T> {}
+
+class A9<T> {}
+
+class A10<T> {}
+
+class A11<T> {}
+
+class A12<T> {}
+
+class A13<T> {}
+
+class A14<T> {}
+
+class A15<T> {}
+
+class A16<T> {}
+
+class A17<T> {}
+
+class A18<T> {}
+
+class A19<T> {}
+
+class A20<T> {}
+
+class A21<T> {}
+
+class A22<T> {}
+
+class A23<T> {}
+
+class A24<T> {}
+
+class A25<T> {}
+
+class A26<T> {}
+
+class A27<T> {}
+
+class A28<T> {}
+
+class A29<T> {}
+
+class A30<T> {}
+
+class A31<T> {}
+
+class A32<T> {}
+
+class A33<T> {}
+
+class A34<T> {}
+
+class A35<T> {}
+
+class A36<T> {}
+
+class A37<T> {}
+
+class A38<T> {}
+
+class A39<T> {}
+
+class A40<T> {}
+
+class A41<T> {}
+
+class A42<T> {}
+
+class A43<T> {}
+
+class A44<T> {}
+
+class A45<T> {}
+
+class A46<T> {}
+
+class A47<T> {}
+
+class A48<T> {}
+
+class A49<T> {}
+
+class A50<T> {}
+
+class A51<T> {}
+
+class A52<T> {}
+
+class A53<T> {}
+
+class A54<T> {}
+
+class A55<T> {}
+
+class A56<T> {}
+
+class A57<T> {}
+
+class A58<T> {}
+
+class A59<T> {}
+
+class A60<T> {}
+
+class A61<T> {}
+
+class A62<T> {}
+
+class A63<T> {}
+
+class A64<T> {}
+
+class A65<T> {}
+
+class A66<T> {}
+
+class A67<T> {}
+
+class A68<T> {}
+
+class A69<T> {}
+
+class A70<T> {}
+
+class A71<T> {}
+
+class A72<T> {}
+
+class A73<T> {}
+
+class A74<T> {}
+
+class A75<T> {}
+
+class A76<T> {}
+
+class A77<T> {}
+
+class A78<T> {}
+
+class A79<T> {}
+
+class A80<T> {}
+
+class A81<T> {}
+
+class A82<T> {}
+
+class A83<T> {}
+
+class A84<T> {}
+
+class A85<T> {}
+
+class A86<T> {}
+
+class A87<T> {}
+
+class A88<T> {}
+
+class A89<T> {}
+
+class A90<T> {}
+
+class A91<T> {}
+
+class A92<T> {}
+
+class A93<T> {}
+
+class A94<T> {}
+
+class A95<T> {}
+
+class A96<T> {}
+
+class A97<T> {}
+
+class A98<T> {}
+
+class A99<T> {}
+
+class A100<T> {}
+
+class A101<T> {}
+
+class A102<T> {}
+
+class A103<T> {}
+
+class A104<T> {}
+
+class A105<T> {}
+
+class A106<T> {}
+
+class A107<T> {}
+
+class A108<T> {}
+
+class A109<T> {}
+
+class A110<T> {}
+
+class A111<T> {}
+
+class A112<T> {}
+
+class A113<T> {}
+
+class A114<T> {}
+
+class A115<T> {}
+
+class A116<T> {}
+
+class A117<T> {}
+
+class A118<T> {}
+
+class A119<T> {}
+
+class A120<T> {}
+
+class A121<T> {}
+
+class A122<T> {}
+
+class A123<T> {}
+
+class A124<T> {}
+
+class A125<T> {}
+
+class A126<T> {}
+
+class A127<T> {}
+
+class A128<T> {}
+
+class A129<T> {}
+
+class A130<T> {}
+
+class A131<T> {}
+
+class A132<T> {}
+
+class A133<T> {}
+
+class A134<T> {}
+
+class A135<T> {}
+
+class A136<T> {}
+
+class A137<T> {}
+
+class A138<T> {}
+
+class A139<T> {}
+
+class A140<T> {}
+
+class A141<T> {}
+
+class A142<T> {}
+
+class A143<T> {}
+
+class A144<T> {}
+
+class A145<T> {}
+
+class A146<T> {}
+
+class A147<T> {}
+
+class A148<T> {}
+
+class A149<T> {}
+
+class A150<T> {}
+
+class A151<T> {}
+
+class A152<T> {}
+
+class A153<T> {}
+
+class A154<T> {}
+
+class A155<T> {}
+
+class A156<T> {}
+
+class A157<T> {}
+
+class A158<T> {}
+
+class A159<T> {}
+
+class A160<T> {}
+
+class A161<T> {}
+
+class A162<T> {}
+
+class A163<T> {}
+
+class A164<T> {}
+
+class A165<T> {}
+
+class A166<T> {}
+
+class A167<T> {}
+
+class A168<T> {}
+
+class A169<T> {}
+
+class A170<T> {}
+
+class A171<T> {}
+
+class A172<T> {}
+
+class A173<T> {}
+
+class A174<T> {}
+
+class A175<T> {}
+
+class A176<T> {}
+
+class A177<T> {}
+
+class A178<T> {}
+
+class A179<T> {}
+
+class A180<T> {}
+
+class A181<T> {}
+
+class A182<T> {}
+
+class A183<T> {}
+
+class A184<T> {}
+
+class A185<T> {}
+
+class A186<T> {}
+
+class A187<T> {}
+
+class A188<T> {}
+
+class A189<T> {}
+
+class A190<T> {}
+
+class A191<T> {}
+
+class A192<T> {}
+
+class A193<T> {}
+
+class A194<T> {}
+
+class A195<T> {}
+
+class A196<T> {}
+
+class A197<T> {}
+
+class A198<T> {}
+
+class A199<T> {}
+
+class A200<T> {}
+
+class A201<T> {}
+
+class A202<T> {}
+
+class A203<T> {}
+
+class A204<T> {}
+
+class A205<T> {}
+
+class A206<T> {}
+
+class A207<T> {}
+
+class A208<T> {}
+
+class A209<T> {}
+
+class A210<T> {}
+
+class A211<T> {}
+
+class A212<T> {}
+
+class A213<T> {}
+
+class A214<T> {}
+
+class A215<T> {}
+
+class A216<T> {}
+
+class A217<T> {}
+
+class A218<T> {}
+
+class A219<T> {}
+
+class A220<T> {}
+
+class A221<T> {}
+
+class A222<T> {}
+
+class A223<T> {}
+
+class A224<T> {}
+
+class A225<T> {}
+
+class A226<T> {}
+
+class A227<T> {}
+
+class A228<T> {}
+
+class A229<T> {}
+
+class A230<T> {}
+
+class A231<T> {}
+
+class A232<T> {}
+
+class A233<T> {}
+
+class A234<T> {}
+
+class A235<T> {}
+
+class A236<T> {}
+
+class A237<T> {}
+
+class A238<T> {}
+
+class A239<T> {}
+
+class A240<T> {}
+
+class A241<T> {}
+
+class A242<T> {}
+
+class A243<T> {}
+
+class A244<T> {}
+
+class A245<T> {}
+
+class A246<T> {}
+
+class A247<T> {}
+
+class A248<T> {}
+
+class A249<T> {}
+
+class A250<T> {}
+
+class A251<T> {}
+
+class A252<T> {}
+
+class A253<T> {}
+
+class A254<T> {}
+
+class A255<T> {}
+
+class A256<T> {}
+
+class A257<T> {}
+
+class A258<T> {}
+
+class A259<T> {}
+
+class A260<T> {}
+
+class A261<T> {}
+
+class A262<T> {}
+
+class A263<T> {}
+
+class A264<T> {}
+
+class A265<T> {}
+
+class A266<T> {}
+
+class A267<T> {}
+
+class A268<T> {}
+
+class A269<T> {}
+
+class A270<T> {}
+
+class A271<T> {}
+
+class A272<T> {}
+
+class A273<T> {}
+
+class A274<T> {}
+
+class A275<T> {}
+
+class A276<T> {}
+
+class A277<T> {}
+
+class A278<T> {}
+
+class A279<T> {}
+
+class A280<T> {}
+
+class A281<T> {}
+
+class A282<T> {}
+
+class A283<T> {}
+
+class A284<T> {}
+
+class A285<T> {}
+
+class A286<T> {}
+
+class A287<T> {}
+
+class A288<T> {}
+
+class A289<T> {}
+
+class A290<T> {}
+
+class A291<T> {}
+
+class A292<T> {}
+
+class A293<T> {}
+
+class A294<T> {}
+
+class A295<T> {}
+
+class A296<T> {}
+
+class A297<T> {}
+
+class A298<T> {}
+
+class A299<T> {}
+
+class A300<T> {}
+
+class A301<T> {}
+
+class A302<T> {}
+
+class A303<T> {}
+
+class A304<T> {}
+
+class A305<T> {}
+
+class A306<T> {}
+
+class A307<T> {}
+
+class A308<T> {}
+
+class A309<T> {}
+
+class A310<T> {}
+
+class A311<T> {}
+
+class A312<T> {}
+
+class A313<T> {}
+
+class A314<T> {}
+
+class A315<T> {}
+
+class A316<T> {}
+
+class A317<T> {}
+
+class A318<T> {}
+
+class A319<T> {}
+
+class A320<T> {}
+
+class A321<T> {}
+
+class A322<T> {}
+
+class A323<T> {}
+
+class A324<T> {}
+
+class A325<T> {}
+
+class A326<T> {}
+
+class A327<T> {}
+
+class A328<T> {}
+
+class A329<T> {}
+
+class A330<T> {}
+
+class A331<T> {}
+
+class A332<T> {}
+
+class A333<T> {}
+
+class A334<T> {}
+
+class A335<T> {}
+
+class A336<T> {}
+
+class A337<T> {}
+
+class A338<T> {}
+
+class A339<T> {}
+
+class A340<T> {}
+
+class A341<T> {}
+
+class A342<T> {}
+
+class A343<T> {}
+
+class A344<T> {}
+
+class A345<T> {}
+
+class A346<T> {}
+
+class A347<T> {}
+
+class A348<T> {}
+
+class A349<T> {}
+
+class A350<T> {}
+
+class A351<T> {}
+
+class A352<T> {}
+
+class A353<T> {}
+
+class A354<T> {}
+
+class A355<T> {}
+
+class A356<T> {}
+
+class A357<T> {}
+
+class A358<T> {}
+
+class A359<T> {}
+
+class A360<T> {}
+
+class A361<T> {}
+
+class A362<T> {}
+
+class A363<T> {}
+
+class A364<T> {}
+
+class A365<T> {}
+
+class A366<T> {}
+
+class A367<T> {}
+
+class A368<T> {}
+
+class A369<T> {}
+
+class A370<T> {}
+
+class A371<T> {}
+
+class A372<T> {}
+
+class A373<T> {}
+
+class A374<T> {}
+
+class A375<T> {}
+
+class A376<T> {}
+
+class A377<T> {}
+
+class A378<T> {}
+
+class A379<T> {}
+
+class A380<T> {}
+
+class A381<T> {}
+
+class A382<T> {}
+
+class A383<T> {}
+
+class A384<T> {}
+
+class A385<T> {}
+
+class A386<T> {}
+
+class A387<T> {}
+
+class A388<T> {}
+
+class A389<T> {}
+
+class A390<T> {}
+
+class A391<T> {}
+
+class A392<T> {}
+
+class A393<T> {}
+
+class A394<T> {}
+
+class A395<T> {}
+
+class A396<T> {}
+
+class A397<T> {}
+
+class A398<T> {}
+
+class A399<T> {}
+
+class A400<T> {}
+
+class A401<T> {}
+
+class A402<T> {}
+
+class A403<T> {}
+
+class A404<T> {}
+
+class A405<T> {}
+
+class A406<T> {}
+
+class A407<T> {}
+
+class A408<T> {}
+
+class A409<T> {}
+
+class A410<T> {}
+
+class A411<T> {}
+
+class A412<T> {}
+
+class A413<T> {}
+
+class A414<T> {}
+
+class A415<T> {}
+
+class A416<T> {}
+
+class A417<T> {}
+
+class A418<T> {}
+
+class A419<T> {}
+
+class A420<T> {}
+
+class A421<T> {}
+
+class A422<T> {}
+
+class A423<T> {}
+
+class A424<T> {}
+
+class A425<T> {}
+
+class A426<T> {}
+
+class A427<T> {}
+
+class A428<T> {}
+
+class A429<T> {}
+
+class A430<T> {}
+
+class A431<T> {}
+
+class A432<T> {}
+
+class A433<T> {}
+
+class A434<T> {}
+
+class A435<T> {}
+
+class A436<T> {}
+
+class A437<T> {}
+
+class A438<T> {}
+
+class A439<T> {}
+
+class A440<T> {}
+
+class A441<T> {}
+
+class A442<T> {}
+
+class A443<T> {}
+
+class A444<T> {}
+
+class A445<T> {}
+
+class A446<T> {}
+
+class A447<T> {}
+
+class A448<T> {}
+
+class A449<T> {}
+
+class A450<T> {}
+
+class A451<T> {}
+
+class A452<T> {}
+
+class A453<T> {}
+
+class A454<T> {}
+
+class A455<T> {}
+
+class A456<T> {}
+
+class A457<T> {}
+
+class A458<T> {}
+
+class A459<T> {}
+
+class A460<T> {}
+
+class A461<T> {}
+
+class A462<T> {}
+
+class A463<T> {}
+
+class A464<T> {}
+
+class A465<T> {}
+
+class A466<T> {}
+
+class A467<T> {}
+
+class A468<T> {}
+
+class A469<T> {}
+
+class A470<T> {}
+
+class A471<T> {}
+
+class A472<T> {}
+
+class A473<T> {}
+
+class A474<T> {}
+
+class A475<T> {}
+
+class A476<T> {}
+
+class A477<T> {}
+
+class A478<T> {}
+
+class A479<T> {}
+
+class A480<T> {}
+
+class A481<T> {}
+
+class A482<T> {}
+
+class A483<T> {}
+
+class A484<T> {}
+
+class A485<T> {}
+
+class A486<T> {}
+
+class A487<T> {}
+
+class A488<T> {}
+
+class A489<T> {}
+
+class A490<T> {}
+
+class A491<T> {}
+
+class A492<T> {}
+
+class A493<T> {}
+
+class A494<T> {}
+
+class A495<T> {}
+
+class A496<T> {}
+
+class A497<T> {}
+
+class A498<T> {}
+
+class A499<T> {}
+
+class A500<T> {}
+
+class A501<T> {}
+
+class A502<T> {}
+
+class A503<T> {}
+
+class A504<T> {}
+
+class A505<T> {}
+
+class A506<T> {}
+
+class A507<T> {}
+
+class A508<T> {}
+
+class A509<T> {}
+
+class A510<T> {}
+
+class A511<T> {}
+
+class A512<T> {}
+
+class A513<T> {}
+
+class A514<T> {}
+
+class A515<T> {}
+
+class A516<T> {}
+
+class A517<T> {}
+
+class A518<T> {}
+
+class A519<T> {}
+
+class A520<T> {}
+
+class A521<T> {}
+
+class A522<T> {}
+
+class A523<T> {}
+
+class A524<T> {}
+
+class A525<T> {}
+
+class A526<T> {}
+
+class A527<T> {}
+
+class A528<T> {}
+
+class A529<T> {}
+
+class A530<T> {}
+
+class A531<T> {}
+
+class A532<T> {}
+
+class A533<T> {}
+
+class A534<T> {}
+
+class A535<T> {}
+
+class A536<T> {}
+
+class A537<T> {}
+
+class A538<T> {}
+
+class A539<T> {}
+
+class A540<T> {}
+
+class A541<T> {}
+
+class A542<T> {}
+
+class A543<T> {}
+
+class A544<T> {}
+
+class A545<T> {}
+
+class A546<T> {}
+
+class A547<T> {}
+
+class A548<T> {}
+
+class A549<T> {}
+
+class A550<T> {}
+
+class A551<T> {}
+
+class A552<T> {}
+
+class A553<T> {}
+
+class A554<T> {}
+
+class A555<T> {}
+
+class A556<T> {}
+
+class A557<T> {}
+
+class A558<T> {}
+
+class A559<T> {}
+
+class A560<T> {}
+
+class A561<T> {}
+
+class A562<T> {}
+
+class A563<T> {}
+
+class A564<T> {}
+
+class A565<T> {}
+
+class A566<T> {}
+
+class A567<T> {}
+
+class A568<T> {}
+
+class A569<T> {}
+
+class A570<T> {}
+
+class A571<T> {}
+
+class A572<T> {}
+
+class A573<T> {}
+
+class A574<T> {}
+
+class A575<T> {}
+
+class A576<T> {}
+
+class A577<T> {}
+
+class A578<T> {}
+
+class A579<T> {}
+
+class A580<T> {}
+
+class A581<T> {}
+
+class A582<T> {}
+
+class A583<T> {}
+
+class A584<T> {}
+
+class A585<T> {}
+
+class A586<T> {}
+
+class A587<T> {}
+
+class A588<T> {}
+
+class A589<T> {}
+
+class A590<T> {}
+
+class A591<T> {}
+
+class A592<T> {}
+
+class A593<T> {}
+
+class A594<T> {}
+
+class A595<T> {}
+
+class A596<T> {}
+
+class A597<T> {}
+
+class A598<T> {}
+
+class A599<T> {}
+
+class A600<T> {}
+
+class A601<T> {}
+
+class A602<T> {}
+
+class A603<T> {}
+
+class A604<T> {}
+
+class A605<T> {}
+
+class A606<T> {}
+
+class A607<T> {}
+
+class A608<T> {}
+
+class A609<T> {}
+
+class A610<T> {}
+
+class A611<T> {}
+
+class A612<T> {}
+
+class A613<T> {}
+
+class A614<T> {}
+
+class A615<T> {}
+
+class A616<T> {}
+
+class A617<T> {}
+
+class A618<T> {}
+
+class A619<T> {}
+
+class A620<T> {}
+
+class A621<T> {}
+
+class A622<T> {}
+
+class A623<T> {}
+
+class A624<T> {}
+
+class A625<T> {}
+
+class A626<T> {}
+
+class A627<T> {}
+
+class A628<T> {}
+
+class A629<T> {}
+
+class A630<T> {}
+
+class A631<T> {}
+
+class A632<T> {}
+
+class A633<T> {}
+
+class A634<T> {}
+
+class A635<T> {}
+
+class A636<T> {}
+
+class A637<T> {}
+
+class A638<T> {}
+
+class A639<T> {}
+
+class A640<T> {}
+
+class A641<T> {}
+
+class A642<T> {}
+
+class A643<T> {}
+
+class A644<T> {}
+
+class A645<T> {}
+
+class A646<T> {}
+
+class A647<T> {}
+
+class A648<T> {}
+
+class A649<T> {}
+
+class A650<T> {}
+
+class A651<T> {}
+
+class A652<T> {}
+
+class A653<T> {}
+
+class A654<T> {}
+
+class A655<T> {}
+
+class A656<T> {}
+
+class A657<T> {}
+
+class A658<T> {}
+
+class A659<T> {}
+
+class A660<T> {}
+
+class A661<T> {}
+
+class A662<T> {}
+
+class A663<T> {}
+
+class A664<T> {}
+
+class A665<T> {}
+
+class A666<T> {}
+
+class A667<T> {}
+
+class A668<T> {}
+
+class A669<T> {}
+
+class A670<T> {}
+
+class A671<T> {}
+
+class A672<T> {}
+
+class A673<T> {}
+
+class A674<T> {}
+
+class A675<T> {}
+
+class A676<T> {}
+
+class A677<T> {}
+
+class A678<T> {}
+
+class A679<T> {}
+
+class A680<T> {}
+
+class A681<T> {}
+
+class A682<T> {}
+
+class A683<T> {}
+
+class A684<T> {}
+
+class A685<T> {}
+
+class A686<T> {}
+
+class A687<T> {}
+
+class A688<T> {}
+
+class A689<T> {}
+
+class A690<T> {}
+
+class A691<T> {}
+
+class A692<T> {}
+
+class A693<T> {}
+
+class A694<T> {}
+
+class A695<T> {}
+
+class A696<T> {}
+
+class A697<T> {}
+
+class A698<T> {}
+
+class A699<T> {}
+
+class A700<T> {}
+
+class A701<T> {}
+
+class A702<T> {}
+
+class A703<T> {}
+
+class A704<T> {}
+
+class A705<T> {}
+
+class A706<T> {}
+
+class A707<T> {}
+
+class A708<T> {}
+
+class A709<T> {}
+
+class A710<T> {}
+
+class A711<T> {}
+
+class A712<T> {}
+
+class A713<T> {}
+
+class A714<T> {}
+
+class A715<T> {}
+
+class A716<T> {}
+
+class A717<T> {}
+
+class A718<T> {}
+
+class A719<T> {}
+
+class A720<T> {}
+
+class A721<T> {}
+
+class A722<T> {}
+
+class A723<T> {}
+
+class A724<T> {}
+
+class A725<T> {}
+
+class A726<T> {}
+
+class A727<T> {}
+
+class A728<T> {}
+
+class A729<T> {}
+
+class A730<T> {}
+
+class A731<T> {}
+
+class A732<T> {}
+
+class A733<T> {}
+
+class A734<T> {}
+
+class A735<T> {}
+
+class A736<T> {}
+
+class A737<T> {}
+
+class A738<T> {}
+
+class A739<T> {}
+
+class A740<T> {}
+
+class A741<T> {}
+
+class A742<T> {}
+
+class A743<T> {}
+
+class A744<T> {}
+
+class A745<T> {}
+
+class A746<T> {}
+
+class A747<T> {}
+
+class A748<T> {}
+
+class A749<T> {}
+
+class A750<T> {}
+
+class A751<T> {}
+
+class A752<T> {}
+
+class A753<T> {}
+
+class A754<T> {}
+
+class A755<T> {}
+
+class A756<T> {}
+
+class A757<T> {}
+
+class A758<T> {}
+
+class A759<T> {}
+
+class A760<T> {}
+
+class A761<T> {}
+
+class A762<T> {}
+
+class A763<T> {}
+
+class A764<T> {}
+
+class A765<T> {}
+
+class A766<T> {}
+
+class A767<T> {}
+
+class A768<T> {}
+
+class A769<T> {}
+
+class A770<T> {}
+
+class A771<T> {}
+
+class A772<T> {}
+
+class A773<T> {}
+
+class A774<T> {}
+
+class A775<T> {}
+
+class A776<T> {}
+
+class A777<T> {}
+
+class A778<T> {}
+
+class A779<T> {}
+
+class A780<T> {}
+
+class A781<T> {}
+
+class A782<T> {}
+
+class A783<T> {}
+
+class A784<T> {}
+
+class A785<T> {}
+
+class A786<T> {}
+
+class A787<T> {}
+
+class A788<T> {}
+
+class A789<T> {}
+
+class A790<T> {}
+
+class A791<T> {}
+
+class A792<T> {}
+
+class A793<T> {}
+
+class A794<T> {}
+
+class A795<T> {}
+
+class A796<T> {}
+
+class A797<T> {}
+
+class A798<T> {}
+
+class A799<T> {}
+
+class A800<T> {}
+
+class A801<T> {}
+
+class A802<T> {}
+
+class A803<T> {}
+
+class A804<T> {}
+
+class A805<T> {}
+
+class A806<T> {}
+
+class A807<T> {}
+
+class A808<T> {}
+
+class A809<T> {}
+
+class A810<T> {}
+
+class A811<T> {}
+
+class A812<T> {}
+
+class A813<T> {}
+
+class A814<T> {}
+
+class A815<T> {}
+
+class A816<T> {}
+
+class A817<T> {}
+
+class A818<T> {}
+
+class A819<T> {}
+
+class A820<T> {}
+
+class A821<T> {}
+
+class A822<T> {}
+
+class A823<T> {}
+
+class A824<T> {}
+
+class A825<T> {}
+
+class A826<T> {}
+
+class A827<T> {}
+
+class A828<T> {}
+
+class A829<T> {}
+
+class A830<T> {}
+
+class A831<T> {}
+
+class A832<T> {}
+
+class A833<T> {}
+
+class A834<T> {}
+
+class A835<T> {}
+
+class A836<T> {}
+
+class A837<T> {}
+
+class A838<T> {}
+
+class A839<T> {}
+
+class A840<T> {}
+
+class A841<T> {}
+
+class A842<T> {}
+
+class A843<T> {}
+
+class A844<T> {}
+
+class A845<T> {}
+
+class A846<T> {}
+
+class A847<T> {}
+
+class A848<T> {}
+
+class A849<T> {}
+
+class A850<T> {}
+
+class A851<T> {}
+
+class A852<T> {}
+
+class A853<T> {}
+
+class A854<T> {}
+
+class A855<T> {}
+
+class A856<T> {}
+
+class A857<T> {}
+
+class A858<T> {}
+
+class A859<T> {}
+
+class A860<T> {}
+
+class A861<T> {}
+
+class A862<T> {}
+
+class A863<T> {}
+
+class A864<T> {}
+
+class A865<T> {}
+
+class A866<T> {}
+
+class A867<T> {}
+
+class A868<T> {}
+
+class A869<T> {}
+
+class A870<T> {}
+
+class A871<T> {}
+
+class A872<T> {}
+
+class A873<T> {}
+
+class A874<T> {}
+
+class A875<T> {}
+
+class A876<T> {}
+
+class A877<T> {}
+
+class A878<T> {}
+
+class A879<T> {}
+
+class A880<T> {}
+
+class A881<T> {}
+
+class A882<T> {}
+
+class A883<T> {}
+
+class A884<T> {}
+
+class A885<T> {}
+
+class A886<T> {}
+
+class A887<T> {}
+
+class A888<T> {}
+
+class A889<T> {}
+
+class A890<T> {}
+
+class A891<T> {}
+
+class A892<T> {}
+
+class A893<T> {}
+
+class A894<T> {}
+
+class A895<T> {}
+
+class A896<T> {}
+
+class A897<T> {}
+
+class A898<T> {}
+
+class A899<T> {}
+
+class A900<T> {}
+
+class A901<T> {}
+
+class A902<T> {}
+
+class A903<T> {}
+
+class A904<T> {}
+
+class A905<T> {}
+
+class A906<T> {}
+
+class A907<T> {}
+
+class A908<T> {}
+
+class A909<T> {}
+
+class A910<T> {}
+
+class A911<T> {}
+
+class A912<T> {}
+
+class A913<T> {}
+
+class A914<T> {}
+
+class A915<T> {}
+
+class A916<T> {}
+
+class A917<T> {}
+
+class A918<T> {}
+
+class A919<T> {}
+
+class A920<T> {}
+
+class A921<T> {}
+
+class A922<T> {}
+
+class A923<T> {}
+
+class A924<T> {}
+
+class A925<T> {}
+
+class A926<T> {}
+
+class A927<T> {}
+
+class A928<T> {}
+
+class A929<T> {}
+
+class A930<T> {}
+
+class A931<T> {}
+
+class A932<T> {}
+
+class A933<T> {}
+
+class A934<T> {}
+
+class A935<T> {}
+
+class A936<T> {}
+
+class A937<T> {}
+
+class A938<T> {}
+
+class A939<T> {}
+
+class A940<T> {}
+
+class A941<T> {}
+
+class A942<T> {}
+
+class A943<T> {}
+
+class A944<T> {}
+
+class A945<T> {}
+
+class A946<T> {}
+
+class A947<T> {}
+
+class A948<T> {}
+
+class A949<T> {}
+
+class A950<T> {}
+
+class A951<T> {}
+
+class A952<T> {}
+
+class A953<T> {}
+
+class A954<T> {}
+
+class A955<T> {}
+
+class A956<T> {}
+
+class A957<T> {}
+
+class A958<T> {}
+
+class A959<T> {}
+
+class A960<T> {}
+
+class A961<T> {}
+
+class A962<T> {}
+
+class A963<T> {}
+
+class A964<T> {}
+
+class A965<T> {}
+
+class A966<T> {}
+
+class A967<T> {}
+
+class A968<T> {}
+
+class A969<T> {}
+
+class A970<T> {}
+
+class A971<T> {}
+
+class A972<T> {}
+
+class A973<T> {}
+
+class A974<T> {}
+
+class A975<T> {}
+
+class A976<T> {}
+
+class A977<T> {}
+
+class A978<T> {}
+
+class A979<T> {}
+
+class A980<T> {}
+
+class A981<T> {}
+
+class A982<T> {}
+
+class A983<T> {}
+
+class A984<T> {}
+
+class A985<T> {}
+
+class A986<T> {}
+
+class A987<T> {}
+
+class A988<T> {}
+
+class A989<T> {}
+
+class A990<T> {}
+
+class A991<T> {}
+
+class A992<T> {}
+
+class A993<T> {}
+
+class A994<T> {}
+
+class A995<T> {}
+
+class A996<T> {}
+
+class A997<T> {}
+
+class A998<T> {}
+
+class A999<T> {}
+
+void instantiateOnce<T>() {
+  blackhole<A0<T>>();
+  blackhole<A1<T>>();
+  blackhole<A2<T>>();
+  blackhole<A3<T>>();
+  blackhole<A4<T>>();
+  blackhole<A5<T>>();
+  blackhole<A6<T>>();
+  blackhole<A7<T>>();
+  blackhole<A8<T>>();
+  blackhole<A9<T>>();
+  blackhole<A10<T>>();
+  blackhole<A11<T>>();
+  blackhole<A12<T>>();
+  blackhole<A13<T>>();
+  blackhole<A14<T>>();
+  blackhole<A15<T>>();
+  blackhole<A16<T>>();
+  blackhole<A17<T>>();
+  blackhole<A18<T>>();
+  blackhole<A19<T>>();
+  blackhole<A20<T>>();
+  blackhole<A21<T>>();
+  blackhole<A22<T>>();
+  blackhole<A23<T>>();
+  blackhole<A24<T>>();
+  blackhole<A25<T>>();
+  blackhole<A26<T>>();
+  blackhole<A27<T>>();
+  blackhole<A28<T>>();
+  blackhole<A29<T>>();
+  blackhole<A30<T>>();
+  blackhole<A31<T>>();
+  blackhole<A32<T>>();
+  blackhole<A33<T>>();
+  blackhole<A34<T>>();
+  blackhole<A35<T>>();
+  blackhole<A36<T>>();
+  blackhole<A37<T>>();
+  blackhole<A38<T>>();
+  blackhole<A39<T>>();
+  blackhole<A40<T>>();
+  blackhole<A41<T>>();
+  blackhole<A42<T>>();
+  blackhole<A43<T>>();
+  blackhole<A44<T>>();
+  blackhole<A45<T>>();
+  blackhole<A46<T>>();
+  blackhole<A47<T>>();
+  blackhole<A48<T>>();
+  blackhole<A49<T>>();
+  blackhole<A50<T>>();
+  blackhole<A51<T>>();
+  blackhole<A52<T>>();
+  blackhole<A53<T>>();
+  blackhole<A54<T>>();
+  blackhole<A55<T>>();
+  blackhole<A56<T>>();
+  blackhole<A57<T>>();
+  blackhole<A58<T>>();
+  blackhole<A59<T>>();
+  blackhole<A60<T>>();
+  blackhole<A61<T>>();
+  blackhole<A62<T>>();
+  blackhole<A63<T>>();
+  blackhole<A64<T>>();
+  blackhole<A65<T>>();
+  blackhole<A66<T>>();
+  blackhole<A67<T>>();
+  blackhole<A68<T>>();
+  blackhole<A69<T>>();
+  blackhole<A70<T>>();
+  blackhole<A71<T>>();
+  blackhole<A72<T>>();
+  blackhole<A73<T>>();
+  blackhole<A74<T>>();
+  blackhole<A75<T>>();
+  blackhole<A76<T>>();
+  blackhole<A77<T>>();
+  blackhole<A78<T>>();
+  blackhole<A79<T>>();
+  blackhole<A80<T>>();
+  blackhole<A81<T>>();
+  blackhole<A82<T>>();
+  blackhole<A83<T>>();
+  blackhole<A84<T>>();
+  blackhole<A85<T>>();
+  blackhole<A86<T>>();
+  blackhole<A87<T>>();
+  blackhole<A88<T>>();
+  blackhole<A89<T>>();
+  blackhole<A90<T>>();
+  blackhole<A91<T>>();
+  blackhole<A92<T>>();
+  blackhole<A93<T>>();
+  blackhole<A94<T>>();
+  blackhole<A95<T>>();
+  blackhole<A96<T>>();
+  blackhole<A97<T>>();
+  blackhole<A98<T>>();
+  blackhole<A99<T>>();
+  blackhole<A100<T>>();
+  blackhole<A101<T>>();
+  blackhole<A102<T>>();
+  blackhole<A103<T>>();
+  blackhole<A104<T>>();
+  blackhole<A105<T>>();
+  blackhole<A106<T>>();
+  blackhole<A107<T>>();
+  blackhole<A108<T>>();
+  blackhole<A109<T>>();
+  blackhole<A110<T>>();
+  blackhole<A111<T>>();
+  blackhole<A112<T>>();
+  blackhole<A113<T>>();
+  blackhole<A114<T>>();
+  blackhole<A115<T>>();
+  blackhole<A116<T>>();
+  blackhole<A117<T>>();
+  blackhole<A118<T>>();
+  blackhole<A119<T>>();
+  blackhole<A120<T>>();
+  blackhole<A121<T>>();
+  blackhole<A122<T>>();
+  blackhole<A123<T>>();
+  blackhole<A124<T>>();
+  blackhole<A125<T>>();
+  blackhole<A126<T>>();
+  blackhole<A127<T>>();
+  blackhole<A128<T>>();
+  blackhole<A129<T>>();
+  blackhole<A130<T>>();
+  blackhole<A131<T>>();
+  blackhole<A132<T>>();
+  blackhole<A133<T>>();
+  blackhole<A134<T>>();
+  blackhole<A135<T>>();
+  blackhole<A136<T>>();
+  blackhole<A137<T>>();
+  blackhole<A138<T>>();
+  blackhole<A139<T>>();
+  blackhole<A140<T>>();
+  blackhole<A141<T>>();
+  blackhole<A142<T>>();
+  blackhole<A143<T>>();
+  blackhole<A144<T>>();
+  blackhole<A145<T>>();
+  blackhole<A146<T>>();
+  blackhole<A147<T>>();
+  blackhole<A148<T>>();
+  blackhole<A149<T>>();
+  blackhole<A150<T>>();
+  blackhole<A151<T>>();
+  blackhole<A152<T>>();
+  blackhole<A153<T>>();
+  blackhole<A154<T>>();
+  blackhole<A155<T>>();
+  blackhole<A156<T>>();
+  blackhole<A157<T>>();
+  blackhole<A158<T>>();
+  blackhole<A159<T>>();
+  blackhole<A160<T>>();
+  blackhole<A161<T>>();
+  blackhole<A162<T>>();
+  blackhole<A163<T>>();
+  blackhole<A164<T>>();
+  blackhole<A165<T>>();
+  blackhole<A166<T>>();
+  blackhole<A167<T>>();
+  blackhole<A168<T>>();
+  blackhole<A169<T>>();
+  blackhole<A170<T>>();
+  blackhole<A171<T>>();
+  blackhole<A172<T>>();
+  blackhole<A173<T>>();
+  blackhole<A174<T>>();
+  blackhole<A175<T>>();
+  blackhole<A176<T>>();
+  blackhole<A177<T>>();
+  blackhole<A178<T>>();
+  blackhole<A179<T>>();
+  blackhole<A180<T>>();
+  blackhole<A181<T>>();
+  blackhole<A182<T>>();
+  blackhole<A183<T>>();
+  blackhole<A184<T>>();
+  blackhole<A185<T>>();
+  blackhole<A186<T>>();
+  blackhole<A187<T>>();
+  blackhole<A188<T>>();
+  blackhole<A189<T>>();
+  blackhole<A190<T>>();
+  blackhole<A191<T>>();
+  blackhole<A192<T>>();
+  blackhole<A193<T>>();
+  blackhole<A194<T>>();
+  blackhole<A195<T>>();
+  blackhole<A196<T>>();
+  blackhole<A197<T>>();
+  blackhole<A198<T>>();
+  blackhole<A199<T>>();
+  blackhole<A200<T>>();
+  blackhole<A201<T>>();
+  blackhole<A202<T>>();
+  blackhole<A203<T>>();
+  blackhole<A204<T>>();
+  blackhole<A205<T>>();
+  blackhole<A206<T>>();
+  blackhole<A207<T>>();
+  blackhole<A208<T>>();
+  blackhole<A209<T>>();
+  blackhole<A210<T>>();
+  blackhole<A211<T>>();
+  blackhole<A212<T>>();
+  blackhole<A213<T>>();
+  blackhole<A214<T>>();
+  blackhole<A215<T>>();
+  blackhole<A216<T>>();
+  blackhole<A217<T>>();
+  blackhole<A218<T>>();
+  blackhole<A219<T>>();
+  blackhole<A220<T>>();
+  blackhole<A221<T>>();
+  blackhole<A222<T>>();
+  blackhole<A223<T>>();
+  blackhole<A224<T>>();
+  blackhole<A225<T>>();
+  blackhole<A226<T>>();
+  blackhole<A227<T>>();
+  blackhole<A228<T>>();
+  blackhole<A229<T>>();
+  blackhole<A230<T>>();
+  blackhole<A231<T>>();
+  blackhole<A232<T>>();
+  blackhole<A233<T>>();
+  blackhole<A234<T>>();
+  blackhole<A235<T>>();
+  blackhole<A236<T>>();
+  blackhole<A237<T>>();
+  blackhole<A238<T>>();
+  blackhole<A239<T>>();
+  blackhole<A240<T>>();
+  blackhole<A241<T>>();
+  blackhole<A242<T>>();
+  blackhole<A243<T>>();
+  blackhole<A244<T>>();
+  blackhole<A245<T>>();
+  blackhole<A246<T>>();
+  blackhole<A247<T>>();
+  blackhole<A248<T>>();
+  blackhole<A249<T>>();
+  blackhole<A250<T>>();
+  blackhole<A251<T>>();
+  blackhole<A252<T>>();
+  blackhole<A253<T>>();
+  blackhole<A254<T>>();
+  blackhole<A255<T>>();
+  blackhole<A256<T>>();
+  blackhole<A257<T>>();
+  blackhole<A258<T>>();
+  blackhole<A259<T>>();
+  blackhole<A260<T>>();
+  blackhole<A261<T>>();
+  blackhole<A262<T>>();
+  blackhole<A263<T>>();
+  blackhole<A264<T>>();
+  blackhole<A265<T>>();
+  blackhole<A266<T>>();
+  blackhole<A267<T>>();
+  blackhole<A268<T>>();
+  blackhole<A269<T>>();
+  blackhole<A270<T>>();
+  blackhole<A271<T>>();
+  blackhole<A272<T>>();
+  blackhole<A273<T>>();
+  blackhole<A274<T>>();
+  blackhole<A275<T>>();
+  blackhole<A276<T>>();
+  blackhole<A277<T>>();
+  blackhole<A278<T>>();
+  blackhole<A279<T>>();
+  blackhole<A280<T>>();
+  blackhole<A281<T>>();
+  blackhole<A282<T>>();
+  blackhole<A283<T>>();
+  blackhole<A284<T>>();
+  blackhole<A285<T>>();
+  blackhole<A286<T>>();
+  blackhole<A287<T>>();
+  blackhole<A288<T>>();
+  blackhole<A289<T>>();
+  blackhole<A290<T>>();
+  blackhole<A291<T>>();
+  blackhole<A292<T>>();
+  blackhole<A293<T>>();
+  blackhole<A294<T>>();
+  blackhole<A295<T>>();
+  blackhole<A296<T>>();
+  blackhole<A297<T>>();
+  blackhole<A298<T>>();
+  blackhole<A299<T>>();
+  blackhole<A300<T>>();
+  blackhole<A301<T>>();
+  blackhole<A302<T>>();
+  blackhole<A303<T>>();
+  blackhole<A304<T>>();
+  blackhole<A305<T>>();
+  blackhole<A306<T>>();
+  blackhole<A307<T>>();
+  blackhole<A308<T>>();
+  blackhole<A309<T>>();
+  blackhole<A310<T>>();
+  blackhole<A311<T>>();
+  blackhole<A312<T>>();
+  blackhole<A313<T>>();
+  blackhole<A314<T>>();
+  blackhole<A315<T>>();
+  blackhole<A316<T>>();
+  blackhole<A317<T>>();
+  blackhole<A318<T>>();
+  blackhole<A319<T>>();
+  blackhole<A320<T>>();
+  blackhole<A321<T>>();
+  blackhole<A322<T>>();
+  blackhole<A323<T>>();
+  blackhole<A324<T>>();
+  blackhole<A325<T>>();
+  blackhole<A326<T>>();
+  blackhole<A327<T>>();
+  blackhole<A328<T>>();
+  blackhole<A329<T>>();
+  blackhole<A330<T>>();
+  blackhole<A331<T>>();
+  blackhole<A332<T>>();
+  blackhole<A333<T>>();
+  blackhole<A334<T>>();
+  blackhole<A335<T>>();
+  blackhole<A336<T>>();
+  blackhole<A337<T>>();
+  blackhole<A338<T>>();
+  blackhole<A339<T>>();
+  blackhole<A340<T>>();
+  blackhole<A341<T>>();
+  blackhole<A342<T>>();
+  blackhole<A343<T>>();
+  blackhole<A344<T>>();
+  blackhole<A345<T>>();
+  blackhole<A346<T>>();
+  blackhole<A347<T>>();
+  blackhole<A348<T>>();
+  blackhole<A349<T>>();
+  blackhole<A350<T>>();
+  blackhole<A351<T>>();
+  blackhole<A352<T>>();
+  blackhole<A353<T>>();
+  blackhole<A354<T>>();
+  blackhole<A355<T>>();
+  blackhole<A356<T>>();
+  blackhole<A357<T>>();
+  blackhole<A358<T>>();
+  blackhole<A359<T>>();
+  blackhole<A360<T>>();
+  blackhole<A361<T>>();
+  blackhole<A362<T>>();
+  blackhole<A363<T>>();
+  blackhole<A364<T>>();
+  blackhole<A365<T>>();
+  blackhole<A366<T>>();
+  blackhole<A367<T>>();
+  blackhole<A368<T>>();
+  blackhole<A369<T>>();
+  blackhole<A370<T>>();
+  blackhole<A371<T>>();
+  blackhole<A372<T>>();
+  blackhole<A373<T>>();
+  blackhole<A374<T>>();
+  blackhole<A375<T>>();
+  blackhole<A376<T>>();
+  blackhole<A377<T>>();
+  blackhole<A378<T>>();
+  blackhole<A379<T>>();
+  blackhole<A380<T>>();
+  blackhole<A381<T>>();
+  blackhole<A382<T>>();
+  blackhole<A383<T>>();
+  blackhole<A384<T>>();
+  blackhole<A385<T>>();
+  blackhole<A386<T>>();
+  blackhole<A387<T>>();
+  blackhole<A388<T>>();
+  blackhole<A389<T>>();
+  blackhole<A390<T>>();
+  blackhole<A391<T>>();
+  blackhole<A392<T>>();
+  blackhole<A393<T>>();
+  blackhole<A394<T>>();
+  blackhole<A395<T>>();
+  blackhole<A396<T>>();
+  blackhole<A397<T>>();
+  blackhole<A398<T>>();
+  blackhole<A399<T>>();
+  blackhole<A400<T>>();
+  blackhole<A401<T>>();
+  blackhole<A402<T>>();
+  blackhole<A403<T>>();
+  blackhole<A404<T>>();
+  blackhole<A405<T>>();
+  blackhole<A406<T>>();
+  blackhole<A407<T>>();
+  blackhole<A408<T>>();
+  blackhole<A409<T>>();
+  blackhole<A410<T>>();
+  blackhole<A411<T>>();
+  blackhole<A412<T>>();
+  blackhole<A413<T>>();
+  blackhole<A414<T>>();
+  blackhole<A415<T>>();
+  blackhole<A416<T>>();
+  blackhole<A417<T>>();
+  blackhole<A418<T>>();
+  blackhole<A419<T>>();
+  blackhole<A420<T>>();
+  blackhole<A421<T>>();
+  blackhole<A422<T>>();
+  blackhole<A423<T>>();
+  blackhole<A424<T>>();
+  blackhole<A425<T>>();
+  blackhole<A426<T>>();
+  blackhole<A427<T>>();
+  blackhole<A428<T>>();
+  blackhole<A429<T>>();
+  blackhole<A430<T>>();
+  blackhole<A431<T>>();
+  blackhole<A432<T>>();
+  blackhole<A433<T>>();
+  blackhole<A434<T>>();
+  blackhole<A435<T>>();
+  blackhole<A436<T>>();
+  blackhole<A437<T>>();
+  blackhole<A438<T>>();
+  blackhole<A439<T>>();
+  blackhole<A440<T>>();
+  blackhole<A441<T>>();
+  blackhole<A442<T>>();
+  blackhole<A443<T>>();
+  blackhole<A444<T>>();
+  blackhole<A445<T>>();
+  blackhole<A446<T>>();
+  blackhole<A447<T>>();
+  blackhole<A448<T>>();
+  blackhole<A449<T>>();
+  blackhole<A450<T>>();
+  blackhole<A451<T>>();
+  blackhole<A452<T>>();
+  blackhole<A453<T>>();
+  blackhole<A454<T>>();
+  blackhole<A455<T>>();
+  blackhole<A456<T>>();
+  blackhole<A457<T>>();
+  blackhole<A458<T>>();
+  blackhole<A459<T>>();
+  blackhole<A460<T>>();
+  blackhole<A461<T>>();
+  blackhole<A462<T>>();
+  blackhole<A463<T>>();
+  blackhole<A464<T>>();
+  blackhole<A465<T>>();
+  blackhole<A466<T>>();
+  blackhole<A467<T>>();
+  blackhole<A468<T>>();
+  blackhole<A469<T>>();
+  blackhole<A470<T>>();
+  blackhole<A471<T>>();
+  blackhole<A472<T>>();
+  blackhole<A473<T>>();
+  blackhole<A474<T>>();
+  blackhole<A475<T>>();
+  blackhole<A476<T>>();
+  blackhole<A477<T>>();
+  blackhole<A478<T>>();
+  blackhole<A479<T>>();
+  blackhole<A480<T>>();
+  blackhole<A481<T>>();
+  blackhole<A482<T>>();
+  blackhole<A483<T>>();
+  blackhole<A484<T>>();
+  blackhole<A485<T>>();
+  blackhole<A486<T>>();
+  blackhole<A487<T>>();
+  blackhole<A488<T>>();
+  blackhole<A489<T>>();
+  blackhole<A490<T>>();
+  blackhole<A491<T>>();
+  blackhole<A492<T>>();
+  blackhole<A493<T>>();
+  blackhole<A494<T>>();
+  blackhole<A495<T>>();
+  blackhole<A496<T>>();
+  blackhole<A497<T>>();
+  blackhole<A498<T>>();
+  blackhole<A499<T>>();
+  blackhole<A500<T>>();
+  blackhole<A501<T>>();
+  blackhole<A502<T>>();
+  blackhole<A503<T>>();
+  blackhole<A504<T>>();
+  blackhole<A505<T>>();
+  blackhole<A506<T>>();
+  blackhole<A507<T>>();
+  blackhole<A508<T>>();
+  blackhole<A509<T>>();
+  blackhole<A510<T>>();
+  blackhole<A511<T>>();
+  blackhole<A512<T>>();
+  blackhole<A513<T>>();
+  blackhole<A514<T>>();
+  blackhole<A515<T>>();
+  blackhole<A516<T>>();
+  blackhole<A517<T>>();
+  blackhole<A518<T>>();
+  blackhole<A519<T>>();
+  blackhole<A520<T>>();
+  blackhole<A521<T>>();
+  blackhole<A522<T>>();
+  blackhole<A523<T>>();
+  blackhole<A524<T>>();
+  blackhole<A525<T>>();
+  blackhole<A526<T>>();
+  blackhole<A527<T>>();
+  blackhole<A528<T>>();
+  blackhole<A529<T>>();
+  blackhole<A530<T>>();
+  blackhole<A531<T>>();
+  blackhole<A532<T>>();
+  blackhole<A533<T>>();
+  blackhole<A534<T>>();
+  blackhole<A535<T>>();
+  blackhole<A536<T>>();
+  blackhole<A537<T>>();
+  blackhole<A538<T>>();
+  blackhole<A539<T>>();
+  blackhole<A540<T>>();
+  blackhole<A541<T>>();
+  blackhole<A542<T>>();
+  blackhole<A543<T>>();
+  blackhole<A544<T>>();
+  blackhole<A545<T>>();
+  blackhole<A546<T>>();
+  blackhole<A547<T>>();
+  blackhole<A548<T>>();
+  blackhole<A549<T>>();
+  blackhole<A550<T>>();
+  blackhole<A551<T>>();
+  blackhole<A552<T>>();
+  blackhole<A553<T>>();
+  blackhole<A554<T>>();
+  blackhole<A555<T>>();
+  blackhole<A556<T>>();
+  blackhole<A557<T>>();
+  blackhole<A558<T>>();
+  blackhole<A559<T>>();
+  blackhole<A560<T>>();
+  blackhole<A561<T>>();
+  blackhole<A562<T>>();
+  blackhole<A563<T>>();
+  blackhole<A564<T>>();
+  blackhole<A565<T>>();
+  blackhole<A566<T>>();
+  blackhole<A567<T>>();
+  blackhole<A568<T>>();
+  blackhole<A569<T>>();
+  blackhole<A570<T>>();
+  blackhole<A571<T>>();
+  blackhole<A572<T>>();
+  blackhole<A573<T>>();
+  blackhole<A574<T>>();
+  blackhole<A575<T>>();
+  blackhole<A576<T>>();
+  blackhole<A577<T>>();
+  blackhole<A578<T>>();
+  blackhole<A579<T>>();
+  blackhole<A580<T>>();
+  blackhole<A581<T>>();
+  blackhole<A582<T>>();
+  blackhole<A583<T>>();
+  blackhole<A584<T>>();
+  blackhole<A585<T>>();
+  blackhole<A586<T>>();
+  blackhole<A587<T>>();
+  blackhole<A588<T>>();
+  blackhole<A589<T>>();
+  blackhole<A590<T>>();
+  blackhole<A591<T>>();
+  blackhole<A592<T>>();
+  blackhole<A593<T>>();
+  blackhole<A594<T>>();
+  blackhole<A595<T>>();
+  blackhole<A596<T>>();
+  blackhole<A597<T>>();
+  blackhole<A598<T>>();
+  blackhole<A599<T>>();
+  blackhole<A600<T>>();
+  blackhole<A601<T>>();
+  blackhole<A602<T>>();
+  blackhole<A603<T>>();
+  blackhole<A604<T>>();
+  blackhole<A605<T>>();
+  blackhole<A606<T>>();
+  blackhole<A607<T>>();
+  blackhole<A608<T>>();
+  blackhole<A609<T>>();
+  blackhole<A610<T>>();
+  blackhole<A611<T>>();
+  blackhole<A612<T>>();
+  blackhole<A613<T>>();
+  blackhole<A614<T>>();
+  blackhole<A615<T>>();
+  blackhole<A616<T>>();
+  blackhole<A617<T>>();
+  blackhole<A618<T>>();
+  blackhole<A619<T>>();
+  blackhole<A620<T>>();
+  blackhole<A621<T>>();
+  blackhole<A622<T>>();
+  blackhole<A623<T>>();
+  blackhole<A624<T>>();
+  blackhole<A625<T>>();
+  blackhole<A626<T>>();
+  blackhole<A627<T>>();
+  blackhole<A628<T>>();
+  blackhole<A629<T>>();
+  blackhole<A630<T>>();
+  blackhole<A631<T>>();
+  blackhole<A632<T>>();
+  blackhole<A633<T>>();
+  blackhole<A634<T>>();
+  blackhole<A635<T>>();
+  blackhole<A636<T>>();
+  blackhole<A637<T>>();
+  blackhole<A638<T>>();
+  blackhole<A639<T>>();
+  blackhole<A640<T>>();
+  blackhole<A641<T>>();
+  blackhole<A642<T>>();
+  blackhole<A643<T>>();
+  blackhole<A644<T>>();
+  blackhole<A645<T>>();
+  blackhole<A646<T>>();
+  blackhole<A647<T>>();
+  blackhole<A648<T>>();
+  blackhole<A649<T>>();
+  blackhole<A650<T>>();
+  blackhole<A651<T>>();
+  blackhole<A652<T>>();
+  blackhole<A653<T>>();
+  blackhole<A654<T>>();
+  blackhole<A655<T>>();
+  blackhole<A656<T>>();
+  blackhole<A657<T>>();
+  blackhole<A658<T>>();
+  blackhole<A659<T>>();
+  blackhole<A660<T>>();
+  blackhole<A661<T>>();
+  blackhole<A662<T>>();
+  blackhole<A663<T>>();
+  blackhole<A664<T>>();
+  blackhole<A665<T>>();
+  blackhole<A666<T>>();
+  blackhole<A667<T>>();
+  blackhole<A668<T>>();
+  blackhole<A669<T>>();
+  blackhole<A670<T>>();
+  blackhole<A671<T>>();
+  blackhole<A672<T>>();
+  blackhole<A673<T>>();
+  blackhole<A674<T>>();
+  blackhole<A675<T>>();
+  blackhole<A676<T>>();
+  blackhole<A677<T>>();
+  blackhole<A678<T>>();
+  blackhole<A679<T>>();
+  blackhole<A680<T>>();
+  blackhole<A681<T>>();
+  blackhole<A682<T>>();
+  blackhole<A683<T>>();
+  blackhole<A684<T>>();
+  blackhole<A685<T>>();
+  blackhole<A686<T>>();
+  blackhole<A687<T>>();
+  blackhole<A688<T>>();
+  blackhole<A689<T>>();
+  blackhole<A690<T>>();
+  blackhole<A691<T>>();
+  blackhole<A692<T>>();
+  blackhole<A693<T>>();
+  blackhole<A694<T>>();
+  blackhole<A695<T>>();
+  blackhole<A696<T>>();
+  blackhole<A697<T>>();
+  blackhole<A698<T>>();
+  blackhole<A699<T>>();
+  blackhole<A700<T>>();
+  blackhole<A701<T>>();
+  blackhole<A702<T>>();
+  blackhole<A703<T>>();
+  blackhole<A704<T>>();
+  blackhole<A705<T>>();
+  blackhole<A706<T>>();
+  blackhole<A707<T>>();
+  blackhole<A708<T>>();
+  blackhole<A709<T>>();
+  blackhole<A710<T>>();
+  blackhole<A711<T>>();
+  blackhole<A712<T>>();
+  blackhole<A713<T>>();
+  blackhole<A714<T>>();
+  blackhole<A715<T>>();
+  blackhole<A716<T>>();
+  blackhole<A717<T>>();
+  blackhole<A718<T>>();
+  blackhole<A719<T>>();
+  blackhole<A720<T>>();
+  blackhole<A721<T>>();
+  blackhole<A722<T>>();
+  blackhole<A723<T>>();
+  blackhole<A724<T>>();
+  blackhole<A725<T>>();
+  blackhole<A726<T>>();
+  blackhole<A727<T>>();
+  blackhole<A728<T>>();
+  blackhole<A729<T>>();
+  blackhole<A730<T>>();
+  blackhole<A731<T>>();
+  blackhole<A732<T>>();
+  blackhole<A733<T>>();
+  blackhole<A734<T>>();
+  blackhole<A735<T>>();
+  blackhole<A736<T>>();
+  blackhole<A737<T>>();
+  blackhole<A738<T>>();
+  blackhole<A739<T>>();
+  blackhole<A740<T>>();
+  blackhole<A741<T>>();
+  blackhole<A742<T>>();
+  blackhole<A743<T>>();
+  blackhole<A744<T>>();
+  blackhole<A745<T>>();
+  blackhole<A746<T>>();
+  blackhole<A747<T>>();
+  blackhole<A748<T>>();
+  blackhole<A749<T>>();
+  blackhole<A750<T>>();
+  blackhole<A751<T>>();
+  blackhole<A752<T>>();
+  blackhole<A753<T>>();
+  blackhole<A754<T>>();
+  blackhole<A755<T>>();
+  blackhole<A756<T>>();
+  blackhole<A757<T>>();
+  blackhole<A758<T>>();
+  blackhole<A759<T>>();
+  blackhole<A760<T>>();
+  blackhole<A761<T>>();
+  blackhole<A762<T>>();
+  blackhole<A763<T>>();
+  blackhole<A764<T>>();
+  blackhole<A765<T>>();
+  blackhole<A766<T>>();
+  blackhole<A767<T>>();
+  blackhole<A768<T>>();
+  blackhole<A769<T>>();
+  blackhole<A770<T>>();
+  blackhole<A771<T>>();
+  blackhole<A772<T>>();
+  blackhole<A773<T>>();
+  blackhole<A774<T>>();
+  blackhole<A775<T>>();
+  blackhole<A776<T>>();
+  blackhole<A777<T>>();
+  blackhole<A778<T>>();
+  blackhole<A779<T>>();
+  blackhole<A780<T>>();
+  blackhole<A781<T>>();
+  blackhole<A782<T>>();
+  blackhole<A783<T>>();
+  blackhole<A784<T>>();
+  blackhole<A785<T>>();
+  blackhole<A786<T>>();
+  blackhole<A787<T>>();
+  blackhole<A788<T>>();
+  blackhole<A789<T>>();
+  blackhole<A790<T>>();
+  blackhole<A791<T>>();
+  blackhole<A792<T>>();
+  blackhole<A793<T>>();
+  blackhole<A794<T>>();
+  blackhole<A795<T>>();
+  blackhole<A796<T>>();
+  blackhole<A797<T>>();
+  blackhole<A798<T>>();
+  blackhole<A799<T>>();
+  blackhole<A800<T>>();
+  blackhole<A801<T>>();
+  blackhole<A802<T>>();
+  blackhole<A803<T>>();
+  blackhole<A804<T>>();
+  blackhole<A805<T>>();
+  blackhole<A806<T>>();
+  blackhole<A807<T>>();
+  blackhole<A808<T>>();
+  blackhole<A809<T>>();
+  blackhole<A810<T>>();
+  blackhole<A811<T>>();
+  blackhole<A812<T>>();
+  blackhole<A813<T>>();
+  blackhole<A814<T>>();
+  blackhole<A815<T>>();
+  blackhole<A816<T>>();
+  blackhole<A817<T>>();
+  blackhole<A818<T>>();
+  blackhole<A819<T>>();
+  blackhole<A820<T>>();
+  blackhole<A821<T>>();
+  blackhole<A822<T>>();
+  blackhole<A823<T>>();
+  blackhole<A824<T>>();
+  blackhole<A825<T>>();
+  blackhole<A826<T>>();
+  blackhole<A827<T>>();
+  blackhole<A828<T>>();
+  blackhole<A829<T>>();
+  blackhole<A830<T>>();
+  blackhole<A831<T>>();
+  blackhole<A832<T>>();
+  blackhole<A833<T>>();
+  blackhole<A834<T>>();
+  blackhole<A835<T>>();
+  blackhole<A836<T>>();
+  blackhole<A837<T>>();
+  blackhole<A838<T>>();
+  blackhole<A839<T>>();
+  blackhole<A840<T>>();
+  blackhole<A841<T>>();
+  blackhole<A842<T>>();
+  blackhole<A843<T>>();
+  blackhole<A844<T>>();
+  blackhole<A845<T>>();
+  blackhole<A846<T>>();
+  blackhole<A847<T>>();
+  blackhole<A848<T>>();
+  blackhole<A849<T>>();
+  blackhole<A850<T>>();
+  blackhole<A851<T>>();
+  blackhole<A852<T>>();
+  blackhole<A853<T>>();
+  blackhole<A854<T>>();
+  blackhole<A855<T>>();
+  blackhole<A856<T>>();
+  blackhole<A857<T>>();
+  blackhole<A858<T>>();
+  blackhole<A859<T>>();
+  blackhole<A860<T>>();
+  blackhole<A861<T>>();
+  blackhole<A862<T>>();
+  blackhole<A863<T>>();
+  blackhole<A864<T>>();
+  blackhole<A865<T>>();
+  blackhole<A866<T>>();
+  blackhole<A867<T>>();
+  blackhole<A868<T>>();
+  blackhole<A869<T>>();
+  blackhole<A870<T>>();
+  blackhole<A871<T>>();
+  blackhole<A872<T>>();
+  blackhole<A873<T>>();
+  blackhole<A874<T>>();
+  blackhole<A875<T>>();
+  blackhole<A876<T>>();
+  blackhole<A877<T>>();
+  blackhole<A878<T>>();
+  blackhole<A879<T>>();
+  blackhole<A880<T>>();
+  blackhole<A881<T>>();
+  blackhole<A882<T>>();
+  blackhole<A883<T>>();
+  blackhole<A884<T>>();
+  blackhole<A885<T>>();
+  blackhole<A886<T>>();
+  blackhole<A887<T>>();
+  blackhole<A888<T>>();
+  blackhole<A889<T>>();
+  blackhole<A890<T>>();
+  blackhole<A891<T>>();
+  blackhole<A892<T>>();
+  blackhole<A893<T>>();
+  blackhole<A894<T>>();
+  blackhole<A895<T>>();
+  blackhole<A896<T>>();
+  blackhole<A897<T>>();
+  blackhole<A898<T>>();
+  blackhole<A899<T>>();
+  blackhole<A900<T>>();
+  blackhole<A901<T>>();
+  blackhole<A902<T>>();
+  blackhole<A903<T>>();
+  blackhole<A904<T>>();
+  blackhole<A905<T>>();
+  blackhole<A906<T>>();
+  blackhole<A907<T>>();
+  blackhole<A908<T>>();
+  blackhole<A909<T>>();
+  blackhole<A910<T>>();
+  blackhole<A911<T>>();
+  blackhole<A912<T>>();
+  blackhole<A913<T>>();
+  blackhole<A914<T>>();
+  blackhole<A915<T>>();
+  blackhole<A916<T>>();
+  blackhole<A917<T>>();
+  blackhole<A918<T>>();
+  blackhole<A919<T>>();
+  blackhole<A920<T>>();
+  blackhole<A921<T>>();
+  blackhole<A922<T>>();
+  blackhole<A923<T>>();
+  blackhole<A924<T>>();
+  blackhole<A925<T>>();
+  blackhole<A926<T>>();
+  blackhole<A927<T>>();
+  blackhole<A928<T>>();
+  blackhole<A929<T>>();
+  blackhole<A930<T>>();
+  blackhole<A931<T>>();
+  blackhole<A932<T>>();
+  blackhole<A933<T>>();
+  blackhole<A934<T>>();
+  blackhole<A935<T>>();
+  blackhole<A936<T>>();
+  blackhole<A937<T>>();
+  blackhole<A938<T>>();
+  blackhole<A939<T>>();
+  blackhole<A940<T>>();
+  blackhole<A941<T>>();
+  blackhole<A942<T>>();
+  blackhole<A943<T>>();
+  blackhole<A944<T>>();
+  blackhole<A945<T>>();
+  blackhole<A946<T>>();
+  blackhole<A947<T>>();
+  blackhole<A948<T>>();
+  blackhole<A949<T>>();
+  blackhole<A950<T>>();
+  blackhole<A951<T>>();
+  blackhole<A952<T>>();
+  blackhole<A953<T>>();
+  blackhole<A954<T>>();
+  blackhole<A955<T>>();
+  blackhole<A956<T>>();
+  blackhole<A957<T>>();
+  blackhole<A958<T>>();
+  blackhole<A959<T>>();
+  blackhole<A960<T>>();
+  blackhole<A961<T>>();
+  blackhole<A962<T>>();
+  blackhole<A963<T>>();
+  blackhole<A964<T>>();
+  blackhole<A965<T>>();
+  blackhole<A966<T>>();
+  blackhole<A967<T>>();
+  blackhole<A968<T>>();
+  blackhole<A969<T>>();
+  blackhole<A970<T>>();
+  blackhole<A971<T>>();
+  blackhole<A972<T>>();
+  blackhole<A973<T>>();
+  blackhole<A974<T>>();
+  blackhole<A975<T>>();
+  blackhole<A976<T>>();
+  blackhole<A977<T>>();
+  blackhole<A978<T>>();
+  blackhole<A979<T>>();
+  blackhole<A980<T>>();
+  blackhole<A981<T>>();
+  blackhole<A982<T>>();
+  blackhole<A983<T>>();
+  blackhole<A984<T>>();
+  blackhole<A985<T>>();
+  blackhole<A986<T>>();
+  blackhole<A987<T>>();
+  blackhole<A988<T>>();
+  blackhole<A989<T>>();
+  blackhole<A990<T>>();
+  blackhole<A991<T>>();
+  blackhole<A992<T>>();
+  blackhole<A993<T>>();
+  blackhole<A994<T>>();
+  blackhole<A995<T>>();
+  blackhole<A996<T>>();
+  blackhole<A997<T>>();
+  blackhole<A998<T>>();
+  blackhole<A999<T>>();
+}
+
+class C0 {}
+
+class C1 {}
+
+class C2 {}
+
+class C3 {}
+
+class C4 {}
+
+class C5 {}
+
+class C6 {}
+
+class C7 {}
+
+class C8 {}
+
+class C9 {}
+
+class C10 {}
+
+class C11 {}
+
+class C12 {}
+
+class C13 {}
+
+class C14 {}
+
+class C15 {}
+
+class C16 {}
+
+class C17 {}
+
+class C18 {}
+
+class C19 {}
+
+class C20 {}
+
+class C21 {}
+
+class C22 {}
+
+class C23 {}
+
+class C24 {}
+
+class C25 {}
+
+class C26 {}
+
+class C27 {}
+
+class C28 {}
+
+class C29 {}
+
+class C30 {}
+
+class C31 {}
+
+class C32 {}
+
+class C33 {}
+
+class C34 {}
+
+class C35 {}
+
+class C36 {}
+
+class C37 {}
+
+class C38 {}
+
+class C39 {}
+
+class C40 {}
+
+class C41 {}
+
+class C42 {}
+
+class C43 {}
+
+class C44 {}
+
+class C45 {}
+
+class C46 {}
+
+class C47 {}
+
+class C48 {}
+
+class C49 {}
+
+class C50 {}
+
+class C51 {}
+
+class C52 {}
+
+class C53 {}
+
+class C54 {}
+
+class C55 {}
+
+class C56 {}
+
+class C57 {}
+
+class C58 {}
+
+class C59 {}
+
+class C60 {}
+
+class C61 {}
+
+class C62 {}
+
+class C63 {}
+
+class C64 {}
+
+class C65 {}
+
+class C66 {}
+
+class C67 {}
+
+class C68 {}
+
+class C69 {}
+
+class C70 {}
+
+class C71 {}
+
+class C72 {}
+
+class C73 {}
+
+class C74 {}
+
+class C75 {}
+
+class C76 {}
+
+class C77 {}
+
+class C78 {}
+
+class C79 {}
+
+class C80 {}
+
+class C81 {}
+
+class C82 {}
+
+class C83 {}
+
+class C84 {}
+
+class C85 {}
+
+class C86 {}
+
+class C87 {}
+
+class C88 {}
+
+class C89 {}
+
+class C90 {}
+
+class C91 {}
+
+class C92 {}
+
+class C93 {}
+
+class C94 {}
+
+class C95 {}
+
+class C96 {}
+
+class C97 {}
+
+class C98 {}
+
+class C99 {}
+
+class C100 {}
+
+class C101 {}
+
+class C102 {}
+
+class C103 {}
+
+class C104 {}
+
+class C105 {}
+
+class C106 {}
+
+class C107 {}
+
+class C108 {}
+
+class C109 {}
+
+class C110 {}
+
+class C111 {}
+
+class C112 {}
+
+class C113 {}
+
+class C114 {}
+
+class C115 {}
+
+class C116 {}
+
+class C117 {}
+
+class C118 {}
+
+class C119 {}
+
+class C120 {}
+
+class C121 {}
+
+class C122 {}
+
+class C123 {}
+
+class C124 {}
+
+class C125 {}
+
+class C126 {}
+
+class C127 {}
+
+class C128 {}
+
+class C129 {}
+
+class C130 {}
+
+class C131 {}
+
+class C132 {}
+
+class C133 {}
+
+class C134 {}
+
+class C135 {}
+
+class C136 {}
+
+class C137 {}
+
+class C138 {}
+
+class C139 {}
+
+class C140 {}
+
+class C141 {}
+
+class C142 {}
+
+class C143 {}
+
+class C144 {}
+
+class C145 {}
+
+class C146 {}
+
+class C147 {}
+
+class C148 {}
+
+class C149 {}
+
+class C150 {}
+
+class C151 {}
+
+class C152 {}
+
+class C153 {}
+
+class C154 {}
+
+class C155 {}
+
+class C156 {}
+
+class C157 {}
+
+class C158 {}
+
+class C159 {}
+
+class C160 {}
+
+class C161 {}
+
+class C162 {}
+
+class C163 {}
+
+class C164 {}
+
+class C165 {}
+
+class C166 {}
+
+class C167 {}
+
+class C168 {}
+
+class C169 {}
+
+class C170 {}
+
+class C171 {}
+
+class C172 {}
+
+class C173 {}
+
+class C174 {}
+
+class C175 {}
+
+class C176 {}
+
+class C177 {}
+
+class C178 {}
+
+class C179 {}
+
+class C180 {}
+
+class C181 {}
+
+class C182 {}
+
+class C183 {}
+
+class C184 {}
+
+class C185 {}
+
+class C186 {}
+
+class C187 {}
+
+class C188 {}
+
+class C189 {}
+
+class C190 {}
+
+class C191 {}
+
+class C192 {}
+
+class C193 {}
+
+class C194 {}
+
+class C195 {}
+
+class C196 {}
+
+class C197 {}
+
+class C198 {}
+
+class C199 {}
+
+class C200 {}
+
+class C201 {}
+
+class C202 {}
+
+class C203 {}
+
+class C204 {}
+
+class C205 {}
+
+class C206 {}
+
+class C207 {}
+
+class C208 {}
+
+class C209 {}
+
+class C210 {}
+
+class C211 {}
+
+class C212 {}
+
+class C213 {}
+
+class C214 {}
+
+class C215 {}
+
+class C216 {}
+
+class C217 {}
+
+class C218 {}
+
+class C219 {}
+
+class C220 {}
+
+class C221 {}
+
+class C222 {}
+
+class C223 {}
+
+class C224 {}
+
+class C225 {}
+
+class C226 {}
+
+class C227 {}
+
+class C228 {}
+
+class C229 {}
+
+class C230 {}
+
+class C231 {}
+
+class C232 {}
+
+class C233 {}
+
+class C234 {}
+
+class C235 {}
+
+class C236 {}
+
+class C237 {}
+
+class C238 {}
+
+class C239 {}
+
+class C240 {}
+
+class C241 {}
+
+class C242 {}
+
+class C243 {}
+
+class C244 {}
+
+class C245 {}
+
+class C246 {}
+
+class C247 {}
+
+class C248 {}
+
+class C249 {}
+
+class C250 {}
+
+class C251 {}
+
+class C252 {}
+
+class C253 {}
+
+class C254 {}
+
+class C255 {}
+
+class C256 {}
+
+class C257 {}
+
+class C258 {}
+
+class C259 {}
+
+class C260 {}
+
+class C261 {}
+
+class C262 {}
+
+class C263 {}
+
+class C264 {}
+
+class C265 {}
+
+class C266 {}
+
+class C267 {}
+
+class C268 {}
+
+class C269 {}
+
+class C270 {}
+
+class C271 {}
+
+class C272 {}
+
+class C273 {}
+
+class C274 {}
+
+class C275 {}
+
+class C276 {}
+
+class C277 {}
+
+class C278 {}
+
+class C279 {}
+
+class C280 {}
+
+class C281 {}
+
+class C282 {}
+
+class C283 {}
+
+class C284 {}
+
+class C285 {}
+
+class C286 {}
+
+class C287 {}
+
+class C288 {}
+
+class C289 {}
+
+class C290 {}
+
+class C291 {}
+
+class C292 {}
+
+class C293 {}
+
+class C294 {}
+
+class C295 {}
+
+class C296 {}
+
+class C297 {}
+
+class C298 {}
+
+class C299 {}
+
+class C300 {}
+
+class C301 {}
+
+class C302 {}
+
+class C303 {}
+
+class C304 {}
+
+class C305 {}
+
+class C306 {}
+
+class C307 {}
+
+class C308 {}
+
+class C309 {}
+
+class C310 {}
+
+class C311 {}
+
+class C312 {}
+
+class C313 {}
+
+class C314 {}
+
+class C315 {}
+
+class C316 {}
+
+class C317 {}
+
+class C318 {}
+
+class C319 {}
+
+class C320 {}
+
+class C321 {}
+
+class C322 {}
+
+class C323 {}
+
+class C324 {}
+
+class C325 {}
+
+class C326 {}
+
+class C327 {}
+
+class C328 {}
+
+class C329 {}
+
+class C330 {}
+
+class C331 {}
+
+class C332 {}
+
+class C333 {}
+
+class C334 {}
+
+class C335 {}
+
+class C336 {}
+
+class C337 {}
+
+class C338 {}
+
+class C339 {}
+
+class C340 {}
+
+class C341 {}
+
+class C342 {}
+
+class C343 {}
+
+class C344 {}
+
+class C345 {}
+
+class C346 {}
+
+class C347 {}
+
+class C348 {}
+
+class C349 {}
+
+class C350 {}
+
+class C351 {}
+
+class C352 {}
+
+class C353 {}
+
+class C354 {}
+
+class C355 {}
+
+class C356 {}
+
+class C357 {}
+
+class C358 {}
+
+class C359 {}
+
+class C360 {}
+
+class C361 {}
+
+class C362 {}
+
+class C363 {}
+
+class C364 {}
+
+class C365 {}
+
+class C366 {}
+
+class C367 {}
+
+class C368 {}
+
+class C369 {}
+
+class C370 {}
+
+class C371 {}
+
+class C372 {}
+
+class C373 {}
+
+class C374 {}
+
+class C375 {}
+
+class C376 {}
+
+class C377 {}
+
+class C378 {}
+
+class C379 {}
+
+class C380 {}
+
+class C381 {}
+
+class C382 {}
+
+class C383 {}
+
+class C384 {}
+
+class C385 {}
+
+class C386 {}
+
+class C387 {}
+
+class C388 {}
+
+class C389 {}
+
+class C390 {}
+
+class C391 {}
+
+class C392 {}
+
+class C393 {}
+
+class C394 {}
+
+class C395 {}
+
+class C396 {}
+
+class C397 {}
+
+class C398 {}
+
+class C399 {}
+
+class C400 {}
+
+class C401 {}
+
+class C402 {}
+
+class C403 {}
+
+class C404 {}
+
+class C405 {}
+
+class C406 {}
+
+class C407 {}
+
+class C408 {}
+
+class C409 {}
+
+class C410 {}
+
+class C411 {}
+
+class C412 {}
+
+class C413 {}
+
+class C414 {}
+
+class C415 {}
+
+class C416 {}
+
+class C417 {}
+
+class C418 {}
+
+class C419 {}
+
+class C420 {}
+
+class C421 {}
+
+class C422 {}
+
+class C423 {}
+
+class C424 {}
+
+class C425 {}
+
+class C426 {}
+
+class C427 {}
+
+class C428 {}
+
+class C429 {}
+
+class C430 {}
+
+class C431 {}
+
+class C432 {}
+
+class C433 {}
+
+class C434 {}
+
+class C435 {}
+
+class C436 {}
+
+class C437 {}
+
+class C438 {}
+
+class C439 {}
+
+class C440 {}
+
+class C441 {}
+
+class C442 {}
+
+class C443 {}
+
+class C444 {}
+
+class C445 {}
+
+class C446 {}
+
+class C447 {}
+
+class C448 {}
+
+class C449 {}
+
+class C450 {}
+
+class C451 {}
+
+class C452 {}
+
+class C453 {}
+
+class C454 {}
+
+class C455 {}
+
+class C456 {}
+
+class C457 {}
+
+class C458 {}
+
+class C459 {}
+
+class C460 {}
+
+class C461 {}
+
+class C462 {}
+
+class C463 {}
+
+class C464 {}
+
+class C465 {}
+
+class C466 {}
+
+class C467 {}
+
+class C468 {}
+
+class C469 {}
+
+class C470 {}
+
+class C471 {}
+
+class C472 {}
+
+class C473 {}
+
+class C474 {}
+
+class C475 {}
+
+class C476 {}
+
+class C477 {}
+
+class C478 {}
+
+class C479 {}
+
+class C480 {}
+
+class C481 {}
+
+class C482 {}
+
+class C483 {}
+
+class C484 {}
+
+class C485 {}
+
+class C486 {}
+
+class C487 {}
+
+class C488 {}
+
+class C489 {}
+
+class C490 {}
+
+class C491 {}
+
+class C492 {}
+
+class C493 {}
+
+class C494 {}
+
+class C495 {}
+
+class C496 {}
+
+class C497 {}
+
+class C498 {}
+
+class C499 {}
+
+class C500 {}
+
+class C501 {}
+
+class C502 {}
+
+class C503 {}
+
+class C504 {}
+
+class C505 {}
+
+class C506 {}
+
+class C507 {}
+
+class C508 {}
+
+class C509 {}
+
+class C510 {}
+
+class C511 {}
+
+class C512 {}
+
+class C513 {}
+
+class C514 {}
+
+class C515 {}
+
+class C516 {}
+
+class C517 {}
+
+class C518 {}
+
+class C519 {}
+
+class C520 {}
+
+class C521 {}
+
+class C522 {}
+
+class C523 {}
+
+class C524 {}
+
+class C525 {}
+
+class C526 {}
+
+class C527 {}
+
+class C528 {}
+
+class C529 {}
+
+class C530 {}
+
+class C531 {}
+
+class C532 {}
+
+class C533 {}
+
+class C534 {}
+
+class C535 {}
+
+class C536 {}
+
+class C537 {}
+
+class C538 {}
+
+class C539 {}
+
+class C540 {}
+
+class C541 {}
+
+class C542 {}
+
+class C543 {}
+
+class C544 {}
+
+class C545 {}
+
+class C546 {}
+
+class C547 {}
+
+class C548 {}
+
+class C549 {}
+
+class C550 {}
+
+class C551 {}
+
+class C552 {}
+
+class C553 {}
+
+class C554 {}
+
+class C555 {}
+
+class C556 {}
+
+class C557 {}
+
+class C558 {}
+
+class C559 {}
+
+class C560 {}
+
+class C561 {}
+
+class C562 {}
+
+class C563 {}
+
+class C564 {}
+
+class C565 {}
+
+class C566 {}
+
+class C567 {}
+
+class C568 {}
+
+class C569 {}
+
+class C570 {}
+
+class C571 {}
+
+class C572 {}
+
+class C573 {}
+
+class C574 {}
+
+class C575 {}
+
+class C576 {}
+
+class C577 {}
+
+class C578 {}
+
+class C579 {}
+
+class C580 {}
+
+class C581 {}
+
+class C582 {}
+
+class C583 {}
+
+class C584 {}
+
+class C585 {}
+
+class C586 {}
+
+class C587 {}
+
+class C588 {}
+
+class C589 {}
+
+class C590 {}
+
+class C591 {}
+
+class C592 {}
+
+class C593 {}
+
+class C594 {}
+
+class C595 {}
+
+class C596 {}
+
+class C597 {}
+
+class C598 {}
+
+class C599 {}
+
+class C600 {}
+
+class C601 {}
+
+class C602 {}
+
+class C603 {}
+
+class C604 {}
+
+class C605 {}
+
+class C606 {}
+
+class C607 {}
+
+class C608 {}
+
+class C609 {}
+
+class C610 {}
+
+class C611 {}
+
+class C612 {}
+
+class C613 {}
+
+class C614 {}
+
+class C615 {}
+
+class C616 {}
+
+class C617 {}
+
+class C618 {}
+
+class C619 {}
+
+class C620 {}
+
+class C621 {}
+
+class C622 {}
+
+class C623 {}
+
+class C624 {}
+
+class C625 {}
+
+class C626 {}
+
+class C627 {}
+
+class C628 {}
+
+class C629 {}
+
+class C630 {}
+
+class C631 {}
+
+class C632 {}
+
+class C633 {}
+
+class C634 {}
+
+class C635 {}
+
+class C636 {}
+
+class C637 {}
+
+class C638 {}
+
+class C639 {}
+
+class C640 {}
+
+class C641 {}
+
+class C642 {}
+
+class C643 {}
+
+class C644 {}
+
+class C645 {}
+
+class C646 {}
+
+class C647 {}
+
+class C648 {}
+
+class C649 {}
+
+class C650 {}
+
+class C651 {}
+
+class C652 {}
+
+class C653 {}
+
+class C654 {}
+
+class C655 {}
+
+class C656 {}
+
+class C657 {}
+
+class C658 {}
+
+class C659 {}
+
+class C660 {}
+
+class C661 {}
+
+class C662 {}
+
+class C663 {}
+
+class C664 {}
+
+class C665 {}
+
+class C666 {}
+
+class C667 {}
+
+class C668 {}
+
+class C669 {}
+
+class C670 {}
+
+class C671 {}
+
+class C672 {}
+
+class C673 {}
+
+class C674 {}
+
+class C675 {}
+
+class C676 {}
+
+class C677 {}
+
+class C678 {}
+
+class C679 {}
+
+class C680 {}
+
+class C681 {}
+
+class C682 {}
+
+class C683 {}
+
+class C684 {}
+
+class C685 {}
+
+class C686 {}
+
+class C687 {}
+
+class C688 {}
+
+class C689 {}
+
+class C690 {}
+
+class C691 {}
+
+class C692 {}
+
+class C693 {}
+
+class C694 {}
+
+class C695 {}
+
+class C696 {}
+
+class C697 {}
+
+class C698 {}
+
+class C699 {}
+
+class C700 {}
+
+class C701 {}
+
+class C702 {}
+
+class C703 {}
+
+class C704 {}
+
+class C705 {}
+
+class C706 {}
+
+class C707 {}
+
+class C708 {}
+
+class C709 {}
+
+class C710 {}
+
+class C711 {}
+
+class C712 {}
+
+class C713 {}
+
+class C714 {}
+
+class C715 {}
+
+class C716 {}
+
+class C717 {}
+
+class C718 {}
+
+class C719 {}
+
+class C720 {}
+
+class C721 {}
+
+class C722 {}
+
+class C723 {}
+
+class C724 {}
+
+class C725 {}
+
+class C726 {}
+
+class C727 {}
+
+class C728 {}
+
+class C729 {}
+
+class C730 {}
+
+class C731 {}
+
+class C732 {}
+
+class C733 {}
+
+class C734 {}
+
+class C735 {}
+
+class C736 {}
+
+class C737 {}
+
+class C738 {}
+
+class C739 {}
+
+class C740 {}
+
+class C741 {}
+
+class C742 {}
+
+class C743 {}
+
+class C744 {}
+
+class C745 {}
+
+class C746 {}
+
+class C747 {}
+
+class C748 {}
+
+class C749 {}
+
+class C750 {}
+
+class C751 {}
+
+class C752 {}
+
+class C753 {}
+
+class C754 {}
+
+class C755 {}
+
+class C756 {}
+
+class C757 {}
+
+class C758 {}
+
+class C759 {}
+
+class C760 {}
+
+class C761 {}
+
+class C762 {}
+
+class C763 {}
+
+class C764 {}
+
+class C765 {}
+
+class C766 {}
+
+class C767 {}
+
+class C768 {}
+
+class C769 {}
+
+class C770 {}
+
+class C771 {}
+
+class C772 {}
+
+class C773 {}
+
+class C774 {}
+
+class C775 {}
+
+class C776 {}
+
+class C777 {}
+
+class C778 {}
+
+class C779 {}
+
+class C780 {}
+
+class C781 {}
+
+class C782 {}
+
+class C783 {}
+
+class C784 {}
+
+class C785 {}
+
+class C786 {}
+
+class C787 {}
+
+class C788 {}
+
+class C789 {}
+
+class C790 {}
+
+class C791 {}
+
+class C792 {}
+
+class C793 {}
+
+class C794 {}
+
+class C795 {}
+
+class C796 {}
+
+class C797 {}
+
+class C798 {}
+
+class C799 {}
+
+class C800 {}
+
+class C801 {}
+
+class C802 {}
+
+class C803 {}
+
+class C804 {}
+
+class C805 {}
+
+class C806 {}
+
+class C807 {}
+
+class C808 {}
+
+class C809 {}
+
+class C810 {}
+
+class C811 {}
+
+class C812 {}
+
+class C813 {}
+
+class C814 {}
+
+class C815 {}
+
+class C816 {}
+
+class C817 {}
+
+class C818 {}
+
+class C819 {}
+
+class C820 {}
+
+class C821 {}
+
+class C822 {}
+
+class C823 {}
+
+class C824 {}
+
+class C825 {}
+
+class C826 {}
+
+class C827 {}
+
+class C828 {}
+
+class C829 {}
+
+class C830 {}
+
+class C831 {}
+
+class C832 {}
+
+class C833 {}
+
+class C834 {}
+
+class C835 {}
+
+class C836 {}
+
+class C837 {}
+
+class C838 {}
+
+class C839 {}
+
+class C840 {}
+
+class C841 {}
+
+class C842 {}
+
+class C843 {}
+
+class C844 {}
+
+class C845 {}
+
+class C846 {}
+
+class C847 {}
+
+class C848 {}
+
+class C849 {}
+
+class C850 {}
+
+class C851 {}
+
+class C852 {}
+
+class C853 {}
+
+class C854 {}
+
+class C855 {}
+
+class C856 {}
+
+class C857 {}
+
+class C858 {}
+
+class C859 {}
+
+class C860 {}
+
+class C861 {}
+
+class C862 {}
+
+class C863 {}
+
+class C864 {}
+
+class C865 {}
+
+class C866 {}
+
+class C867 {}
+
+class C868 {}
+
+class C869 {}
+
+class C870 {}
+
+class C871 {}
+
+class C872 {}
+
+class C873 {}
+
+class C874 {}
+
+class C875 {}
+
+class C876 {}
+
+class C877 {}
+
+class C878 {}
+
+class C879 {}
+
+class C880 {}
+
+class C881 {}
+
+class C882 {}
+
+class C883 {}
+
+class C884 {}
+
+class C885 {}
+
+class C886 {}
+
+class C887 {}
+
+class C888 {}
+
+class C889 {}
+
+class C890 {}
+
+class C891 {}
+
+class C892 {}
+
+class C893 {}
+
+class C894 {}
+
+class C895 {}
+
+class C896 {}
+
+class C897 {}
+
+class C898 {}
+
+class C899 {}
+
+class C900 {}
+
+class C901 {}
+
+class C902 {}
+
+class C903 {}
+
+class C904 {}
+
+class C905 {}
+
+class C906 {}
+
+class C907 {}
+
+class C908 {}
+
+class C909 {}
+
+class C910 {}
+
+class C911 {}
+
+class C912 {}
+
+class C913 {}
+
+class C914 {}
+
+class C915 {}
+
+class C916 {}
+
+class C917 {}
+
+class C918 {}
+
+class C919 {}
+
+class C920 {}
+
+class C921 {}
+
+class C922 {}
+
+class C923 {}
+
+class C924 {}
+
+class C925 {}
+
+class C926 {}
+
+class C927 {}
+
+class C928 {}
+
+class C929 {}
+
+class C930 {}
+
+class C931 {}
+
+class C932 {}
+
+class C933 {}
+
+class C934 {}
+
+class C935 {}
+
+class C936 {}
+
+class C937 {}
+
+class C938 {}
+
+class C939 {}
+
+class C940 {}
+
+class C941 {}
+
+class C942 {}
+
+class C943 {}
+
+class C944 {}
+
+class C945 {}
+
+class C946 {}
+
+class C947 {}
+
+class C948 {}
+
+class C949 {}
+
+class C950 {}
+
+class C951 {}
+
+class C952 {}
+
+class C953 {}
+
+class C954 {}
+
+class C955 {}
+
+class C956 {}
+
+class C957 {}
+
+class C958 {}
+
+class C959 {}
+
+class C960 {}
+
+class C961 {}
+
+class C962 {}
+
+class C963 {}
+
+class C964 {}
+
+class C965 {}
+
+class C966 {}
+
+class C967 {}
+
+class C968 {}
+
+class C969 {}
+
+class C970 {}
+
+class C971 {}
+
+class C972 {}
+
+class C973 {}
+
+class C974 {}
+
+class C975 {}
+
+class C976 {}
+
+class C977 {}
+
+class C978 {}
+
+class C979 {}
+
+class C980 {}
+
+class C981 {}
+
+class C982 {}
+
+class C983 {}
+
+class C984 {}
+
+class C985 {}
+
+class C986 {}
+
+class C987 {}
+
+class C988 {}
+
+class C989 {}
+
+class C990 {}
+
+class C991 {}
+
+class C992 {}
+
+class C993 {}
+
+class C994 {}
+
+class C995 {}
+
+class C996 {}
+
+class C997 {}
+
+class C998 {}
+
+class C999 {}
+
+void instantiateMany() {
+  D.instantiate<C0>();
+  D.instantiate<C1>();
+  D.instantiate<C2>();
+  D.instantiate<C3>();
+  D.instantiate<C4>();
+  D.instantiate<C5>();
+  D.instantiate<C6>();
+  D.instantiate<C7>();
+  D.instantiate<C8>();
+  D.instantiate<C9>();
+  D.instantiate<C10>();
+  D.instantiate<C11>();
+  D.instantiate<C12>();
+  D.instantiate<C13>();
+  D.instantiate<C14>();
+  D.instantiate<C15>();
+  D.instantiate<C16>();
+  D.instantiate<C17>();
+  D.instantiate<C18>();
+  D.instantiate<C19>();
+  D.instantiate<C20>();
+  D.instantiate<C21>();
+  D.instantiate<C22>();
+  D.instantiate<C23>();
+  D.instantiate<C24>();
+  D.instantiate<C25>();
+  D.instantiate<C26>();
+  D.instantiate<C27>();
+  D.instantiate<C28>();
+  D.instantiate<C29>();
+  D.instantiate<C30>();
+  D.instantiate<C31>();
+  D.instantiate<C32>();
+  D.instantiate<C33>();
+  D.instantiate<C34>();
+  D.instantiate<C35>();
+  D.instantiate<C36>();
+  D.instantiate<C37>();
+  D.instantiate<C38>();
+  D.instantiate<C39>();
+  D.instantiate<C40>();
+  D.instantiate<C41>();
+  D.instantiate<C42>();
+  D.instantiate<C43>();
+  D.instantiate<C44>();
+  D.instantiate<C45>();
+  D.instantiate<C46>();
+  D.instantiate<C47>();
+  D.instantiate<C48>();
+  D.instantiate<C49>();
+  D.instantiate<C50>();
+  D.instantiate<C51>();
+  D.instantiate<C52>();
+  D.instantiate<C53>();
+  D.instantiate<C54>();
+  D.instantiate<C55>();
+  D.instantiate<C56>();
+  D.instantiate<C57>();
+  D.instantiate<C58>();
+  D.instantiate<C59>();
+  D.instantiate<C60>();
+  D.instantiate<C61>();
+  D.instantiate<C62>();
+  D.instantiate<C63>();
+  D.instantiate<C64>();
+  D.instantiate<C65>();
+  D.instantiate<C66>();
+  D.instantiate<C67>();
+  D.instantiate<C68>();
+  D.instantiate<C69>();
+  D.instantiate<C70>();
+  D.instantiate<C71>();
+  D.instantiate<C72>();
+  D.instantiate<C73>();
+  D.instantiate<C74>();
+  D.instantiate<C75>();
+  D.instantiate<C76>();
+  D.instantiate<C77>();
+  D.instantiate<C78>();
+  D.instantiate<C79>();
+  D.instantiate<C80>();
+  D.instantiate<C81>();
+  D.instantiate<C82>();
+  D.instantiate<C83>();
+  D.instantiate<C84>();
+  D.instantiate<C85>();
+  D.instantiate<C86>();
+  D.instantiate<C87>();
+  D.instantiate<C88>();
+  D.instantiate<C89>();
+  D.instantiate<C90>();
+  D.instantiate<C91>();
+  D.instantiate<C92>();
+  D.instantiate<C93>();
+  D.instantiate<C94>();
+  D.instantiate<C95>();
+  D.instantiate<C96>();
+  D.instantiate<C97>();
+  D.instantiate<C98>();
+  D.instantiate<C99>();
+  D.instantiate<C100>();
+  D.instantiate<C101>();
+  D.instantiate<C102>();
+  D.instantiate<C103>();
+  D.instantiate<C104>();
+  D.instantiate<C105>();
+  D.instantiate<C106>();
+  D.instantiate<C107>();
+  D.instantiate<C108>();
+  D.instantiate<C109>();
+  D.instantiate<C110>();
+  D.instantiate<C111>();
+  D.instantiate<C112>();
+  D.instantiate<C113>();
+  D.instantiate<C114>();
+  D.instantiate<C115>();
+  D.instantiate<C116>();
+  D.instantiate<C117>();
+  D.instantiate<C118>();
+  D.instantiate<C119>();
+  D.instantiate<C120>();
+  D.instantiate<C121>();
+  D.instantiate<C122>();
+  D.instantiate<C123>();
+  D.instantiate<C124>();
+  D.instantiate<C125>();
+  D.instantiate<C126>();
+  D.instantiate<C127>();
+  D.instantiate<C128>();
+  D.instantiate<C129>();
+  D.instantiate<C130>();
+  D.instantiate<C131>();
+  D.instantiate<C132>();
+  D.instantiate<C133>();
+  D.instantiate<C134>();
+  D.instantiate<C135>();
+  D.instantiate<C136>();
+  D.instantiate<C137>();
+  D.instantiate<C138>();
+  D.instantiate<C139>();
+  D.instantiate<C140>();
+  D.instantiate<C141>();
+  D.instantiate<C142>();
+  D.instantiate<C143>();
+  D.instantiate<C144>();
+  D.instantiate<C145>();
+  D.instantiate<C146>();
+  D.instantiate<C147>();
+  D.instantiate<C148>();
+  D.instantiate<C149>();
+  D.instantiate<C150>();
+  D.instantiate<C151>();
+  D.instantiate<C152>();
+  D.instantiate<C153>();
+  D.instantiate<C154>();
+  D.instantiate<C155>();
+  D.instantiate<C156>();
+  D.instantiate<C157>();
+  D.instantiate<C158>();
+  D.instantiate<C159>();
+  D.instantiate<C160>();
+  D.instantiate<C161>();
+  D.instantiate<C162>();
+  D.instantiate<C163>();
+  D.instantiate<C164>();
+  D.instantiate<C165>();
+  D.instantiate<C166>();
+  D.instantiate<C167>();
+  D.instantiate<C168>();
+  D.instantiate<C169>();
+  D.instantiate<C170>();
+  D.instantiate<C171>();
+  D.instantiate<C172>();
+  D.instantiate<C173>();
+  D.instantiate<C174>();
+  D.instantiate<C175>();
+  D.instantiate<C176>();
+  D.instantiate<C177>();
+  D.instantiate<C178>();
+  D.instantiate<C179>();
+  D.instantiate<C180>();
+  D.instantiate<C181>();
+  D.instantiate<C182>();
+  D.instantiate<C183>();
+  D.instantiate<C184>();
+  D.instantiate<C185>();
+  D.instantiate<C186>();
+  D.instantiate<C187>();
+  D.instantiate<C188>();
+  D.instantiate<C189>();
+  D.instantiate<C190>();
+  D.instantiate<C191>();
+  D.instantiate<C192>();
+  D.instantiate<C193>();
+  D.instantiate<C194>();
+  D.instantiate<C195>();
+  D.instantiate<C196>();
+  D.instantiate<C197>();
+  D.instantiate<C198>();
+  D.instantiate<C199>();
+  D.instantiate<C200>();
+  D.instantiate<C201>();
+  D.instantiate<C202>();
+  D.instantiate<C203>();
+  D.instantiate<C204>();
+  D.instantiate<C205>();
+  D.instantiate<C206>();
+  D.instantiate<C207>();
+  D.instantiate<C208>();
+  D.instantiate<C209>();
+  D.instantiate<C210>();
+  D.instantiate<C211>();
+  D.instantiate<C212>();
+  D.instantiate<C213>();
+  D.instantiate<C214>();
+  D.instantiate<C215>();
+  D.instantiate<C216>();
+  D.instantiate<C217>();
+  D.instantiate<C218>();
+  D.instantiate<C219>();
+  D.instantiate<C220>();
+  D.instantiate<C221>();
+  D.instantiate<C222>();
+  D.instantiate<C223>();
+  D.instantiate<C224>();
+  D.instantiate<C225>();
+  D.instantiate<C226>();
+  D.instantiate<C227>();
+  D.instantiate<C228>();
+  D.instantiate<C229>();
+  D.instantiate<C230>();
+  D.instantiate<C231>();
+  D.instantiate<C232>();
+  D.instantiate<C233>();
+  D.instantiate<C234>();
+  D.instantiate<C235>();
+  D.instantiate<C236>();
+  D.instantiate<C237>();
+  D.instantiate<C238>();
+  D.instantiate<C239>();
+  D.instantiate<C240>();
+  D.instantiate<C241>();
+  D.instantiate<C242>();
+  D.instantiate<C243>();
+  D.instantiate<C244>();
+  D.instantiate<C245>();
+  D.instantiate<C246>();
+  D.instantiate<C247>();
+  D.instantiate<C248>();
+  D.instantiate<C249>();
+  D.instantiate<C250>();
+  D.instantiate<C251>();
+  D.instantiate<C252>();
+  D.instantiate<C253>();
+  D.instantiate<C254>();
+  D.instantiate<C255>();
+  D.instantiate<C256>();
+  D.instantiate<C257>();
+  D.instantiate<C258>();
+  D.instantiate<C259>();
+  D.instantiate<C260>();
+  D.instantiate<C261>();
+  D.instantiate<C262>();
+  D.instantiate<C263>();
+  D.instantiate<C264>();
+  D.instantiate<C265>();
+  D.instantiate<C266>();
+  D.instantiate<C267>();
+  D.instantiate<C268>();
+  D.instantiate<C269>();
+  D.instantiate<C270>();
+  D.instantiate<C271>();
+  D.instantiate<C272>();
+  D.instantiate<C273>();
+  D.instantiate<C274>();
+  D.instantiate<C275>();
+  D.instantiate<C276>();
+  D.instantiate<C277>();
+  D.instantiate<C278>();
+  D.instantiate<C279>();
+  D.instantiate<C280>();
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+  D.instantiate<C950>();
+  D.instantiate<C951>();
+  D.instantiate<C952>();
+  D.instantiate<C953>();
+  D.instantiate<C954>();
+  D.instantiate<C955>();
+  D.instantiate<C956>();
+  D.instantiate<C957>();
+  D.instantiate<C958>();
+  D.instantiate<C959>();
+  D.instantiate<C960>();
+  D.instantiate<C961>();
+  D.instantiate<C962>();
+  D.instantiate<C963>();
+  D.instantiate<C964>();
+  D.instantiate<C965>();
+  D.instantiate<C966>();
+  D.instantiate<C967>();
+  D.instantiate<C968>();
+  D.instantiate<C969>();
+  D.instantiate<C970>();
+  D.instantiate<C971>();
+  D.instantiate<C972>();
+  D.instantiate<C973>();
+  D.instantiate<C974>();
+  D.instantiate<C975>();
+  D.instantiate<C976>();
+  D.instantiate<C977>();
+  D.instantiate<C978>();
+  D.instantiate<C979>();
+  D.instantiate<C980>();
+  D.instantiate<C981>();
+  D.instantiate<C982>();
+  D.instantiate<C983>();
+  D.instantiate<C984>();
+  D.instantiate<C985>();
+  D.instantiate<C986>();
+  D.instantiate<C987>();
+  D.instantiate<C988>();
+  D.instantiate<C989>();
+  D.instantiate<C990>();
+  D.instantiate<C991>();
+  D.instantiate<C992>();
+  D.instantiate<C993>();
+  D.instantiate<C994>();
+  D.instantiate<C995>();
+  D.instantiate<C996>();
+  D.instantiate<C997>();
+  D.instantiate<C998>();
+  D.instantiate<C999>();
+}
diff --git a/benchmarks/InstantiateTypeArgs/dart2/InstantiateTypeArgs.dart b/benchmarks/InstantiateTypeArgs/dart2/InstantiateTypeArgs.dart
new file mode 100644
index 0000000..3815659
--- /dev/null
+++ b/benchmarks/InstantiateTypeArgs/dart2/InstantiateTypeArgs.dart
@@ -0,0 +1,6107 @@
+// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+//
+// This benchmark suite measures the overhead of instantiating type arguments,
+// with a particular aim of measuring the overhead of the caching mechanism.
+
+// @dart=2.9"
+
+import 'package:benchmark_harness/benchmark_harness.dart';
+
+void main() {
+  // Instantiates a series of types, each type instantiated with a single type.
+  const InstantiateOnce().report();
+  // Repeats the instantiations in InstantiateOnce, this time depending
+  // on the now-filled caches.
+  const RepeatInstantiateOnce().report();
+  // Instantiates a single type many times, each type being a new instantiation.
+  const InstantiateMany().report();
+  // Repeats the instantiations in InstantiateMany, this time depending on the
+  // now-filled cache.
+  const RepeatInstantiateMany().report();
+}
+
+class InstantiateOnce extends BenchmarkBase {
+  const InstantiateOnce() : super('InstantiateTypeArgs.InstantiateOnce');
+
+  // Only call run once, else the remaining runs will have the cached types.
+  @override
+  void exercise() => run();
+
+  @override
+  void run() {
+    instantiateOnce<B>();
+  }
+}
+
+class RepeatInstantiateOnce extends BenchmarkBase {
+  const RepeatInstantiateOnce()
+      : super('InstantiateTypeArgs.RepeatInstantiateOnce');
+
+  @override
+  void setup() {
+    // Run once to make sure the instantiations are cached, in case this
+    // benchmark is run on its own.
+    instantiateOnce<B>();
+  }
+
+  // Only call run once, so this is directly comparable to InstantiateOnce.
+  @override
+  void exercise() => run();
+
+  @override
+  void run() {
+    instantiateOnce<B>();
+  }
+}
+
+class InstantiateMany extends BenchmarkBase {
+  const InstantiateMany() : super('InstantiateTypeArgs.InstantiateMany');
+
+  // Only call run once, else the remaining runs will have the cached types.
+  @override
+  void exercise() => run();
+
+  @override
+  void run() {
+    instantiateMany();
+  }
+}
+
+class RepeatInstantiateMany extends BenchmarkBase {
+  const RepeatInstantiateMany()
+      : super('InstantiateTypeArgs.RepeatInstantiateMany');
+
+  @override
+  void setup() {
+    // Run once to make sure the instantiations are cached, in case this
+    // benchmark is run on its own.
+    instantiateMany();
+  }
+
+  // Only call run once, so this is directly comparable to InstantiateMany.
+  @override
+  void exercise() => run();
+
+  @override
+  void run() {
+    instantiateMany();
+  }
+}
+
+@pragma('vm:never-inline')
+void blackhole<T>() => null;
+
+class B {}
+
+class D<T> {
+  @pragma('vm:never-inline')
+  static void instantiate<T>() => blackhole<D<T>>();
+}
+
+class A0<T> {}
+
+class A1<T> {}
+
+class A2<T> {}
+
+class A3<T> {}
+
+class A4<T> {}
+
+class A5<T> {}
+
+class A6<T> {}
+
+class A7<T> {}
+
+class A8<T> {}
+
+class A9<T> {}
+
+class A10<T> {}
+
+class A11<T> {}
+
+class A12<T> {}
+
+class A13<T> {}
+
+class A14<T> {}
+
+class A15<T> {}
+
+class A16<T> {}
+
+class A17<T> {}
+
+class A18<T> {}
+
+class A19<T> {}
+
+class A20<T> {}
+
+class A21<T> {}
+
+class A22<T> {}
+
+class A23<T> {}
+
+class A24<T> {}
+
+class A25<T> {}
+
+class A26<T> {}
+
+class A27<T> {}
+
+class A28<T> {}
+
+class A29<T> {}
+
+class A30<T> {}
+
+class A31<T> {}
+
+class A32<T> {}
+
+class A33<T> {}
+
+class A34<T> {}
+
+class A35<T> {}
+
+class A36<T> {}
+
+class A37<T> {}
+
+class A38<T> {}
+
+class A39<T> {}
+
+class A40<T> {}
+
+class A41<T> {}
+
+class A42<T> {}
+
+class A43<T> {}
+
+class A44<T> {}
+
+class A45<T> {}
+
+class A46<T> {}
+
+class A47<T> {}
+
+class A48<T> {}
+
+class A49<T> {}
+
+class A50<T> {}
+
+class A51<T> {}
+
+class A52<T> {}
+
+class A53<T> {}
+
+class A54<T> {}
+
+class A55<T> {}
+
+class A56<T> {}
+
+class A57<T> {}
+
+class A58<T> {}
+
+class A59<T> {}
+
+class A60<T> {}
+
+class A61<T> {}
+
+class A62<T> {}
+
+class A63<T> {}
+
+class A64<T> {}
+
+class A65<T> {}
+
+class A66<T> {}
+
+class A67<T> {}
+
+class A68<T> {}
+
+class A69<T> {}
+
+class A70<T> {}
+
+class A71<T> {}
+
+class A72<T> {}
+
+class A73<T> {}
+
+class A74<T> {}
+
+class A75<T> {}
+
+class A76<T> {}
+
+class A77<T> {}
+
+class A78<T> {}
+
+class A79<T> {}
+
+class A80<T> {}
+
+class A81<T> {}
+
+class A82<T> {}
+
+class A83<T> {}
+
+class A84<T> {}
+
+class A85<T> {}
+
+class A86<T> {}
+
+class A87<T> {}
+
+class A88<T> {}
+
+class A89<T> {}
+
+class A90<T> {}
+
+class A91<T> {}
+
+class A92<T> {}
+
+class A93<T> {}
+
+class A94<T> {}
+
+class A95<T> {}
+
+class A96<T> {}
+
+class A97<T> {}
+
+class A98<T> {}
+
+class A99<T> {}
+
+class A100<T> {}
+
+class A101<T> {}
+
+class A102<T> {}
+
+class A103<T> {}
+
+class A104<T> {}
+
+class A105<T> {}
+
+class A106<T> {}
+
+class A107<T> {}
+
+class A108<T> {}
+
+class A109<T> {}
+
+class A110<T> {}
+
+class A111<T> {}
+
+class A112<T> {}
+
+class A113<T> {}
+
+class A114<T> {}
+
+class A115<T> {}
+
+class A116<T> {}
+
+class A117<T> {}
+
+class A118<T> {}
+
+class A119<T> {}
+
+class A120<T> {}
+
+class A121<T> {}
+
+class A122<T> {}
+
+class A123<T> {}
+
+class A124<T> {}
+
+class A125<T> {}
+
+class A126<T> {}
+
+class A127<T> {}
+
+class A128<T> {}
+
+class A129<T> {}
+
+class A130<T> {}
+
+class A131<T> {}
+
+class A132<T> {}
+
+class A133<T> {}
+
+class A134<T> {}
+
+class A135<T> {}
+
+class A136<T> {}
+
+class A137<T> {}
+
+class A138<T> {}
+
+class A139<T> {}
+
+class A140<T> {}
+
+class A141<T> {}
+
+class A142<T> {}
+
+class A143<T> {}
+
+class A144<T> {}
+
+class A145<T> {}
+
+class A146<T> {}
+
+class A147<T> {}
+
+class A148<T> {}
+
+class A149<T> {}
+
+class A150<T> {}
+
+class A151<T> {}
+
+class A152<T> {}
+
+class A153<T> {}
+
+class A154<T> {}
+
+class A155<T> {}
+
+class A156<T> {}
+
+class A157<T> {}
+
+class A158<T> {}
+
+class A159<T> {}
+
+class A160<T> {}
+
+class A161<T> {}
+
+class A162<T> {}
+
+class A163<T> {}
+
+class A164<T> {}
+
+class A165<T> {}
+
+class A166<T> {}
+
+class A167<T> {}
+
+class A168<T> {}
+
+class A169<T> {}
+
+class A170<T> {}
+
+class A171<T> {}
+
+class A172<T> {}
+
+class A173<T> {}
+
+class A174<T> {}
+
+class A175<T> {}
+
+class A176<T> {}
+
+class A177<T> {}
+
+class A178<T> {}
+
+class A179<T> {}
+
+class A180<T> {}
+
+class A181<T> {}
+
+class A182<T> {}
+
+class A183<T> {}
+
+class A184<T> {}
+
+class A185<T> {}
+
+class A186<T> {}
+
+class A187<T> {}
+
+class A188<T> {}
+
+class A189<T> {}
+
+class A190<T> {}
+
+class A191<T> {}
+
+class A192<T> {}
+
+class A193<T> {}
+
+class A194<T> {}
+
+class A195<T> {}
+
+class A196<T> {}
+
+class A197<T> {}
+
+class A198<T> {}
+
+class A199<T> {}
+
+class A200<T> {}
+
+class A201<T> {}
+
+class A202<T> {}
+
+class A203<T> {}
+
+class A204<T> {}
+
+class A205<T> {}
+
+class A206<T> {}
+
+class A207<T> {}
+
+class A208<T> {}
+
+class A209<T> {}
+
+class A210<T> {}
+
+class A211<T> {}
+
+class A212<T> {}
+
+class A213<T> {}
+
+class A214<T> {}
+
+class A215<T> {}
+
+class A216<T> {}
+
+class A217<T> {}
+
+class A218<T> {}
+
+class A219<T> {}
+
+class A220<T> {}
+
+class A221<T> {}
+
+class A222<T> {}
+
+class A223<T> {}
+
+class A224<T> {}
+
+class A225<T> {}
+
+class A226<T> {}
+
+class A227<T> {}
+
+class A228<T> {}
+
+class A229<T> {}
+
+class A230<T> {}
+
+class A231<T> {}
+
+class A232<T> {}
+
+class A233<T> {}
+
+class A234<T> {}
+
+class A235<T> {}
+
+class A236<T> {}
+
+class A237<T> {}
+
+class A238<T> {}
+
+class A239<T> {}
+
+class A240<T> {}
+
+class A241<T> {}
+
+class A242<T> {}
+
+class A243<T> {}
+
+class A244<T> {}
+
+class A245<T> {}
+
+class A246<T> {}
+
+class A247<T> {}
+
+class A248<T> {}
+
+class A249<T> {}
+
+class A250<T> {}
+
+class A251<T> {}
+
+class A252<T> {}
+
+class A253<T> {}
+
+class A254<T> {}
+
+class A255<T> {}
+
+class A256<T> {}
+
+class A257<T> {}
+
+class A258<T> {}
+
+class A259<T> {}
+
+class A260<T> {}
+
+class A261<T> {}
+
+class A262<T> {}
+
+class A263<T> {}
+
+class A264<T> {}
+
+class A265<T> {}
+
+class A266<T> {}
+
+class A267<T> {}
+
+class A268<T> {}
+
+class A269<T> {}
+
+class A270<T> {}
+
+class A271<T> {}
+
+class A272<T> {}
+
+class A273<T> {}
+
+class A274<T> {}
+
+class A275<T> {}
+
+class A276<T> {}
+
+class A277<T> {}
+
+class A278<T> {}
+
+class A279<T> {}
+
+class A280<T> {}
+
+class A281<T> {}
+
+class A282<T> {}
+
+class A283<T> {}
+
+class A284<T> {}
+
+class A285<T> {}
+
+class A286<T> {}
+
+class A287<T> {}
+
+class A288<T> {}
+
+class A289<T> {}
+
+class A290<T> {}
+
+class A291<T> {}
+
+class A292<T> {}
+
+class A293<T> {}
+
+class A294<T> {}
+
+class A295<T> {}
+
+class A296<T> {}
+
+class A297<T> {}
+
+class A298<T> {}
+
+class A299<T> {}
+
+class A300<T> {}
+
+class A301<T> {}
+
+class A302<T> {}
+
+class A303<T> {}
+
+class A304<T> {}
+
+class A305<T> {}
+
+class A306<T> {}
+
+class A307<T> {}
+
+class A308<T> {}
+
+class A309<T> {}
+
+class A310<T> {}
+
+class A311<T> {}
+
+class A312<T> {}
+
+class A313<T> {}
+
+class A314<T> {}
+
+class A315<T> {}
+
+class A316<T> {}
+
+class A317<T> {}
+
+class A318<T> {}
+
+class A319<T> {}
+
+class A320<T> {}
+
+class A321<T> {}
+
+class A322<T> {}
+
+class A323<T> {}
+
+class A324<T> {}
+
+class A325<T> {}
+
+class A326<T> {}
+
+class A327<T> {}
+
+class A328<T> {}
+
+class A329<T> {}
+
+class A330<T> {}
+
+class A331<T> {}
+
+class A332<T> {}
+
+class A333<T> {}
+
+class A334<T> {}
+
+class A335<T> {}
+
+class A336<T> {}
+
+class A337<T> {}
+
+class A338<T> {}
+
+class A339<T> {}
+
+class A340<T> {}
+
+class A341<T> {}
+
+class A342<T> {}
+
+class A343<T> {}
+
+class A344<T> {}
+
+class A345<T> {}
+
+class A346<T> {}
+
+class A347<T> {}
+
+class A348<T> {}
+
+class A349<T> {}
+
+class A350<T> {}
+
+class A351<T> {}
+
+class A352<T> {}
+
+class A353<T> {}
+
+class A354<T> {}
+
+class A355<T> {}
+
+class A356<T> {}
+
+class A357<T> {}
+
+class A358<T> {}
+
+class A359<T> {}
+
+class A360<T> {}
+
+class A361<T> {}
+
+class A362<T> {}
+
+class A363<T> {}
+
+class A364<T> {}
+
+class A365<T> {}
+
+class A366<T> {}
+
+class A367<T> {}
+
+class A368<T> {}
+
+class A369<T> {}
+
+class A370<T> {}
+
+class A371<T> {}
+
+class A372<T> {}
+
+class A373<T> {}
+
+class A374<T> {}
+
+class A375<T> {}
+
+class A376<T> {}
+
+class A377<T> {}
+
+class A378<T> {}
+
+class A379<T> {}
+
+class A380<T> {}
+
+class A381<T> {}
+
+class A382<T> {}
+
+class A383<T> {}
+
+class A384<T> {}
+
+class A385<T> {}
+
+class A386<T> {}
+
+class A387<T> {}
+
+class A388<T> {}
+
+class A389<T> {}
+
+class A390<T> {}
+
+class A391<T> {}
+
+class A392<T> {}
+
+class A393<T> {}
+
+class A394<T> {}
+
+class A395<T> {}
+
+class A396<T> {}
+
+class A397<T> {}
+
+class A398<T> {}
+
+class A399<T> {}
+
+class A400<T> {}
+
+class A401<T> {}
+
+class A402<T> {}
+
+class A403<T> {}
+
+class A404<T> {}
+
+class A405<T> {}
+
+class A406<T> {}
+
+class A407<T> {}
+
+class A408<T> {}
+
+class A409<T> {}
+
+class A410<T> {}
+
+class A411<T> {}
+
+class A412<T> {}
+
+class A413<T> {}
+
+class A414<T> {}
+
+class A415<T> {}
+
+class A416<T> {}
+
+class A417<T> {}
+
+class A418<T> {}
+
+class A419<T> {}
+
+class A420<T> {}
+
+class A421<T> {}
+
+class A422<T> {}
+
+class A423<T> {}
+
+class A424<T> {}
+
+class A425<T> {}
+
+class A426<T> {}
+
+class A427<T> {}
+
+class A428<T> {}
+
+class A429<T> {}
+
+class A430<T> {}
+
+class A431<T> {}
+
+class A432<T> {}
+
+class A433<T> {}
+
+class A434<T> {}
+
+class A435<T> {}
+
+class A436<T> {}
+
+class A437<T> {}
+
+class A438<T> {}
+
+class A439<T> {}
+
+class A440<T> {}
+
+class A441<T> {}
+
+class A442<T> {}
+
+class A443<T> {}
+
+class A444<T> {}
+
+class A445<T> {}
+
+class A446<T> {}
+
+class A447<T> {}
+
+class A448<T> {}
+
+class A449<T> {}
+
+class A450<T> {}
+
+class A451<T> {}
+
+class A452<T> {}
+
+class A453<T> {}
+
+class A454<T> {}
+
+class A455<T> {}
+
+class A456<T> {}
+
+class A457<T> {}
+
+class A458<T> {}
+
+class A459<T> {}
+
+class A460<T> {}
+
+class A461<T> {}
+
+class A462<T> {}
+
+class A463<T> {}
+
+class A464<T> {}
+
+class A465<T> {}
+
+class A466<T> {}
+
+class A467<T> {}
+
+class A468<T> {}
+
+class A469<T> {}
+
+class A470<T> {}
+
+class A471<T> {}
+
+class A472<T> {}
+
+class A473<T> {}
+
+class A474<T> {}
+
+class A475<T> {}
+
+class A476<T> {}
+
+class A477<T> {}
+
+class A478<T> {}
+
+class A479<T> {}
+
+class A480<T> {}
+
+class A481<T> {}
+
+class A482<T> {}
+
+class A483<T> {}
+
+class A484<T> {}
+
+class A485<T> {}
+
+class A486<T> {}
+
+class A487<T> {}
+
+class A488<T> {}
+
+class A489<T> {}
+
+class A490<T> {}
+
+class A491<T> {}
+
+class A492<T> {}
+
+class A493<T> {}
+
+class A494<T> {}
+
+class A495<T> {}
+
+class A496<T> {}
+
+class A497<T> {}
+
+class A498<T> {}
+
+class A499<T> {}
+
+class A500<T> {}
+
+class A501<T> {}
+
+class A502<T> {}
+
+class A503<T> {}
+
+class A504<T> {}
+
+class A505<T> {}
+
+class A506<T> {}
+
+class A507<T> {}
+
+class A508<T> {}
+
+class A509<T> {}
+
+class A510<T> {}
+
+class A511<T> {}
+
+class A512<T> {}
+
+class A513<T> {}
+
+class A514<T> {}
+
+class A515<T> {}
+
+class A516<T> {}
+
+class A517<T> {}
+
+class A518<T> {}
+
+class A519<T> {}
+
+class A520<T> {}
+
+class A521<T> {}
+
+class A522<T> {}
+
+class A523<T> {}
+
+class A524<T> {}
+
+class A525<T> {}
+
+class A526<T> {}
+
+class A527<T> {}
+
+class A528<T> {}
+
+class A529<T> {}
+
+class A530<T> {}
+
+class A531<T> {}
+
+class A532<T> {}
+
+class A533<T> {}
+
+class A534<T> {}
+
+class A535<T> {}
+
+class A536<T> {}
+
+class A537<T> {}
+
+class A538<T> {}
+
+class A539<T> {}
+
+class A540<T> {}
+
+class A541<T> {}
+
+class A542<T> {}
+
+class A543<T> {}
+
+class A544<T> {}
+
+class A545<T> {}
+
+class A546<T> {}
+
+class A547<T> {}
+
+class A548<T> {}
+
+class A549<T> {}
+
+class A550<T> {}
+
+class A551<T> {}
+
+class A552<T> {}
+
+class A553<T> {}
+
+class A554<T> {}
+
+class A555<T> {}
+
+class A556<T> {}
+
+class A557<T> {}
+
+class A558<T> {}
+
+class A559<T> {}
+
+class A560<T> {}
+
+class A561<T> {}
+
+class A562<T> {}
+
+class A563<T> {}
+
+class A564<T> {}
+
+class A565<T> {}
+
+class A566<T> {}
+
+class A567<T> {}
+
+class A568<T> {}
+
+class A569<T> {}
+
+class A570<T> {}
+
+class A571<T> {}
+
+class A572<T> {}
+
+class A573<T> {}
+
+class A574<T> {}
+
+class A575<T> {}
+
+class A576<T> {}
+
+class A577<T> {}
+
+class A578<T> {}
+
+class A579<T> {}
+
+class A580<T> {}
+
+class A581<T> {}
+
+class A582<T> {}
+
+class A583<T> {}
+
+class A584<T> {}
+
+class A585<T> {}
+
+class A586<T> {}
+
+class A587<T> {}
+
+class A588<T> {}
+
+class A589<T> {}
+
+class A590<T> {}
+
+class A591<T> {}
+
+class A592<T> {}
+
+class A593<T> {}
+
+class A594<T> {}
+
+class A595<T> {}
+
+class A596<T> {}
+
+class A597<T> {}
+
+class A598<T> {}
+
+class A599<T> {}
+
+class A600<T> {}
+
+class A601<T> {}
+
+class A602<T> {}
+
+class A603<T> {}
+
+class A604<T> {}
+
+class A605<T> {}
+
+class A606<T> {}
+
+class A607<T> {}
+
+class A608<T> {}
+
+class A609<T> {}
+
+class A610<T> {}
+
+class A611<T> {}
+
+class A612<T> {}
+
+class A613<T> {}
+
+class A614<T> {}
+
+class A615<T> {}
+
+class A616<T> {}
+
+class A617<T> {}
+
+class A618<T> {}
+
+class A619<T> {}
+
+class A620<T> {}
+
+class A621<T> {}
+
+class A622<T> {}
+
+class A623<T> {}
+
+class A624<T> {}
+
+class A625<T> {}
+
+class A626<T> {}
+
+class A627<T> {}
+
+class A628<T> {}
+
+class A629<T> {}
+
+class A630<T> {}
+
+class A631<T> {}
+
+class A632<T> {}
+
+class A633<T> {}
+
+class A634<T> {}
+
+class A635<T> {}
+
+class A636<T> {}
+
+class A637<T> {}
+
+class A638<T> {}
+
+class A639<T> {}
+
+class A640<T> {}
+
+class A641<T> {}
+
+class A642<T> {}
+
+class A643<T> {}
+
+class A644<T> {}
+
+class A645<T> {}
+
+class A646<T> {}
+
+class A647<T> {}
+
+class A648<T> {}
+
+class A649<T> {}
+
+class A650<T> {}
+
+class A651<T> {}
+
+class A652<T> {}
+
+class A653<T> {}
+
+class A654<T> {}
+
+class A655<T> {}
+
+class A656<T> {}
+
+class A657<T> {}
+
+class A658<T> {}
+
+class A659<T> {}
+
+class A660<T> {}
+
+class A661<T> {}
+
+class A662<T> {}
+
+class A663<T> {}
+
+class A664<T> {}
+
+class A665<T> {}
+
+class A666<T> {}
+
+class A667<T> {}
+
+class A668<T> {}
+
+class A669<T> {}
+
+class A670<T> {}
+
+class A671<T> {}
+
+class A672<T> {}
+
+class A673<T> {}
+
+class A674<T> {}
+
+class A675<T> {}
+
+class A676<T> {}
+
+class A677<T> {}
+
+class A678<T> {}
+
+class A679<T> {}
+
+class A680<T> {}
+
+class A681<T> {}
+
+class A682<T> {}
+
+class A683<T> {}
+
+class A684<T> {}
+
+class A685<T> {}
+
+class A686<T> {}
+
+class A687<T> {}
+
+class A688<T> {}
+
+class A689<T> {}
+
+class A690<T> {}
+
+class A691<T> {}
+
+class A692<T> {}
+
+class A693<T> {}
+
+class A694<T> {}
+
+class A695<T> {}
+
+class A696<T> {}
+
+class A697<T> {}
+
+class A698<T> {}
+
+class A699<T> {}
+
+class A700<T> {}
+
+class A701<T> {}
+
+class A702<T> {}
+
+class A703<T> {}
+
+class A704<T> {}
+
+class A705<T> {}
+
+class A706<T> {}
+
+class A707<T> {}
+
+class A708<T> {}
+
+class A709<T> {}
+
+class A710<T> {}
+
+class A711<T> {}
+
+class A712<T> {}
+
+class A713<T> {}
+
+class A714<T> {}
+
+class A715<T> {}
+
+class A716<T> {}
+
+class A717<T> {}
+
+class A718<T> {}
+
+class A719<T> {}
+
+class A720<T> {}
+
+class A721<T> {}
+
+class A722<T> {}
+
+class A723<T> {}
+
+class A724<T> {}
+
+class A725<T> {}
+
+class A726<T> {}
+
+class A727<T> {}
+
+class A728<T> {}
+
+class A729<T> {}
+
+class A730<T> {}
+
+class A731<T> {}
+
+class A732<T> {}
+
+class A733<T> {}
+
+class A734<T> {}
+
+class A735<T> {}
+
+class A736<T> {}
+
+class A737<T> {}
+
+class A738<T> {}
+
+class A739<T> {}
+
+class A740<T> {}
+
+class A741<T> {}
+
+class A742<T> {}
+
+class A743<T> {}
+
+class A744<T> {}
+
+class A745<T> {}
+
+class A746<T> {}
+
+class A747<T> {}
+
+class A748<T> {}
+
+class A749<T> {}
+
+class A750<T> {}
+
+class A751<T> {}
+
+class A752<T> {}
+
+class A753<T> {}
+
+class A754<T> {}
+
+class A755<T> {}
+
+class A756<T> {}
+
+class A757<T> {}
+
+class A758<T> {}
+
+class A759<T> {}
+
+class A760<T> {}
+
+class A761<T> {}
+
+class A762<T> {}
+
+class A763<T> {}
+
+class A764<T> {}
+
+class A765<T> {}
+
+class A766<T> {}
+
+class A767<T> {}
+
+class A768<T> {}
+
+class A769<T> {}
+
+class A770<T> {}
+
+class A771<T> {}
+
+class A772<T> {}
+
+class A773<T> {}
+
+class A774<T> {}
+
+class A775<T> {}
+
+class A776<T> {}
+
+class A777<T> {}
+
+class A778<T> {}
+
+class A779<T> {}
+
+class A780<T> {}
+
+class A781<T> {}
+
+class A782<T> {}
+
+class A783<T> {}
+
+class A784<T> {}
+
+class A785<T> {}
+
+class A786<T> {}
+
+class A787<T> {}
+
+class A788<T> {}
+
+class A789<T> {}
+
+class A790<T> {}
+
+class A791<T> {}
+
+class A792<T> {}
+
+class A793<T> {}
+
+class A794<T> {}
+
+class A795<T> {}
+
+class A796<T> {}
+
+class A797<T> {}
+
+class A798<T> {}
+
+class A799<T> {}
+
+class A800<T> {}
+
+class A801<T> {}
+
+class A802<T> {}
+
+class A803<T> {}
+
+class A804<T> {}
+
+class A805<T> {}
+
+class A806<T> {}
+
+class A807<T> {}
+
+class A808<T> {}
+
+class A809<T> {}
+
+class A810<T> {}
+
+class A811<T> {}
+
+class A812<T> {}
+
+class A813<T> {}
+
+class A814<T> {}
+
+class A815<T> {}
+
+class A816<T> {}
+
+class A817<T> {}
+
+class A818<T> {}
+
+class A819<T> {}
+
+class A820<T> {}
+
+class A821<T> {}
+
+class A822<T> {}
+
+class A823<T> {}
+
+class A824<T> {}
+
+class A825<T> {}
+
+class A826<T> {}
+
+class A827<T> {}
+
+class A828<T> {}
+
+class A829<T> {}
+
+class A830<T> {}
+
+class A831<T> {}
+
+class A832<T> {}
+
+class A833<T> {}
+
+class A834<T> {}
+
+class A835<T> {}
+
+class A836<T> {}
+
+class A837<T> {}
+
+class A838<T> {}
+
+class A839<T> {}
+
+class A840<T> {}
+
+class A841<T> {}
+
+class A842<T> {}
+
+class A843<T> {}
+
+class A844<T> {}
+
+class A845<T> {}
+
+class A846<T> {}
+
+class A847<T> {}
+
+class A848<T> {}
+
+class A849<T> {}
+
+class A850<T> {}
+
+class A851<T> {}
+
+class A852<T> {}
+
+class A853<T> {}
+
+class A854<T> {}
+
+class A855<T> {}
+
+class A856<T> {}
+
+class A857<T> {}
+
+class A858<T> {}
+
+class A859<T> {}
+
+class A860<T> {}
+
+class A861<T> {}
+
+class A862<T> {}
+
+class A863<T> {}
+
+class A864<T> {}
+
+class A865<T> {}
+
+class A866<T> {}
+
+class A867<T> {}
+
+class A868<T> {}
+
+class A869<T> {}
+
+class A870<T> {}
+
+class A871<T> {}
+
+class A872<T> {}
+
+class A873<T> {}
+
+class A874<T> {}
+
+class A875<T> {}
+
+class A876<T> {}
+
+class A877<T> {}
+
+class A878<T> {}
+
+class A879<T> {}
+
+class A880<T> {}
+
+class A881<T> {}
+
+class A882<T> {}
+
+class A883<T> {}
+
+class A884<T> {}
+
+class A885<T> {}
+
+class A886<T> {}
+
+class A887<T> {}
+
+class A888<T> {}
+
+class A889<T> {}
+
+class A890<T> {}
+
+class A891<T> {}
+
+class A892<T> {}
+
+class A893<T> {}
+
+class A894<T> {}
+
+class A895<T> {}
+
+class A896<T> {}
+
+class A897<T> {}
+
+class A898<T> {}
+
+class A899<T> {}
+
+class A900<T> {}
+
+class A901<T> {}
+
+class A902<T> {}
+
+class A903<T> {}
+
+class A904<T> {}
+
+class A905<T> {}
+
+class A906<T> {}
+
+class A907<T> {}
+
+class A908<T> {}
+
+class A909<T> {}
+
+class A910<T> {}
+
+class A911<T> {}
+
+class A912<T> {}
+
+class A913<T> {}
+
+class A914<T> {}
+
+class A915<T> {}
+
+class A916<T> {}
+
+class A917<T> {}
+
+class A918<T> {}
+
+class A919<T> {}
+
+class A920<T> {}
+
+class A921<T> {}
+
+class A922<T> {}
+
+class A923<T> {}
+
+class A924<T> {}
+
+class A925<T> {}
+
+class A926<T> {}
+
+class A927<T> {}
+
+class A928<T> {}
+
+class A929<T> {}
+
+class A930<T> {}
+
+class A931<T> {}
+
+class A932<T> {}
+
+class A933<T> {}
+
+class A934<T> {}
+
+class A935<T> {}
+
+class A936<T> {}
+
+class A937<T> {}
+
+class A938<T> {}
+
+class A939<T> {}
+
+class A940<T> {}
+
+class A941<T> {}
+
+class A942<T> {}
+
+class A943<T> {}
+
+class A944<T> {}
+
+class A945<T> {}
+
+class A946<T> {}
+
+class A947<T> {}
+
+class A948<T> {}
+
+class A949<T> {}
+
+class A950<T> {}
+
+class A951<T> {}
+
+class A952<T> {}
+
+class A953<T> {}
+
+class A954<T> {}
+
+class A955<T> {}
+
+class A956<T> {}
+
+class A957<T> {}
+
+class A958<T> {}
+
+class A959<T> {}
+
+class A960<T> {}
+
+class A961<T> {}
+
+class A962<T> {}
+
+class A963<T> {}
+
+class A964<T> {}
+
+class A965<T> {}
+
+class A966<T> {}
+
+class A967<T> {}
+
+class A968<T> {}
+
+class A969<T> {}
+
+class A970<T> {}
+
+class A971<T> {}
+
+class A972<T> {}
+
+class A973<T> {}
+
+class A974<T> {}
+
+class A975<T> {}
+
+class A976<T> {}
+
+class A977<T> {}
+
+class A978<T> {}
+
+class A979<T> {}
+
+class A980<T> {}
+
+class A981<T> {}
+
+class A982<T> {}
+
+class A983<T> {}
+
+class A984<T> {}
+
+class A985<T> {}
+
+class A986<T> {}
+
+class A987<T> {}
+
+class A988<T> {}
+
+class A989<T> {}
+
+class A990<T> {}
+
+class A991<T> {}
+
+class A992<T> {}
+
+class A993<T> {}
+
+class A994<T> {}
+
+class A995<T> {}
+
+class A996<T> {}
+
+class A997<T> {}
+
+class A998<T> {}
+
+class A999<T> {}
+
+void instantiateOnce<T>() {
+  blackhole<A0<T>>();
+  blackhole<A1<T>>();
+  blackhole<A2<T>>();
+  blackhole<A3<T>>();
+  blackhole<A4<T>>();
+  blackhole<A5<T>>();
+  blackhole<A6<T>>();
+  blackhole<A7<T>>();
+  blackhole<A8<T>>();
+  blackhole<A9<T>>();
+  blackhole<A10<T>>();
+  blackhole<A11<T>>();
+  blackhole<A12<T>>();
+  blackhole<A13<T>>();
+  blackhole<A14<T>>();
+  blackhole<A15<T>>();
+  blackhole<A16<T>>();
+  blackhole<A17<T>>();
+  blackhole<A18<T>>();
+  blackhole<A19<T>>();
+  blackhole<A20<T>>();
+  blackhole<A21<T>>();
+  blackhole<A22<T>>();
+  blackhole<A23<T>>();
+  blackhole<A24<T>>();
+  blackhole<A25<T>>();
+  blackhole<A26<T>>();
+  blackhole<A27<T>>();
+  blackhole<A28<T>>();
+  blackhole<A29<T>>();
+  blackhole<A30<T>>();
+  blackhole<A31<T>>();
+  blackhole<A32<T>>();
+  blackhole<A33<T>>();
+  blackhole<A34<T>>();
+  blackhole<A35<T>>();
+  blackhole<A36<T>>();
+  blackhole<A37<T>>();
+  blackhole<A38<T>>();
+  blackhole<A39<T>>();
+  blackhole<A40<T>>();
+  blackhole<A41<T>>();
+  blackhole<A42<T>>();
+  blackhole<A43<T>>();
+  blackhole<A44<T>>();
+  blackhole<A45<T>>();
+  blackhole<A46<T>>();
+  blackhole<A47<T>>();
+  blackhole<A48<T>>();
+  blackhole<A49<T>>();
+  blackhole<A50<T>>();
+  blackhole<A51<T>>();
+  blackhole<A52<T>>();
+  blackhole<A53<T>>();
+  blackhole<A54<T>>();
+  blackhole<A55<T>>();
+  blackhole<A56<T>>();
+  blackhole<A57<T>>();
+  blackhole<A58<T>>();
+  blackhole<A59<T>>();
+  blackhole<A60<T>>();
+  blackhole<A61<T>>();
+  blackhole<A62<T>>();
+  blackhole<A63<T>>();
+  blackhole<A64<T>>();
+  blackhole<A65<T>>();
+  blackhole<A66<T>>();
+  blackhole<A67<T>>();
+  blackhole<A68<T>>();
+  blackhole<A69<T>>();
+  blackhole<A70<T>>();
+  blackhole<A71<T>>();
+  blackhole<A72<T>>();
+  blackhole<A73<T>>();
+  blackhole<A74<T>>();
+  blackhole<A75<T>>();
+  blackhole<A76<T>>();
+  blackhole<A77<T>>();
+  blackhole<A78<T>>();
+  blackhole<A79<T>>();
+  blackhole<A80<T>>();
+  blackhole<A81<T>>();
+  blackhole<A82<T>>();
+  blackhole<A83<T>>();
+  blackhole<A84<T>>();
+  blackhole<A85<T>>();
+  blackhole<A86<T>>();
+  blackhole<A87<T>>();
+  blackhole<A88<T>>();
+  blackhole<A89<T>>();
+  blackhole<A90<T>>();
+  blackhole<A91<T>>();
+  blackhole<A92<T>>();
+  blackhole<A93<T>>();
+  blackhole<A94<T>>();
+  blackhole<A95<T>>();
+  blackhole<A96<T>>();
+  blackhole<A97<T>>();
+  blackhole<A98<T>>();
+  blackhole<A99<T>>();
+  blackhole<A100<T>>();
+  blackhole<A101<T>>();
+  blackhole<A102<T>>();
+  blackhole<A103<T>>();
+  blackhole<A104<T>>();
+  blackhole<A105<T>>();
+  blackhole<A106<T>>();
+  blackhole<A107<T>>();
+  blackhole<A108<T>>();
+  blackhole<A109<T>>();
+  blackhole<A110<T>>();
+  blackhole<A111<T>>();
+  blackhole<A112<T>>();
+  blackhole<A113<T>>();
+  blackhole<A114<T>>();
+  blackhole<A115<T>>();
+  blackhole<A116<T>>();
+  blackhole<A117<T>>();
+  blackhole<A118<T>>();
+  blackhole<A119<T>>();
+  blackhole<A120<T>>();
+  blackhole<A121<T>>();
+  blackhole<A122<T>>();
+  blackhole<A123<T>>();
+  blackhole<A124<T>>();
+  blackhole<A125<T>>();
+  blackhole<A126<T>>();
+  blackhole<A127<T>>();
+  blackhole<A128<T>>();
+  blackhole<A129<T>>();
+  blackhole<A130<T>>();
+  blackhole<A131<T>>();
+  blackhole<A132<T>>();
+  blackhole<A133<T>>();
+  blackhole<A134<T>>();
+  blackhole<A135<T>>();
+  blackhole<A136<T>>();
+  blackhole<A137<T>>();
+  blackhole<A138<T>>();
+  blackhole<A139<T>>();
+  blackhole<A140<T>>();
+  blackhole<A141<T>>();
+  blackhole<A142<T>>();
+  blackhole<A143<T>>();
+  blackhole<A144<T>>();
+  blackhole<A145<T>>();
+  blackhole<A146<T>>();
+  blackhole<A147<T>>();
+  blackhole<A148<T>>();
+  blackhole<A149<T>>();
+  blackhole<A150<T>>();
+  blackhole<A151<T>>();
+  blackhole<A152<T>>();
+  blackhole<A153<T>>();
+  blackhole<A154<T>>();
+  blackhole<A155<T>>();
+  blackhole<A156<T>>();
+  blackhole<A157<T>>();
+  blackhole<A158<T>>();
+  blackhole<A159<T>>();
+  blackhole<A160<T>>();
+  blackhole<A161<T>>();
+  blackhole<A162<T>>();
+  blackhole<A163<T>>();
+  blackhole<A164<T>>();
+  blackhole<A165<T>>();
+  blackhole<A166<T>>();
+  blackhole<A167<T>>();
+  blackhole<A168<T>>();
+  blackhole<A169<T>>();
+  blackhole<A170<T>>();
+  blackhole<A171<T>>();
+  blackhole<A172<T>>();
+  blackhole<A173<T>>();
+  blackhole<A174<T>>();
+  blackhole<A175<T>>();
+  blackhole<A176<T>>();
+  blackhole<A177<T>>();
+  blackhole<A178<T>>();
+  blackhole<A179<T>>();
+  blackhole<A180<T>>();
+  blackhole<A181<T>>();
+  blackhole<A182<T>>();
+  blackhole<A183<T>>();
+  blackhole<A184<T>>();
+  blackhole<A185<T>>();
+  blackhole<A186<T>>();
+  blackhole<A187<T>>();
+  blackhole<A188<T>>();
+  blackhole<A189<T>>();
+  blackhole<A190<T>>();
+  blackhole<A191<T>>();
+  blackhole<A192<T>>();
+  blackhole<A193<T>>();
+  blackhole<A194<T>>();
+  blackhole<A195<T>>();
+  blackhole<A196<T>>();
+  blackhole<A197<T>>();
+  blackhole<A198<T>>();
+  blackhole<A199<T>>();
+  blackhole<A200<T>>();
+  blackhole<A201<T>>();
+  blackhole<A202<T>>();
+  blackhole<A203<T>>();
+  blackhole<A204<T>>();
+  blackhole<A205<T>>();
+  blackhole<A206<T>>();
+  blackhole<A207<T>>();
+  blackhole<A208<T>>();
+  blackhole<A209<T>>();
+  blackhole<A210<T>>();
+  blackhole<A211<T>>();
+  blackhole<A212<T>>();
+  blackhole<A213<T>>();
+  blackhole<A214<T>>();
+  blackhole<A215<T>>();
+  blackhole<A216<T>>();
+  blackhole<A217<T>>();
+  blackhole<A218<T>>();
+  blackhole<A219<T>>();
+  blackhole<A220<T>>();
+  blackhole<A221<T>>();
+  blackhole<A222<T>>();
+  blackhole<A223<T>>();
+  blackhole<A224<T>>();
+  blackhole<A225<T>>();
+  blackhole<A226<T>>();
+  blackhole<A227<T>>();
+  blackhole<A228<T>>();
+  blackhole<A229<T>>();
+  blackhole<A230<T>>();
+  blackhole<A231<T>>();
+  blackhole<A232<T>>();
+  blackhole<A233<T>>();
+  blackhole<A234<T>>();
+  blackhole<A235<T>>();
+  blackhole<A236<T>>();
+  blackhole<A237<T>>();
+  blackhole<A238<T>>();
+  blackhole<A239<T>>();
+  blackhole<A240<T>>();
+  blackhole<A241<T>>();
+  blackhole<A242<T>>();
+  blackhole<A243<T>>();
+  blackhole<A244<T>>();
+  blackhole<A245<T>>();
+  blackhole<A246<T>>();
+  blackhole<A247<T>>();
+  blackhole<A248<T>>();
+  blackhole<A249<T>>();
+  blackhole<A250<T>>();
+  blackhole<A251<T>>();
+  blackhole<A252<T>>();
+  blackhole<A253<T>>();
+  blackhole<A254<T>>();
+  blackhole<A255<T>>();
+  blackhole<A256<T>>();
+  blackhole<A257<T>>();
+  blackhole<A258<T>>();
+  blackhole<A259<T>>();
+  blackhole<A260<T>>();
+  blackhole<A261<T>>();
+  blackhole<A262<T>>();
+  blackhole<A263<T>>();
+  blackhole<A264<T>>();
+  blackhole<A265<T>>();
+  blackhole<A266<T>>();
+  blackhole<A267<T>>();
+  blackhole<A268<T>>();
+  blackhole<A269<T>>();
+  blackhole<A270<T>>();
+  blackhole<A271<T>>();
+  blackhole<A272<T>>();
+  blackhole<A273<T>>();
+  blackhole<A274<T>>();
+  blackhole<A275<T>>();
+  blackhole<A276<T>>();
+  blackhole<A277<T>>();
+  blackhole<A278<T>>();
+  blackhole<A279<T>>();
+  blackhole<A280<T>>();
+  blackhole<A281<T>>();
+  blackhole<A282<T>>();
+  blackhole<A283<T>>();
+  blackhole<A284<T>>();
+  blackhole<A285<T>>();
+  blackhole<A286<T>>();
+  blackhole<A287<T>>();
+  blackhole<A288<T>>();
+  blackhole<A289<T>>();
+  blackhole<A290<T>>();
+  blackhole<A291<T>>();
+  blackhole<A292<T>>();
+  blackhole<A293<T>>();
+  blackhole<A294<T>>();
+  blackhole<A295<T>>();
+  blackhole<A296<T>>();
+  blackhole<A297<T>>();
+  blackhole<A298<T>>();
+  blackhole<A299<T>>();
+  blackhole<A300<T>>();
+  blackhole<A301<T>>();
+  blackhole<A302<T>>();
+  blackhole<A303<T>>();
+  blackhole<A304<T>>();
+  blackhole<A305<T>>();
+  blackhole<A306<T>>();
+  blackhole<A307<T>>();
+  blackhole<A308<T>>();
+  blackhole<A309<T>>();
+  blackhole<A310<T>>();
+  blackhole<A311<T>>();
+  blackhole<A312<T>>();
+  blackhole<A313<T>>();
+  blackhole<A314<T>>();
+  blackhole<A315<T>>();
+  blackhole<A316<T>>();
+  blackhole<A317<T>>();
+  blackhole<A318<T>>();
+  blackhole<A319<T>>();
+  blackhole<A320<T>>();
+  blackhole<A321<T>>();
+  blackhole<A322<T>>();
+  blackhole<A323<T>>();
+  blackhole<A324<T>>();
+  blackhole<A325<T>>();
+  blackhole<A326<T>>();
+  blackhole<A327<T>>();
+  blackhole<A328<T>>();
+  blackhole<A329<T>>();
+  blackhole<A330<T>>();
+  blackhole<A331<T>>();
+  blackhole<A332<T>>();
+  blackhole<A333<T>>();
+  blackhole<A334<T>>();
+  blackhole<A335<T>>();
+  blackhole<A336<T>>();
+  blackhole<A337<T>>();
+  blackhole<A338<T>>();
+  blackhole<A339<T>>();
+  blackhole<A340<T>>();
+  blackhole<A341<T>>();
+  blackhole<A342<T>>();
+  blackhole<A343<T>>();
+  blackhole<A344<T>>();
+  blackhole<A345<T>>();
+  blackhole<A346<T>>();
+  blackhole<A347<T>>();
+  blackhole<A348<T>>();
+  blackhole<A349<T>>();
+  blackhole<A350<T>>();
+  blackhole<A351<T>>();
+  blackhole<A352<T>>();
+  blackhole<A353<T>>();
+  blackhole<A354<T>>();
+  blackhole<A355<T>>();
+  blackhole<A356<T>>();
+  blackhole<A357<T>>();
+  blackhole<A358<T>>();
+  blackhole<A359<T>>();
+  blackhole<A360<T>>();
+  blackhole<A361<T>>();
+  blackhole<A362<T>>();
+  blackhole<A363<T>>();
+  blackhole<A364<T>>();
+  blackhole<A365<T>>();
+  blackhole<A366<T>>();
+  blackhole<A367<T>>();
+  blackhole<A368<T>>();
+  blackhole<A369<T>>();
+  blackhole<A370<T>>();
+  blackhole<A371<T>>();
+  blackhole<A372<T>>();
+  blackhole<A373<T>>();
+  blackhole<A374<T>>();
+  blackhole<A375<T>>();
+  blackhole<A376<T>>();
+  blackhole<A377<T>>();
+  blackhole<A378<T>>();
+  blackhole<A379<T>>();
+  blackhole<A380<T>>();
+  blackhole<A381<T>>();
+  blackhole<A382<T>>();
+  blackhole<A383<T>>();
+  blackhole<A384<T>>();
+  blackhole<A385<T>>();
+  blackhole<A386<T>>();
+  blackhole<A387<T>>();
+  blackhole<A388<T>>();
+  blackhole<A389<T>>();
+  blackhole<A390<T>>();
+  blackhole<A391<T>>();
+  blackhole<A392<T>>();
+  blackhole<A393<T>>();
+  blackhole<A394<T>>();
+  blackhole<A395<T>>();
+  blackhole<A396<T>>();
+  blackhole<A397<T>>();
+  blackhole<A398<T>>();
+  blackhole<A399<T>>();
+  blackhole<A400<T>>();
+  blackhole<A401<T>>();
+  blackhole<A402<T>>();
+  blackhole<A403<T>>();
+  blackhole<A404<T>>();
+  blackhole<A405<T>>();
+  blackhole<A406<T>>();
+  blackhole<A407<T>>();
+  blackhole<A408<T>>();
+  blackhole<A409<T>>();
+  blackhole<A410<T>>();
+  blackhole<A411<T>>();
+  blackhole<A412<T>>();
+  blackhole<A413<T>>();
+  blackhole<A414<T>>();
+  blackhole<A415<T>>();
+  blackhole<A416<T>>();
+  blackhole<A417<T>>();
+  blackhole<A418<T>>();
+  blackhole<A419<T>>();
+  blackhole<A420<T>>();
+  blackhole<A421<T>>();
+  blackhole<A422<T>>();
+  blackhole<A423<T>>();
+  blackhole<A424<T>>();
+  blackhole<A425<T>>();
+  blackhole<A426<T>>();
+  blackhole<A427<T>>();
+  blackhole<A428<T>>();
+  blackhole<A429<T>>();
+  blackhole<A430<T>>();
+  blackhole<A431<T>>();
+  blackhole<A432<T>>();
+  blackhole<A433<T>>();
+  blackhole<A434<T>>();
+  blackhole<A435<T>>();
+  blackhole<A436<T>>();
+  blackhole<A437<T>>();
+  blackhole<A438<T>>();
+  blackhole<A439<T>>();
+  blackhole<A440<T>>();
+  blackhole<A441<T>>();
+  blackhole<A442<T>>();
+  blackhole<A443<T>>();
+  blackhole<A444<T>>();
+  blackhole<A445<T>>();
+  blackhole<A446<T>>();
+  blackhole<A447<T>>();
+  blackhole<A448<T>>();
+  blackhole<A449<T>>();
+  blackhole<A450<T>>();
+  blackhole<A451<T>>();
+  blackhole<A452<T>>();
+  blackhole<A453<T>>();
+  blackhole<A454<T>>();
+  blackhole<A455<T>>();
+  blackhole<A456<T>>();
+  blackhole<A457<T>>();
+  blackhole<A458<T>>();
+  blackhole<A459<T>>();
+  blackhole<A460<T>>();
+  blackhole<A461<T>>();
+  blackhole<A462<T>>();
+  blackhole<A463<T>>();
+  blackhole<A464<T>>();
+  blackhole<A465<T>>();
+  blackhole<A466<T>>();
+  blackhole<A467<T>>();
+  blackhole<A468<T>>();
+  blackhole<A469<T>>();
+  blackhole<A470<T>>();
+  blackhole<A471<T>>();
+  blackhole<A472<T>>();
+  blackhole<A473<T>>();
+  blackhole<A474<T>>();
+  blackhole<A475<T>>();
+  blackhole<A476<T>>();
+  blackhole<A477<T>>();
+  blackhole<A478<T>>();
+  blackhole<A479<T>>();
+  blackhole<A480<T>>();
+  blackhole<A481<T>>();
+  blackhole<A482<T>>();
+  blackhole<A483<T>>();
+  blackhole<A484<T>>();
+  blackhole<A485<T>>();
+  blackhole<A486<T>>();
+  blackhole<A487<T>>();
+  blackhole<A488<T>>();
+  blackhole<A489<T>>();
+  blackhole<A490<T>>();
+  blackhole<A491<T>>();
+  blackhole<A492<T>>();
+  blackhole<A493<T>>();
+  blackhole<A494<T>>();
+  blackhole<A495<T>>();
+  blackhole<A496<T>>();
+  blackhole<A497<T>>();
+  blackhole<A498<T>>();
+  blackhole<A499<T>>();
+  blackhole<A500<T>>();
+  blackhole<A501<T>>();
+  blackhole<A502<T>>();
+  blackhole<A503<T>>();
+  blackhole<A504<T>>();
+  blackhole<A505<T>>();
+  blackhole<A506<T>>();
+  blackhole<A507<T>>();
+  blackhole<A508<T>>();
+  blackhole<A509<T>>();
+  blackhole<A510<T>>();
+  blackhole<A511<T>>();
+  blackhole<A512<T>>();
+  blackhole<A513<T>>();
+  blackhole<A514<T>>();
+  blackhole<A515<T>>();
+  blackhole<A516<T>>();
+  blackhole<A517<T>>();
+  blackhole<A518<T>>();
+  blackhole<A519<T>>();
+  blackhole<A520<T>>();
+  blackhole<A521<T>>();
+  blackhole<A522<T>>();
+  blackhole<A523<T>>();
+  blackhole<A524<T>>();
+  blackhole<A525<T>>();
+  blackhole<A526<T>>();
+  blackhole<A527<T>>();
+  blackhole<A528<T>>();
+  blackhole<A529<T>>();
+  blackhole<A530<T>>();
+  blackhole<A531<T>>();
+  blackhole<A532<T>>();
+  blackhole<A533<T>>();
+  blackhole<A534<T>>();
+  blackhole<A535<T>>();
+  blackhole<A536<T>>();
+  blackhole<A537<T>>();
+  blackhole<A538<T>>();
+  blackhole<A539<T>>();
+  blackhole<A540<T>>();
+  blackhole<A541<T>>();
+  blackhole<A542<T>>();
+  blackhole<A543<T>>();
+  blackhole<A544<T>>();
+  blackhole<A545<T>>();
+  blackhole<A546<T>>();
+  blackhole<A547<T>>();
+  blackhole<A548<T>>();
+  blackhole<A549<T>>();
+  blackhole<A550<T>>();
+  blackhole<A551<T>>();
+  blackhole<A552<T>>();
+  blackhole<A553<T>>();
+  blackhole<A554<T>>();
+  blackhole<A555<T>>();
+  blackhole<A556<T>>();
+  blackhole<A557<T>>();
+  blackhole<A558<T>>();
+  blackhole<A559<T>>();
+  blackhole<A560<T>>();
+  blackhole<A561<T>>();
+  blackhole<A562<T>>();
+  blackhole<A563<T>>();
+  blackhole<A564<T>>();
+  blackhole<A565<T>>();
+  blackhole<A566<T>>();
+  blackhole<A567<T>>();
+  blackhole<A568<T>>();
+  blackhole<A569<T>>();
+  blackhole<A570<T>>();
+  blackhole<A571<T>>();
+  blackhole<A572<T>>();
+  blackhole<A573<T>>();
+  blackhole<A574<T>>();
+  blackhole<A575<T>>();
+  blackhole<A576<T>>();
+  blackhole<A577<T>>();
+  blackhole<A578<T>>();
+  blackhole<A579<T>>();
+  blackhole<A580<T>>();
+  blackhole<A581<T>>();
+  blackhole<A582<T>>();
+  blackhole<A583<T>>();
+  blackhole<A584<T>>();
+  blackhole<A585<T>>();
+  blackhole<A586<T>>();
+  blackhole<A587<T>>();
+  blackhole<A588<T>>();
+  blackhole<A589<T>>();
+  blackhole<A590<T>>();
+  blackhole<A591<T>>();
+  blackhole<A592<T>>();
+  blackhole<A593<T>>();
+  blackhole<A594<T>>();
+  blackhole<A595<T>>();
+  blackhole<A596<T>>();
+  blackhole<A597<T>>();
+  blackhole<A598<T>>();
+  blackhole<A599<T>>();
+  blackhole<A600<T>>();
+  blackhole<A601<T>>();
+  blackhole<A602<T>>();
+  blackhole<A603<T>>();
+  blackhole<A604<T>>();
+  blackhole<A605<T>>();
+  blackhole<A606<T>>();
+  blackhole<A607<T>>();
+  blackhole<A608<T>>();
+  blackhole<A609<T>>();
+  blackhole<A610<T>>();
+  blackhole<A611<T>>();
+  blackhole<A612<T>>();
+  blackhole<A613<T>>();
+  blackhole<A614<T>>();
+  blackhole<A615<T>>();
+  blackhole<A616<T>>();
+  blackhole<A617<T>>();
+  blackhole<A618<T>>();
+  blackhole<A619<T>>();
+  blackhole<A620<T>>();
+  blackhole<A621<T>>();
+  blackhole<A622<T>>();
+  blackhole<A623<T>>();
+  blackhole<A624<T>>();
+  blackhole<A625<T>>();
+  blackhole<A626<T>>();
+  blackhole<A627<T>>();
+  blackhole<A628<T>>();
+  blackhole<A629<T>>();
+  blackhole<A630<T>>();
+  blackhole<A631<T>>();
+  blackhole<A632<T>>();
+  blackhole<A633<T>>();
+  blackhole<A634<T>>();
+  blackhole<A635<T>>();
+  blackhole<A636<T>>();
+  blackhole<A637<T>>();
+  blackhole<A638<T>>();
+  blackhole<A639<T>>();
+  blackhole<A640<T>>();
+  blackhole<A641<T>>();
+  blackhole<A642<T>>();
+  blackhole<A643<T>>();
+  blackhole<A644<T>>();
+  blackhole<A645<T>>();
+  blackhole<A646<T>>();
+  blackhole<A647<T>>();
+  blackhole<A648<T>>();
+  blackhole<A649<T>>();
+  blackhole<A650<T>>();
+  blackhole<A651<T>>();
+  blackhole<A652<T>>();
+  blackhole<A653<T>>();
+  blackhole<A654<T>>();
+  blackhole<A655<T>>();
+  blackhole<A656<T>>();
+  blackhole<A657<T>>();
+  blackhole<A658<T>>();
+  blackhole<A659<T>>();
+  blackhole<A660<T>>();
+  blackhole<A661<T>>();
+  blackhole<A662<T>>();
+  blackhole<A663<T>>();
+  blackhole<A664<T>>();
+  blackhole<A665<T>>();
+  blackhole<A666<T>>();
+  blackhole<A667<T>>();
+  blackhole<A668<T>>();
+  blackhole<A669<T>>();
+  blackhole<A670<T>>();
+  blackhole<A671<T>>();
+  blackhole<A672<T>>();
+  blackhole<A673<T>>();
+  blackhole<A674<T>>();
+  blackhole<A675<T>>();
+  blackhole<A676<T>>();
+  blackhole<A677<T>>();
+  blackhole<A678<T>>();
+  blackhole<A679<T>>();
+  blackhole<A680<T>>();
+  blackhole<A681<T>>();
+  blackhole<A682<T>>();
+  blackhole<A683<T>>();
+  blackhole<A684<T>>();
+  blackhole<A685<T>>();
+  blackhole<A686<T>>();
+  blackhole<A687<T>>();
+  blackhole<A688<T>>();
+  blackhole<A689<T>>();
+  blackhole<A690<T>>();
+  blackhole<A691<T>>();
+  blackhole<A692<T>>();
+  blackhole<A693<T>>();
+  blackhole<A694<T>>();
+  blackhole<A695<T>>();
+  blackhole<A696<T>>();
+  blackhole<A697<T>>();
+  blackhole<A698<T>>();
+  blackhole<A699<T>>();
+  blackhole<A700<T>>();
+  blackhole<A701<T>>();
+  blackhole<A702<T>>();
+  blackhole<A703<T>>();
+  blackhole<A704<T>>();
+  blackhole<A705<T>>();
+  blackhole<A706<T>>();
+  blackhole<A707<T>>();
+  blackhole<A708<T>>();
+  blackhole<A709<T>>();
+  blackhole<A710<T>>();
+  blackhole<A711<T>>();
+  blackhole<A712<T>>();
+  blackhole<A713<T>>();
+  blackhole<A714<T>>();
+  blackhole<A715<T>>();
+  blackhole<A716<T>>();
+  blackhole<A717<T>>();
+  blackhole<A718<T>>();
+  blackhole<A719<T>>();
+  blackhole<A720<T>>();
+  blackhole<A721<T>>();
+  blackhole<A722<T>>();
+  blackhole<A723<T>>();
+  blackhole<A724<T>>();
+  blackhole<A725<T>>();
+  blackhole<A726<T>>();
+  blackhole<A727<T>>();
+  blackhole<A728<T>>();
+  blackhole<A729<T>>();
+  blackhole<A730<T>>();
+  blackhole<A731<T>>();
+  blackhole<A732<T>>();
+  blackhole<A733<T>>();
+  blackhole<A734<T>>();
+  blackhole<A735<T>>();
+  blackhole<A736<T>>();
+  blackhole<A737<T>>();
+  blackhole<A738<T>>();
+  blackhole<A739<T>>();
+  blackhole<A740<T>>();
+  blackhole<A741<T>>();
+  blackhole<A742<T>>();
+  blackhole<A743<T>>();
+  blackhole<A744<T>>();
+  blackhole<A745<T>>();
+  blackhole<A746<T>>();
+  blackhole<A747<T>>();
+  blackhole<A748<T>>();
+  blackhole<A749<T>>();
+  blackhole<A750<T>>();
+  blackhole<A751<T>>();
+  blackhole<A752<T>>();
+  blackhole<A753<T>>();
+  blackhole<A754<T>>();
+  blackhole<A755<T>>();
+  blackhole<A756<T>>();
+  blackhole<A757<T>>();
+  blackhole<A758<T>>();
+  blackhole<A759<T>>();
+  blackhole<A760<T>>();
+  blackhole<A761<T>>();
+  blackhole<A762<T>>();
+  blackhole<A763<T>>();
+  blackhole<A764<T>>();
+  blackhole<A765<T>>();
+  blackhole<A766<T>>();
+  blackhole<A767<T>>();
+  blackhole<A768<T>>();
+  blackhole<A769<T>>();
+  blackhole<A770<T>>();
+  blackhole<A771<T>>();
+  blackhole<A772<T>>();
+  blackhole<A773<T>>();
+  blackhole<A774<T>>();
+  blackhole<A775<T>>();
+  blackhole<A776<T>>();
+  blackhole<A777<T>>();
+  blackhole<A778<T>>();
+  blackhole<A779<T>>();
+  blackhole<A780<T>>();
+  blackhole<A781<T>>();
+  blackhole<A782<T>>();
+  blackhole<A783<T>>();
+  blackhole<A784<T>>();
+  blackhole<A785<T>>();
+  blackhole<A786<T>>();
+  blackhole<A787<T>>();
+  blackhole<A788<T>>();
+  blackhole<A789<T>>();
+  blackhole<A790<T>>();
+  blackhole<A791<T>>();
+  blackhole<A792<T>>();
+  blackhole<A793<T>>();
+  blackhole<A794<T>>();
+  blackhole<A795<T>>();
+  blackhole<A796<T>>();
+  blackhole<A797<T>>();
+  blackhole<A798<T>>();
+  blackhole<A799<T>>();
+  blackhole<A800<T>>();
+  blackhole<A801<T>>();
+  blackhole<A802<T>>();
+  blackhole<A803<T>>();
+  blackhole<A804<T>>();
+  blackhole<A805<T>>();
+  blackhole<A806<T>>();
+  blackhole<A807<T>>();
+  blackhole<A808<T>>();
+  blackhole<A809<T>>();
+  blackhole<A810<T>>();
+  blackhole<A811<T>>();
+  blackhole<A812<T>>();
+  blackhole<A813<T>>();
+  blackhole<A814<T>>();
+  blackhole<A815<T>>();
+  blackhole<A816<T>>();
+  blackhole<A817<T>>();
+  blackhole<A818<T>>();
+  blackhole<A819<T>>();
+  blackhole<A820<T>>();
+  blackhole<A821<T>>();
+  blackhole<A822<T>>();
+  blackhole<A823<T>>();
+  blackhole<A824<T>>();
+  blackhole<A825<T>>();
+  blackhole<A826<T>>();
+  blackhole<A827<T>>();
+  blackhole<A828<T>>();
+  blackhole<A829<T>>();
+  blackhole<A830<T>>();
+  blackhole<A831<T>>();
+  blackhole<A832<T>>();
+  blackhole<A833<T>>();
+  blackhole<A834<T>>();
+  blackhole<A835<T>>();
+  blackhole<A836<T>>();
+  blackhole<A837<T>>();
+  blackhole<A838<T>>();
+  blackhole<A839<T>>();
+  blackhole<A840<T>>();
+  blackhole<A841<T>>();
+  blackhole<A842<T>>();
+  blackhole<A843<T>>();
+  blackhole<A844<T>>();
+  blackhole<A845<T>>();
+  blackhole<A846<T>>();
+  blackhole<A847<T>>();
+  blackhole<A848<T>>();
+  blackhole<A849<T>>();
+  blackhole<A850<T>>();
+  blackhole<A851<T>>();
+  blackhole<A852<T>>();
+  blackhole<A853<T>>();
+  blackhole<A854<T>>();
+  blackhole<A855<T>>();
+  blackhole<A856<T>>();
+  blackhole<A857<T>>();
+  blackhole<A858<T>>();
+  blackhole<A859<T>>();
+  blackhole<A860<T>>();
+  blackhole<A861<T>>();
+  blackhole<A862<T>>();
+  blackhole<A863<T>>();
+  blackhole<A864<T>>();
+  blackhole<A865<T>>();
+  blackhole<A866<T>>();
+  blackhole<A867<T>>();
+  blackhole<A868<T>>();
+  blackhole<A869<T>>();
+  blackhole<A870<T>>();
+  blackhole<A871<T>>();
+  blackhole<A872<T>>();
+  blackhole<A873<T>>();
+  blackhole<A874<T>>();
+  blackhole<A875<T>>();
+  blackhole<A876<T>>();
+  blackhole<A877<T>>();
+  blackhole<A878<T>>();
+  blackhole<A879<T>>();
+  blackhole<A880<T>>();
+  blackhole<A881<T>>();
+  blackhole<A882<T>>();
+  blackhole<A883<T>>();
+  blackhole<A884<T>>();
+  blackhole<A885<T>>();
+  blackhole<A886<T>>();
+  blackhole<A887<T>>();
+  blackhole<A888<T>>();
+  blackhole<A889<T>>();
+  blackhole<A890<T>>();
+  blackhole<A891<T>>();
+  blackhole<A892<T>>();
+  blackhole<A893<T>>();
+  blackhole<A894<T>>();
+  blackhole<A895<T>>();
+  blackhole<A896<T>>();
+  blackhole<A897<T>>();
+  blackhole<A898<T>>();
+  blackhole<A899<T>>();
+  blackhole<A900<T>>();
+  blackhole<A901<T>>();
+  blackhole<A902<T>>();
+  blackhole<A903<T>>();
+  blackhole<A904<T>>();
+  blackhole<A905<T>>();
+  blackhole<A906<T>>();
+  blackhole<A907<T>>();
+  blackhole<A908<T>>();
+  blackhole<A909<T>>();
+  blackhole<A910<T>>();
+  blackhole<A911<T>>();
+  blackhole<A912<T>>();
+  blackhole<A913<T>>();
+  blackhole<A914<T>>();
+  blackhole<A915<T>>();
+  blackhole<A916<T>>();
+  blackhole<A917<T>>();
+  blackhole<A918<T>>();
+  blackhole<A919<T>>();
+  blackhole<A920<T>>();
+  blackhole<A921<T>>();
+  blackhole<A922<T>>();
+  blackhole<A923<T>>();
+  blackhole<A924<T>>();
+  blackhole<A925<T>>();
+  blackhole<A926<T>>();
+  blackhole<A927<T>>();
+  blackhole<A928<T>>();
+  blackhole<A929<T>>();
+  blackhole<A930<T>>();
+  blackhole<A931<T>>();
+  blackhole<A932<T>>();
+  blackhole<A933<T>>();
+  blackhole<A934<T>>();
+  blackhole<A935<T>>();
+  blackhole<A936<T>>();
+  blackhole<A937<T>>();
+  blackhole<A938<T>>();
+  blackhole<A939<T>>();
+  blackhole<A940<T>>();
+  blackhole<A941<T>>();
+  blackhole<A942<T>>();
+  blackhole<A943<T>>();
+  blackhole<A944<T>>();
+  blackhole<A945<T>>();
+  blackhole<A946<T>>();
+  blackhole<A947<T>>();
+  blackhole<A948<T>>();
+  blackhole<A949<T>>();
+  blackhole<A950<T>>();
+  blackhole<A951<T>>();
+  blackhole<A952<T>>();
+  blackhole<A953<T>>();
+  blackhole<A954<T>>();
+  blackhole<A955<T>>();
+  blackhole<A956<T>>();
+  blackhole<A957<T>>();
+  blackhole<A958<T>>();
+  blackhole<A959<T>>();
+  blackhole<A960<T>>();
+  blackhole<A961<T>>();
+  blackhole<A962<T>>();
+  blackhole<A963<T>>();
+  blackhole<A964<T>>();
+  blackhole<A965<T>>();
+  blackhole<A966<T>>();
+  blackhole<A967<T>>();
+  blackhole<A968<T>>();
+  blackhole<A969<T>>();
+  blackhole<A970<T>>();
+  blackhole<A971<T>>();
+  blackhole<A972<T>>();
+  blackhole<A973<T>>();
+  blackhole<A974<T>>();
+  blackhole<A975<T>>();
+  blackhole<A976<T>>();
+  blackhole<A977<T>>();
+  blackhole<A978<T>>();
+  blackhole<A979<T>>();
+  blackhole<A980<T>>();
+  blackhole<A981<T>>();
+  blackhole<A982<T>>();
+  blackhole<A983<T>>();
+  blackhole<A984<T>>();
+  blackhole<A985<T>>();
+  blackhole<A986<T>>();
+  blackhole<A987<T>>();
+  blackhole<A988<T>>();
+  blackhole<A989<T>>();
+  blackhole<A990<T>>();
+  blackhole<A991<T>>();
+  blackhole<A992<T>>();
+  blackhole<A993<T>>();
+  blackhole<A994<T>>();
+  blackhole<A995<T>>();
+  blackhole<A996<T>>();
+  blackhole<A997<T>>();
+  blackhole<A998<T>>();
+  blackhole<A999<T>>();
+}
+
+class C0 {}
+
+class C1 {}
+
+class C2 {}
+
+class C3 {}
+
+class C4 {}
+
+class C5 {}
+
+class C6 {}
+
+class C7 {}
+
+class C8 {}
+
+class C9 {}
+
+class C10 {}
+
+class C11 {}
+
+class C12 {}
+
+class C13 {}
+
+class C14 {}
+
+class C15 {}
+
+class C16 {}
+
+class C17 {}
+
+class C18 {}
+
+class C19 {}
+
+class C20 {}
+
+class C21 {}
+
+class C22 {}
+
+class C23 {}
+
+class C24 {}
+
+class C25 {}
+
+class C26 {}
+
+class C27 {}
+
+class C28 {}
+
+class C29 {}
+
+class C30 {}
+
+class C31 {}
+
+class C32 {}
+
+class C33 {}
+
+class C34 {}
+
+class C35 {}
+
+class C36 {}
+
+class C37 {}
+
+class C38 {}
+
+class C39 {}
+
+class C40 {}
+
+class C41 {}
+
+class C42 {}
+
+class C43 {}
+
+class C44 {}
+
+class C45 {}
+
+class C46 {}
+
+class C47 {}
+
+class C48 {}
+
+class C49 {}
+
+class C50 {}
+
+class C51 {}
+
+class C52 {}
+
+class C53 {}
+
+class C54 {}
+
+class C55 {}
+
+class C56 {}
+
+class C57 {}
+
+class C58 {}
+
+class C59 {}
+
+class C60 {}
+
+class C61 {}
+
+class C62 {}
+
+class C63 {}
+
+class C64 {}
+
+class C65 {}
+
+class C66 {}
+
+class C67 {}
+
+class C68 {}
+
+class C69 {}
+
+class C70 {}
+
+class C71 {}
+
+class C72 {}
+
+class C73 {}
+
+class C74 {}
+
+class C75 {}
+
+class C76 {}
+
+class C77 {}
+
+class C78 {}
+
+class C79 {}
+
+class C80 {}
+
+class C81 {}
+
+class C82 {}
+
+class C83 {}
+
+class C84 {}
+
+class C85 {}
+
+class C86 {}
+
+class C87 {}
+
+class C88 {}
+
+class C89 {}
+
+class C90 {}
+
+class C91 {}
+
+class C92 {}
+
+class C93 {}
+
+class C94 {}
+
+class C95 {}
+
+class C96 {}
+
+class C97 {}
+
+class C98 {}
+
+class C99 {}
+
+class C100 {}
+
+class C101 {}
+
+class C102 {}
+
+class C103 {}
+
+class C104 {}
+
+class C105 {}
+
+class C106 {}
+
+class C107 {}
+
+class C108 {}
+
+class C109 {}
+
+class C110 {}
+
+class C111 {}
+
+class C112 {}
+
+class C113 {}
+
+class C114 {}
+
+class C115 {}
+
+class C116 {}
+
+class C117 {}
+
+class C118 {}
+
+class C119 {}
+
+class C120 {}
+
+class C121 {}
+
+class C122 {}
+
+class C123 {}
+
+class C124 {}
+
+class C125 {}
+
+class C126 {}
+
+class C127 {}
+
+class C128 {}
+
+class C129 {}
+
+class C130 {}
+
+class C131 {}
+
+class C132 {}
+
+class C133 {}
+
+class C134 {}
+
+class C135 {}
+
+class C136 {}
+
+class C137 {}
+
+class C138 {}
+
+class C139 {}
+
+class C140 {}
+
+class C141 {}
+
+class C142 {}
+
+class C143 {}
+
+class C144 {}
+
+class C145 {}
+
+class C146 {}
+
+class C147 {}
+
+class C148 {}
+
+class C149 {}
+
+class C150 {}
+
+class C151 {}
+
+class C152 {}
+
+class C153 {}
+
+class C154 {}
+
+class C155 {}
+
+class C156 {}
+
+class C157 {}
+
+class C158 {}
+
+class C159 {}
+
+class C160 {}
+
+class C161 {}
+
+class C162 {}
+
+class C163 {}
+
+class C164 {}
+
+class C165 {}
+
+class C166 {}
+
+class C167 {}
+
+class C168 {}
+
+class C169 {}
+
+class C170 {}
+
+class C171 {}
+
+class C172 {}
+
+class C173 {}
+
+class C174 {}
+
+class C175 {}
+
+class C176 {}
+
+class C177 {}
+
+class C178 {}
+
+class C179 {}
+
+class C180 {}
+
+class C181 {}
+
+class C182 {}
+
+class C183 {}
+
+class C184 {}
+
+class C185 {}
+
+class C186 {}
+
+class C187 {}
+
+class C188 {}
+
+class C189 {}
+
+class C190 {}
+
+class C191 {}
+
+class C192 {}
+
+class C193 {}
+
+class C194 {}
+
+class C195 {}
+
+class C196 {}
+
+class C197 {}
+
+class C198 {}
+
+class C199 {}
+
+class C200 {}
+
+class C201 {}
+
+class C202 {}
+
+class C203 {}
+
+class C204 {}
+
+class C205 {}
+
+class C206 {}
+
+class C207 {}
+
+class C208 {}
+
+class C209 {}
+
+class C210 {}
+
+class C211 {}
+
+class C212 {}
+
+class C213 {}
+
+class C214 {}
+
+class C215 {}
+
+class C216 {}
+
+class C217 {}
+
+class C218 {}
+
+class C219 {}
+
+class C220 {}
+
+class C221 {}
+
+class C222 {}
+
+class C223 {}
+
+class C224 {}
+
+class C225 {}
+
+class C226 {}
+
+class C227 {}
+
+class C228 {}
+
+class C229 {}
+
+class C230 {}
+
+class C231 {}
+
+class C232 {}
+
+class C233 {}
+
+class C234 {}
+
+class C235 {}
+
+class C236 {}
+
+class C237 {}
+
+class C238 {}
+
+class C239 {}
+
+class C240 {}
+
+class C241 {}
+
+class C242 {}
+
+class C243 {}
+
+class C244 {}
+
+class C245 {}
+
+class C246 {}
+
+class C247 {}
+
+class C248 {}
+
+class C249 {}
+
+class C250 {}
+
+class C251 {}
+
+class C252 {}
+
+class C253 {}
+
+class C254 {}
+
+class C255 {}
+
+class C256 {}
+
+class C257 {}
+
+class C258 {}
+
+class C259 {}
+
+class C260 {}
+
+class C261 {}
+
+class C262 {}
+
+class C263 {}
+
+class C264 {}
+
+class C265 {}
+
+class C266 {}
+
+class C267 {}
+
+class C268 {}
+
+class C269 {}
+
+class C270 {}
+
+class C271 {}
+
+class C272 {}
+
+class C273 {}
+
+class C274 {}
+
+class C275 {}
+
+class C276 {}
+
+class C277 {}
+
+class C278 {}
+
+class C279 {}
+
+class C280 {}
+
+class C281 {}
+
+class C282 {}
+
+class C283 {}
+
+class C284 {}
+
+class C285 {}
+
+class C286 {}
+
+class C287 {}
+
+class C288 {}
+
+class C289 {}
+
+class C290 {}
+
+class C291 {}
+
+class C292 {}
+
+class C293 {}
+
+class C294 {}
+
+class C295 {}
+
+class C296 {}
+
+class C297 {}
+
+class C298 {}
+
+class C299 {}
+
+class C300 {}
+
+class C301 {}
+
+class C302 {}
+
+class C303 {}
+
+class C304 {}
+
+class C305 {}
+
+class C306 {}
+
+class C307 {}
+
+class C308 {}
+
+class C309 {}
+
+class C310 {}
+
+class C311 {}
+
+class C312 {}
+
+class C313 {}
+
+class C314 {}
+
+class C315 {}
+
+class C316 {}
+
+class C317 {}
+
+class C318 {}
+
+class C319 {}
+
+class C320 {}
+
+class C321 {}
+
+class C322 {}
+
+class C323 {}
+
+class C324 {}
+
+class C325 {}
+
+class C326 {}
+
+class C327 {}
+
+class C328 {}
+
+class C329 {}
+
+class C330 {}
+
+class C331 {}
+
+class C332 {}
+
+class C333 {}
+
+class C334 {}
+
+class C335 {}
+
+class C336 {}
+
+class C337 {}
+
+class C338 {}
+
+class C339 {}
+
+class C340 {}
+
+class C341 {}
+
+class C342 {}
+
+class C343 {}
+
+class C344 {}
+
+class C345 {}
+
+class C346 {}
+
+class C347 {}
+
+class C348 {}
+
+class C349 {}
+
+class C350 {}
+
+class C351 {}
+
+class C352 {}
+
+class C353 {}
+
+class C354 {}
+
+class C355 {}
+
+class C356 {}
+
+class C357 {}
+
+class C358 {}
+
+class C359 {}
+
+class C360 {}
+
+class C361 {}
+
+class C362 {}
+
+class C363 {}
+
+class C364 {}
+
+class C365 {}
+
+class C366 {}
+
+class C367 {}
+
+class C368 {}
+
+class C369 {}
+
+class C370 {}
+
+class C371 {}
+
+class C372 {}
+
+class C373 {}
+
+class C374 {}
+
+class C375 {}
+
+class C376 {}
+
+class C377 {}
+
+class C378 {}
+
+class C379 {}
+
+class C380 {}
+
+class C381 {}
+
+class C382 {}
+
+class C383 {}
+
+class C384 {}
+
+class C385 {}
+
+class C386 {}
+
+class C387 {}
+
+class C388 {}
+
+class C389 {}
+
+class C390 {}
+
+class C391 {}
+
+class C392 {}
+
+class C393 {}
+
+class C394 {}
+
+class C395 {}
+
+class C396 {}
+
+class C397 {}
+
+class C398 {}
+
+class C399 {}
+
+class C400 {}
+
+class C401 {}
+
+class C402 {}
+
+class C403 {}
+
+class C404 {}
+
+class C405 {}
+
+class C406 {}
+
+class C407 {}
+
+class C408 {}
+
+class C409 {}
+
+class C410 {}
+
+class C411 {}
+
+class C412 {}
+
+class C413 {}
+
+class C414 {}
+
+class C415 {}
+
+class C416 {}
+
+class C417 {}
+
+class C418 {}
+
+class C419 {}
+
+class C420 {}
+
+class C421 {}
+
+class C422 {}
+
+class C423 {}
+
+class C424 {}
+
+class C425 {}
+
+class C426 {}
+
+class C427 {}
+
+class C428 {}
+
+class C429 {}
+
+class C430 {}
+
+class C431 {}
+
+class C432 {}
+
+class C433 {}
+
+class C434 {}
+
+class C435 {}
+
+class C436 {}
+
+class C437 {}
+
+class C438 {}
+
+class C439 {}
+
+class C440 {}
+
+class C441 {}
+
+class C442 {}
+
+class C443 {}
+
+class C444 {}
+
+class C445 {}
+
+class C446 {}
+
+class C447 {}
+
+class C448 {}
+
+class C449 {}
+
+class C450 {}
+
+class C451 {}
+
+class C452 {}
+
+class C453 {}
+
+class C454 {}
+
+class C455 {}
+
+class C456 {}
+
+class C457 {}
+
+class C458 {}
+
+class C459 {}
+
+class C460 {}
+
+class C461 {}
+
+class C462 {}
+
+class C463 {}
+
+class C464 {}
+
+class C465 {}
+
+class C466 {}
+
+class C467 {}
+
+class C468 {}
+
+class C469 {}
+
+class C470 {}
+
+class C471 {}
+
+class C472 {}
+
+class C473 {}
+
+class C474 {}
+
+class C475 {}
+
+class C476 {}
+
+class C477 {}
+
+class C478 {}
+
+class C479 {}
+
+class C480 {}
+
+class C481 {}
+
+class C482 {}
+
+class C483 {}
+
+class C484 {}
+
+class C485 {}
+
+class C486 {}
+
+class C487 {}
+
+class C488 {}
+
+class C489 {}
+
+class C490 {}
+
+class C491 {}
+
+class C492 {}
+
+class C493 {}
+
+class C494 {}
+
+class C495 {}
+
+class C496 {}
+
+class C497 {}
+
+class C498 {}
+
+class C499 {}
+
+class C500 {}
+
+class C501 {}
+
+class C502 {}
+
+class C503 {}
+
+class C504 {}
+
+class C505 {}
+
+class C506 {}
+
+class C507 {}
+
+class C508 {}
+
+class C509 {}
+
+class C510 {}
+
+class C511 {}
+
+class C512 {}
+
+class C513 {}
+
+class C514 {}
+
+class C515 {}
+
+class C516 {}
+
+class C517 {}
+
+class C518 {}
+
+class C519 {}
+
+class C520 {}
+
+class C521 {}
+
+class C522 {}
+
+class C523 {}
+
+class C524 {}
+
+class C525 {}
+
+class C526 {}
+
+class C527 {}
+
+class C528 {}
+
+class C529 {}
+
+class C530 {}
+
+class C531 {}
+
+class C532 {}
+
+class C533 {}
+
+class C534 {}
+
+class C535 {}
+
+class C536 {}
+
+class C537 {}
+
+class C538 {}
+
+class C539 {}
+
+class C540 {}
+
+class C541 {}
+
+class C542 {}
+
+class C543 {}
+
+class C544 {}
+
+class C545 {}
+
+class C546 {}
+
+class C547 {}
+
+class C548 {}
+
+class C549 {}
+
+class C550 {}
+
+class C551 {}
+
+class C552 {}
+
+class C553 {}
+
+class C554 {}
+
+class C555 {}
+
+class C556 {}
+
+class C557 {}
+
+class C558 {}
+
+class C559 {}
+
+class C560 {}
+
+class C561 {}
+
+class C562 {}
+
+class C563 {}
+
+class C564 {}
+
+class C565 {}
+
+class C566 {}
+
+class C567 {}
+
+class C568 {}
+
+class C569 {}
+
+class C570 {}
+
+class C571 {}
+
+class C572 {}
+
+class C573 {}
+
+class C574 {}
+
+class C575 {}
+
+class C576 {}
+
+class C577 {}
+
+class C578 {}
+
+class C579 {}
+
+class C580 {}
+
+class C581 {}
+
+class C582 {}
+
+class C583 {}
+
+class C584 {}
+
+class C585 {}
+
+class C586 {}
+
+class C587 {}
+
+class C588 {}
+
+class C589 {}
+
+class C590 {}
+
+class C591 {}
+
+class C592 {}
+
+class C593 {}
+
+class C594 {}
+
+class C595 {}
+
+class C596 {}
+
+class C597 {}
+
+class C598 {}
+
+class C599 {}
+
+class C600 {}
+
+class C601 {}
+
+class C602 {}
+
+class C603 {}
+
+class C604 {}
+
+class C605 {}
+
+class C606 {}
+
+class C607 {}
+
+class C608 {}
+
+class C609 {}
+
+class C610 {}
+
+class C611 {}
+
+class C612 {}
+
+class C613 {}
+
+class C614 {}
+
+class C615 {}
+
+class C616 {}
+
+class C617 {}
+
+class C618 {}
+
+class C619 {}
+
+class C620 {}
+
+class C621 {}
+
+class C622 {}
+
+class C623 {}
+
+class C624 {}
+
+class C625 {}
+
+class C626 {}
+
+class C627 {}
+
+class C628 {}
+
+class C629 {}
+
+class C630 {}
+
+class C631 {}
+
+class C632 {}
+
+class C633 {}
+
+class C634 {}
+
+class C635 {}
+
+class C636 {}
+
+class C637 {}
+
+class C638 {}
+
+class C639 {}
+
+class C640 {}
+
+class C641 {}
+
+class C642 {}
+
+class C643 {}
+
+class C644 {}
+
+class C645 {}
+
+class C646 {}
+
+class C647 {}
+
+class C648 {}
+
+class C649 {}
+
+class C650 {}
+
+class C651 {}
+
+class C652 {}
+
+class C653 {}
+
+class C654 {}
+
+class C655 {}
+
+class C656 {}
+
+class C657 {}
+
+class C658 {}
+
+class C659 {}
+
+class C660 {}
+
+class C661 {}
+
+class C662 {}
+
+class C663 {}
+
+class C664 {}
+
+class C665 {}
+
+class C666 {}
+
+class C667 {}
+
+class C668 {}
+
+class C669 {}
+
+class C670 {}
+
+class C671 {}
+
+class C672 {}
+
+class C673 {}
+
+class C674 {}
+
+class C675 {}
+
+class C676 {}
+
+class C677 {}
+
+class C678 {}
+
+class C679 {}
+
+class C680 {}
+
+class C681 {}
+
+class C682 {}
+
+class C683 {}
+
+class C684 {}
+
+class C685 {}
+
+class C686 {}
+
+class C687 {}
+
+class C688 {}
+
+class C689 {}
+
+class C690 {}
+
+class C691 {}
+
+class C692 {}
+
+class C693 {}
+
+class C694 {}
+
+class C695 {}
+
+class C696 {}
+
+class C697 {}
+
+class C698 {}
+
+class C699 {}
+
+class C700 {}
+
+class C701 {}
+
+class C702 {}
+
+class C703 {}
+
+class C704 {}
+
+class C705 {}
+
+class C706 {}
+
+class C707 {}
+
+class C708 {}
+
+class C709 {}
+
+class C710 {}
+
+class C711 {}
+
+class C712 {}
+
+class C713 {}
+
+class C714 {}
+
+class C715 {}
+
+class C716 {}
+
+class C717 {}
+
+class C718 {}
+
+class C719 {}
+
+class C720 {}
+
+class C721 {}
+
+class C722 {}
+
+class C723 {}
+
+class C724 {}
+
+class C725 {}
+
+class C726 {}
+
+class C727 {}
+
+class C728 {}
+
+class C729 {}
+
+class C730 {}
+
+class C731 {}
+
+class C732 {}
+
+class C733 {}
+
+class C734 {}
+
+class C735 {}
+
+class C736 {}
+
+class C737 {}
+
+class C738 {}
+
+class C739 {}
+
+class C740 {}
+
+class C741 {}
+
+class C742 {}
+
+class C743 {}
+
+class C744 {}
+
+class C745 {}
+
+class C746 {}
+
+class C747 {}
+
+class C748 {}
+
+class C749 {}
+
+class C750 {}
+
+class C751 {}
+
+class C752 {}
+
+class C753 {}
+
+class C754 {}
+
+class C755 {}
+
+class C756 {}
+
+class C757 {}
+
+class C758 {}
+
+class C759 {}
+
+class C760 {}
+
+class C761 {}
+
+class C762 {}
+
+class C763 {}
+
+class C764 {}
+
+class C765 {}
+
+class C766 {}
+
+class C767 {}
+
+class C768 {}
+
+class C769 {}
+
+class C770 {}
+
+class C771 {}
+
+class C772 {}
+
+class C773 {}
+
+class C774 {}
+
+class C775 {}
+
+class C776 {}
+
+class C777 {}
+
+class C778 {}
+
+class C779 {}
+
+class C780 {}
+
+class C781 {}
+
+class C782 {}
+
+class C783 {}
+
+class C784 {}
+
+class C785 {}
+
+class C786 {}
+
+class C787 {}
+
+class C788 {}
+
+class C789 {}
+
+class C790 {}
+
+class C791 {}
+
+class C792 {}
+
+class C793 {}
+
+class C794 {}
+
+class C795 {}
+
+class C796 {}
+
+class C797 {}
+
+class C798 {}
+
+class C799 {}
+
+class C800 {}
+
+class C801 {}
+
+class C802 {}
+
+class C803 {}
+
+class C804 {}
+
+class C805 {}
+
+class C806 {}
+
+class C807 {}
+
+class C808 {}
+
+class C809 {}
+
+class C810 {}
+
+class C811 {}
+
+class C812 {}
+
+class C813 {}
+
+class C814 {}
+
+class C815 {}
+
+class C816 {}
+
+class C817 {}
+
+class C818 {}
+
+class C819 {}
+
+class C820 {}
+
+class C821 {}
+
+class C822 {}
+
+class C823 {}
+
+class C824 {}
+
+class C825 {}
+
+class C826 {}
+
+class C827 {}
+
+class C828 {}
+
+class C829 {}
+
+class C830 {}
+
+class C831 {}
+
+class C832 {}
+
+class C833 {}
+
+class C834 {}
+
+class C835 {}
+
+class C836 {}
+
+class C837 {}
+
+class C838 {}
+
+class C839 {}
+
+class C840 {}
+
+class C841 {}
+
+class C842 {}
+
+class C843 {}
+
+class C844 {}
+
+class C845 {}
+
+class C846 {}
+
+class C847 {}
+
+class C848 {}
+
+class C849 {}
+
+class C850 {}
+
+class C851 {}
+
+class C852 {}
+
+class C853 {}
+
+class C854 {}
+
+class C855 {}
+
+class C856 {}
+
+class C857 {}
+
+class C858 {}
+
+class C859 {}
+
+class C860 {}
+
+class C861 {}
+
+class C862 {}
+
+class C863 {}
+
+class C864 {}
+
+class C865 {}
+
+class C866 {}
+
+class C867 {}
+
+class C868 {}
+
+class C869 {}
+
+class C870 {}
+
+class C871 {}
+
+class C872 {}
+
+class C873 {}
+
+class C874 {}
+
+class C875 {}
+
+class C876 {}
+
+class C877 {}
+
+class C878 {}
+
+class C879 {}
+
+class C880 {}
+
+class C881 {}
+
+class C882 {}
+
+class C883 {}
+
+class C884 {}
+
+class C885 {}
+
+class C886 {}
+
+class C887 {}
+
+class C888 {}
+
+class C889 {}
+
+class C890 {}
+
+class C891 {}
+
+class C892 {}
+
+class C893 {}
+
+class C894 {}
+
+class C895 {}
+
+class C896 {}
+
+class C897 {}
+
+class C898 {}
+
+class C899 {}
+
+class C900 {}
+
+class C901 {}
+
+class C902 {}
+
+class C903 {}
+
+class C904 {}
+
+class C905 {}
+
+class C906 {}
+
+class C907 {}
+
+class C908 {}
+
+class C909 {}
+
+class C910 {}
+
+class C911 {}
+
+class C912 {}
+
+class C913 {}
+
+class C914 {}
+
+class C915 {}
+
+class C916 {}
+
+class C917 {}
+
+class C918 {}
+
+class C919 {}
+
+class C920 {}
+
+class C921 {}
+
+class C922 {}
+
+class C923 {}
+
+class C924 {}
+
+class C925 {}
+
+class C926 {}
+
+class C927 {}
+
+class C928 {}
+
+class C929 {}
+
+class C930 {}
+
+class C931 {}
+
+class C932 {}
+
+class C933 {}
+
+class C934 {}
+
+class C935 {}
+
+class C936 {}
+
+class C937 {}
+
+class C938 {}
+
+class C939 {}
+
+class C940 {}
+
+class C941 {}
+
+class C942 {}
+
+class C943 {}
+
+class C944 {}
+
+class C945 {}
+
+class C946 {}
+
+class C947 {}
+
+class C948 {}
+
+class C949 {}
+
+class C950 {}
+
+class C951 {}
+
+class C952 {}
+
+class C953 {}
+
+class C954 {}
+
+class C955 {}
+
+class C956 {}
+
+class C957 {}
+
+class C958 {}
+
+class C959 {}
+
+class C960 {}
+
+class C961 {}
+
+class C962 {}
+
+class C963 {}
+
+class C964 {}
+
+class C965 {}
+
+class C966 {}
+
+class C967 {}
+
+class C968 {}
+
+class C969 {}
+
+class C970 {}
+
+class C971 {}
+
+class C972 {}
+
+class C973 {}
+
+class C974 {}
+
+class C975 {}
+
+class C976 {}
+
+class C977 {}
+
+class C978 {}
+
+class C979 {}
+
+class C980 {}
+
+class C981 {}
+
+class C982 {}
+
+class C983 {}
+
+class C984 {}
+
+class C985 {}
+
+class C986 {}
+
+class C987 {}
+
+class C988 {}
+
+class C989 {}
+
+class C990 {}
+
+class C991 {}
+
+class C992 {}
+
+class C993 {}
+
+class C994 {}
+
+class C995 {}
+
+class C996 {}
+
+class C997 {}
+
+class C998 {}
+
+class C999 {}
+
+void instantiateMany() {
+  D.instantiate<C0>();
+  D.instantiate<C1>();
+  D.instantiate<C2>();
+  D.instantiate<C3>();
+  D.instantiate<C4>();
+  D.instantiate<C5>();
+  D.instantiate<C6>();
+  D.instantiate<C7>();
+  D.instantiate<C8>();
+  D.instantiate<C9>();
+  D.instantiate<C10>();
+  D.instantiate<C11>();
+  D.instantiate<C12>();
+  D.instantiate<C13>();
+  D.instantiate<C14>();
+  D.instantiate<C15>();
+  D.instantiate<C16>();
+  D.instantiate<C17>();
+  D.instantiate<C18>();
+  D.instantiate<C19>();
+  D.instantiate<C20>();
+  D.instantiate<C21>();
+  D.instantiate<C22>();
+  D.instantiate<C23>();
+  D.instantiate<C24>();
+  D.instantiate<C25>();
+  D.instantiate<C26>();
+  D.instantiate<C27>();
+  D.instantiate<C28>();
+  D.instantiate<C29>();
+  D.instantiate<C30>();
+  D.instantiate<C31>();
+  D.instantiate<C32>();
+  D.instantiate<C33>();
+  D.instantiate<C34>();
+  D.instantiate<C35>();
+  D.instantiate<C36>();
+  D.instantiate<C37>();
+  D.instantiate<C38>();
+  D.instantiate<C39>();
+  D.instantiate<C40>();
+  D.instantiate<C41>();
+  D.instantiate<C42>();
+  D.instantiate<C43>();
+  D.instantiate<C44>();
+  D.instantiate<C45>();
+  D.instantiate<C46>();
+  D.instantiate<C47>();
+  D.instantiate<C48>();
+  D.instantiate<C49>();
+  D.instantiate<C50>();
+  D.instantiate<C51>();
+  D.instantiate<C52>();
+  D.instantiate<C53>();
+  D.instantiate<C54>();
+  D.instantiate<C55>();
+  D.instantiate<C56>();
+  D.instantiate<C57>();
+  D.instantiate<C58>();
+  D.instantiate<C59>();
+  D.instantiate<C60>();
+  D.instantiate<C61>();
+  D.instantiate<C62>();
+  D.instantiate<C63>();
+  D.instantiate<C64>();
+  D.instantiate<C65>();
+  D.instantiate<C66>();
+  D.instantiate<C67>();
+  D.instantiate<C68>();
+  D.instantiate<C69>();
+  D.instantiate<C70>();
+  D.instantiate<C71>();
+  D.instantiate<C72>();
+  D.instantiate<C73>();
+  D.instantiate<C74>();
+  D.instantiate<C75>();
+  D.instantiate<C76>();
+  D.instantiate<C77>();
+  D.instantiate<C78>();
+  D.instantiate<C79>();
+  D.instantiate<C80>();
+  D.instantiate<C81>();
+  D.instantiate<C82>();
+  D.instantiate<C83>();
+  D.instantiate<C84>();
+  D.instantiate<C85>();
+  D.instantiate<C86>();
+  D.instantiate<C87>();
+  D.instantiate<C88>();
+  D.instantiate<C89>();
+  D.instantiate<C90>();
+  D.instantiate<C91>();
+  D.instantiate<C92>();
+  D.instantiate<C93>();
+  D.instantiate<C94>();
+  D.instantiate<C95>();
+  D.instantiate<C96>();
+  D.instantiate<C97>();
+  D.instantiate<C98>();
+  D.instantiate<C99>();
+  D.instantiate<C100>();
+  D.instantiate<C101>();
+  D.instantiate<C102>();
+  D.instantiate<C103>();
+  D.instantiate<C104>();
+  D.instantiate<C105>();
+  D.instantiate<C106>();
+  D.instantiate<C107>();
+  D.instantiate<C108>();
+  D.instantiate<C109>();
+  D.instantiate<C110>();
+  D.instantiate<C111>();
+  D.instantiate<C112>();
+  D.instantiate<C113>();
+  D.instantiate<C114>();
+  D.instantiate<C115>();
+  D.instantiate<C116>();
+  D.instantiate<C117>();
+  D.instantiate<C118>();
+  D.instantiate<C119>();
+  D.instantiate<C120>();
+  D.instantiate<C121>();
+  D.instantiate<C122>();
+  D.instantiate<C123>();
+  D.instantiate<C124>();
+  D.instantiate<C125>();
+  D.instantiate<C126>();
+  D.instantiate<C127>();
+  D.instantiate<C128>();
+  D.instantiate<C129>();
+  D.instantiate<C130>();
+  D.instantiate<C131>();
+  D.instantiate<C132>();
+  D.instantiate<C133>();
+  D.instantiate<C134>();
+  D.instantiate<C135>();
+  D.instantiate<C136>();
+  D.instantiate<C137>();
+  D.instantiate<C138>();
+  D.instantiate<C139>();
+  D.instantiate<C140>();
+  D.instantiate<C141>();
+  D.instantiate<C142>();
+  D.instantiate<C143>();
+  D.instantiate<C144>();
+  D.instantiate<C145>();
+  D.instantiate<C146>();
+  D.instantiate<C147>();
+  D.instantiate<C148>();
+  D.instantiate<C149>();
+  D.instantiate<C150>();
+  D.instantiate<C151>();
+  D.instantiate<C152>();
+  D.instantiate<C153>();
+  D.instantiate<C154>();
+  D.instantiate<C155>();
+  D.instantiate<C156>();
+  D.instantiate<C157>();
+  D.instantiate<C158>();
+  D.instantiate<C159>();
+  D.instantiate<C160>();
+  D.instantiate<C161>();
+  D.instantiate<C162>();
+  D.instantiate<C163>();
+  D.instantiate<C164>();
+  D.instantiate<C165>();
+  D.instantiate<C166>();
+  D.instantiate<C167>();
+  D.instantiate<C168>();
+  D.instantiate<C169>();
+  D.instantiate<C170>();
+  D.instantiate<C171>();
+  D.instantiate<C172>();
+  D.instantiate<C173>();
+  D.instantiate<C174>();
+  D.instantiate<C175>();
+  D.instantiate<C176>();
+  D.instantiate<C177>();
+  D.instantiate<C178>();
+  D.instantiate<C179>();
+  D.instantiate<C180>();
+  D.instantiate<C181>();
+  D.instantiate<C182>();
+  D.instantiate<C183>();
+  D.instantiate<C184>();
+  D.instantiate<C185>();
+  D.instantiate<C186>();
+  D.instantiate<C187>();
+  D.instantiate<C188>();
+  D.instantiate<C189>();
+  D.instantiate<C190>();
+  D.instantiate<C191>();
+  D.instantiate<C192>();
+  D.instantiate<C193>();
+  D.instantiate<C194>();
+  D.instantiate<C195>();
+  D.instantiate<C196>();
+  D.instantiate<C197>();
+  D.instantiate<C198>();
+  D.instantiate<C199>();
+  D.instantiate<C200>();
+  D.instantiate<C201>();
+  D.instantiate<C202>();
+  D.instantiate<C203>();
+  D.instantiate<C204>();
+  D.instantiate<C205>();
+  D.instantiate<C206>();
+  D.instantiate<C207>();
+  D.instantiate<C208>();
+  D.instantiate<C209>();
+  D.instantiate<C210>();
+  D.instantiate<C211>();
+  D.instantiate<C212>();
+  D.instantiate<C213>();
+  D.instantiate<C214>();
+  D.instantiate<C215>();
+  D.instantiate<C216>();
+  D.instantiate<C217>();
+  D.instantiate<C218>();
+  D.instantiate<C219>();
+  D.instantiate<C220>();
+  D.instantiate<C221>();
+  D.instantiate<C222>();
+  D.instantiate<C223>();
+  D.instantiate<C224>();
+  D.instantiate<C225>();
+  D.instantiate<C226>();
+  D.instantiate<C227>();
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+  D.instantiate<C900>();
+  D.instantiate<C901>();
+  D.instantiate<C902>();
+  D.instantiate<C903>();
+  D.instantiate<C904>();
+  D.instantiate<C905>();
+  D.instantiate<C906>();
+  D.instantiate<C907>();
+  D.instantiate<C908>();
+  D.instantiate<C909>();
+  D.instantiate<C910>();
+  D.instantiate<C911>();
+  D.instantiate<C912>();
+  D.instantiate<C913>();
+  D.instantiate<C914>();
+  D.instantiate<C915>();
+  D.instantiate<C916>();
+  D.instantiate<C917>();
+  D.instantiate<C918>();
+  D.instantiate<C919>();
+  D.instantiate<C920>();
+  D.instantiate<C921>();
+  D.instantiate<C922>();
+  D.instantiate<C923>();
+  D.instantiate<C924>();
+  D.instantiate<C925>();
+  D.instantiate<C926>();
+  D.instantiate<C927>();
+  D.instantiate<C928>();
+  D.instantiate<C929>();
+  D.instantiate<C930>();
+  D.instantiate<C931>();
+  D.instantiate<C932>();
+  D.instantiate<C933>();
+  D.instantiate<C934>();
+  D.instantiate<C935>();
+  D.instantiate<C936>();
+  D.instantiate<C937>();
+  D.instantiate<C938>();
+  D.instantiate<C939>();
+  D.instantiate<C940>();
+  D.instantiate<C941>();
+  D.instantiate<C942>();
+  D.instantiate<C943>();
+  D.instantiate<C944>();
+  D.instantiate<C945>();
+  D.instantiate<C946>();
+  D.instantiate<C947>();
+  D.instantiate<C948>();
+  D.instantiate<C949>();
+  D.instantiate<C950>();
+  D.instantiate<C951>();
+  D.instantiate<C952>();
+  D.instantiate<C953>();
+  D.instantiate<C954>();
+  D.instantiate<C955>();
+  D.instantiate<C956>();
+  D.instantiate<C957>();
+  D.instantiate<C958>();
+  D.instantiate<C959>();
+  D.instantiate<C960>();
+  D.instantiate<C961>();
+  D.instantiate<C962>();
+  D.instantiate<C963>();
+  D.instantiate<C964>();
+  D.instantiate<C965>();
+  D.instantiate<C966>();
+  D.instantiate<C967>();
+  D.instantiate<C968>();
+  D.instantiate<C969>();
+  D.instantiate<C970>();
+  D.instantiate<C971>();
+  D.instantiate<C972>();
+  D.instantiate<C973>();
+  D.instantiate<C974>();
+  D.instantiate<C975>();
+  D.instantiate<C976>();
+  D.instantiate<C977>();
+  D.instantiate<C978>();
+  D.instantiate<C979>();
+  D.instantiate<C980>();
+  D.instantiate<C981>();
+  D.instantiate<C982>();
+  D.instantiate<C983>();
+  D.instantiate<C984>();
+  D.instantiate<C985>();
+  D.instantiate<C986>();
+  D.instantiate<C987>();
+  D.instantiate<C988>();
+  D.instantiate<C989>();
+  D.instantiate<C990>();
+  D.instantiate<C991>();
+  D.instantiate<C992>();
+  D.instantiate<C993>();
+  D.instantiate<C994>();
+  D.instantiate<C995>();
+  D.instantiate<C996>();
+  D.instantiate<C997>();
+  D.instantiate<C998>();
+  D.instantiate<C999>();
+}
diff --git a/benchmarks/InstantiateTypeArgs/generate.dart b/benchmarks/InstantiateTypeArgs/generate.dart
new file mode 100644
index 0000000..b934d96
--- /dev/null
+++ b/benchmarks/InstantiateTypeArgs/generate.dart
@@ -0,0 +1,179 @@
+// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+//
+// Generates both the dart and dart2 version of this benchmark.
+
+import 'dart:io';
+
+import 'package:path/path.dart' as path;
+
+const String benchmarkName = 'InstantiateTypeArgs';
+
+/// How many classes/calls to create for the InstantiateOnce and
+/// RepeatInstantiateOnce benchmarks.
+const int instantiateOnceCount = 1000;
+
+/// How many classes/calls to create for the InstantiateMany and
+/// RepeatInstantiateMany benchmarks.
+const int instantiateManyCount = 1000;
+
+void generateBenchmarkClassesAndUtilities(IOSink output, {required bool nnbd}) {
+  output.writeln('''
+// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+//
+// This benchmark suite measures the overhead of instantiating type arguments,
+// with a particular aim of measuring the overhead of the caching mechanism.
+''');
+
+  if (!nnbd) {
+    output.writeln('''
+// @dart=2.9"
+''');
+  }
+
+  output.writeln('''
+import 'package:benchmark_harness/benchmark_harness.dart';
+
+void main() {
+  // Instantiates a series of types, each type instantiated with a single type.
+  const InstantiateOnce().report();
+  // Repeats the instantiations in InstantiateOnce, this time depending
+  // on the now-filled caches.
+  const RepeatInstantiateOnce().report();
+  // Instantiates a single type many times, each type being a new instantiation.
+  const InstantiateMany().report();
+  // Repeats the instantiations in InstantiateMany, this time depending on the
+  // now-filled cache.
+  const RepeatInstantiateMany().report();
+}
+
+class InstantiateOnce extends BenchmarkBase {
+  const InstantiateOnce() : super('$benchmarkName.InstantiateOnce');
+
+  // Only call run once, else the remaining runs will have the cached types.
+  @override
+  void exercise() => run();
+
+  @override
+  void run() {
+    instantiateOnce<B>();
+  }
+}
+
+class RepeatInstantiateOnce extends BenchmarkBase {
+  const RepeatInstantiateOnce()
+      : super('$benchmarkName.RepeatInstantiateOnce');
+
+  @override
+  void setup() {
+    // Run once to make sure the instantiations are cached, in case this
+    // benchmark is run on its own.
+    instantiateOnce<B>();
+  }
+
+  // Only call run once, so this is directly comparable to InstantiateOnce.
+  @override
+  void exercise() => run();
+
+  @override
+  void run() {
+    instantiateOnce<B>();
+  }
+}
+
+class InstantiateMany extends BenchmarkBase {
+  const InstantiateMany() : super('$benchmarkName.InstantiateMany');
+
+  // Only call run once, else the remaining runs will have the cached types.
+  @override
+  void exercise() => run();
+
+  @override
+  void run() {
+    instantiateMany();
+  }
+}
+
+class RepeatInstantiateMany extends BenchmarkBase {
+  const RepeatInstantiateMany()
+      : super('$benchmarkName.RepeatInstantiateMany');
+
+  @override
+  void setup() {
+    // Run once to make sure the instantiations are cached, in case this
+    // benchmark is run on its own.
+    instantiateMany();
+  }
+
+  // Only call run once, so this is directly comparable to InstantiateMany.
+  @override
+  void exercise() => run();
+
+  @override
+  void run() {
+    instantiateMany();
+  }
+}
+
+@pragma('vm:never-inline')
+void blackhole<T>() => null;
+
+class B {}
+
+class D<T> {
+  @pragma('vm:never-inline')
+  static void instantiate<T>() => blackhole<D<T>>();
+}
+''');
+}
+
+void generateInstantiateOnce(IOSink output) {
+  for (int i = 0; i < instantiateOnceCount; i++) {
+    output
+      ..writeln('class A${i}<T> {}')
+      ..writeln('');
+  }
+
+  output.writeln('void instantiateOnce<T>() {');
+  for (int i = 0; i < instantiateOnceCount; i++) {
+    output.writeln('  blackhole<A${i}<T>>();');
+  }
+  output
+    ..writeln('}')
+    ..writeln('');
+}
+
+void generateInstantiateMany(IOSink output) {
+  for (int i = 0; i < instantiateManyCount; i++) {
+    output
+      ..writeln('class C${i} {}')
+      ..writeln('');
+  }
+
+  output.writeln('void instantiateMany() {');
+  for (int i = 0; i < instantiateOnceCount; i++) {
+    output.writeln('  D.instantiate<C${i}>();');
+  }
+  output.writeln('}');
+}
+
+void main() {
+  final dartFilePath = path.join(
+      path.dirname(Platform.script.path), 'dart', '$benchmarkName.dart');
+  final dartSink = File(dartFilePath).openWrite();
+  generateBenchmarkClassesAndUtilities(dartSink, nnbd: true);
+  generateInstantiateOnce(dartSink);
+  generateInstantiateMany(dartSink);
+  dartSink..flush();
+
+  final dart2FilePath = path.join(
+      path.dirname(Platform.script.path), 'dart2', '$benchmarkName.dart');
+  final dart2Sink = File(dart2FilePath).openWrite();
+  generateBenchmarkClassesAndUtilities(dart2Sink, nnbd: false);
+  generateInstantiateOnce(dart2Sink);
+  generateInstantiateMany(dart2Sink);
+  dart2Sink..flush();
+}
diff --git a/pkg/_fe_analyzer_shared/pubspec.yaml b/pkg/_fe_analyzer_shared/pubspec.yaml
index 9a47861..4465d4d 100644
--- a/pkg/_fe_analyzer_shared/pubspec.yaml
+++ b/pkg/_fe_analyzer_shared/pubspec.yaml
@@ -1,5 +1,5 @@
 name: _fe_analyzer_shared
-version: 42.0.0
+version: 43.0.0
 description: Logic that is shared between the front_end and analyzer packages.
 repository: https://github.com/dart-lang/sdk/tree/main/pkg/_fe_analyzer_shared
 
diff --git a/pkg/analysis_server/lib/src/computer/computer_outline.dart b/pkg/analysis_server/lib/src/computer/computer_outline.dart
index 28b0ad5..b0140fd 100644
--- a/pkg/analysis_server/lib/src/computer/computer_outline.dart
+++ b/pkg/analysis_server/lib/src/computer/computer_outline.dart
@@ -99,7 +99,7 @@
         Element.makeFlags(
             isPrivate: Identifier.isPrivateName(name),
             isDeprecated: _isDeprecated(node),
-            isAbstract: node.isAbstract),
+            isAbstract: node.abstractKeyword != null),
         location: _getLocationNode(nameNode),
         typeParameters: _getTypeParametersStr(node.typeParameters));
     return _nodeOutline(node, element, classContents);
@@ -114,7 +114,7 @@
         Element.makeFlags(
             isPrivate: Identifier.isPrivateName(name),
             isDeprecated: _isDeprecated(node),
-            isAbstract: node.isAbstract),
+            isAbstract: node.abstractKeyword != null),
         location: _getLocationNode(nameNode),
         typeParameters: _getTypeParametersStr(node.typeParameters));
     return _nodeOutline(node, element);
diff --git a/pkg/analysis_server/lib/src/services/correction/error_fix_status.yaml b/pkg/analysis_server/lib/src/services/correction/error_fix_status.yaml
index 00fc90a..d110b08 100644
--- a/pkg/analysis_server/lib/src/services/correction/error_fix_status.yaml
+++ b/pkg/analysis_server/lib/src/services/correction/error_fix_status.yaml
@@ -1356,6 +1356,12 @@
 HintCode.INVALID_VISIBLE_FOR_OVERRIDING_ANNOTATION:
   status: needsFix
   since: ~2.15
+HintCode.MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_ONE:
+  status: needsEvaluation
+HintCode.MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_TWO:
+  status: needsEvaluation
+HintCode.MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_THREE_PLUS:
+  status: needsEvaluation
 HintCode.MISSING_REQUIRED_PARAM:
   status: hasFix
 HintCode.MISSING_REQUIRED_PARAM_WITH_DETAILS:
diff --git a/pkg/analyzer/CHANGELOG.md b/pkg/analyzer/CHANGELOG.md
index ba6892e..f3b6f02 100644
--- a/pkg/analyzer/CHANGELOG.md
+++ b/pkg/analyzer/CHANGELOG.md
@@ -1,3 +1,10 @@
+## 4.4.0-dev
+* Deprecated `ClassDeclaration.isAbstract`, use `abstractKeyword` instead.
+* Deprecated `ClassTypeAlias.isAbstract`, use `abstractKeyword` instead.
+
+## 4.3.1
+* Fix `identifier` for `LibraryExportElement` and `LibraryImportElement`.
+
 ## 4.3.0
 * Deprecated `Directive.keyword`, use corresponding `xyzToken` in specific directives.
 * Deprecated `LibraryElement.parts`, use `parts2` instead.
diff --git a/pkg/analyzer/lib/dart/ast/ast.dart b/pkg/analyzer/lib/dart/ast/ast.dart
index 0e7ef20..124034e 100644
--- a/pkg/analyzer/lib/dart/ast/ast.dart
+++ b/pkg/analyzer/lib/dart/ast/ast.dart
@@ -844,6 +844,7 @@
   ExtendsClause? get extendsClause;
 
   /// Return `true` if this class is declared to be an abstract class.
+  @Deprecated('Use abstractKeyword instead')
   bool get isAbstract;
 
   /// Return the native clause for this class, or `null` if the class does not
@@ -931,6 +932,7 @@
   ImplementsClause? get implementsClause;
 
   /// Return `true` if this class is declared to be an abstract class.
+  @Deprecated('Use abstractKeyword instead')
   bool get isAbstract;
 
   @override
diff --git a/pkg/analyzer/lib/dart/element/element.dart b/pkg/analyzer/lib/dart/element/element.dart
index 17ed8d6..2555f6d 100644
--- a/pkg/analyzer/lib/dart/element/element.dart
+++ b/pkg/analyzer/lib/dart/element/element.dart
@@ -674,10 +674,15 @@
   /// Return `true` if this element has an annotation of the form `@literal`.
   bool get hasLiteral;
 
-  /// Return  `true` if this element has an annotation of the form `@mustCallSuper`.
+  /// Return `true` if this element has an annotation of the form
+  /// `@mustBeOverridden`.
+  bool get hasMustBeOverridden;
+
+  /// Return `true` if this element has an annotation of the form
+  /// `@mustCallSuper`.
   bool get hasMustCallSuper;
 
-  /// Return  `true` if this element has an annotation of the form `@nonVirtual`.
+  /// Return `true` if this element has an annotation of the form `@nonVirtual`.
   bool get hasNonVirtual;
 
   /// Return `true` if this element has an annotation of the form
@@ -902,6 +907,10 @@
   bool get isLiteral;
 
   /// Return `true` if this annotation marks the associated member as requiring
+  /// subclasses to override this member.
+  bool get isMustBeOverridden;
+
+  /// Return `true` if this annotation marks the associated member as requiring
   /// overriding methods to call super.
   bool get isMustCallSuper;
 
diff --git a/pkg/analyzer/lib/error/error.dart b/pkg/analyzer/lib/error/error.dart
index 0ec336d..d02d609 100644
--- a/pkg/analyzer/lib/error/error.dart
+++ b/pkg/analyzer/lib/error/error.dart
@@ -613,6 +613,9 @@
   HintCode.INVALID_USE_OF_VISIBLE_FOR_TESTING_MEMBER,
   HintCode.INVALID_VISIBILITY_ANNOTATION,
   HintCode.INVALID_VISIBLE_FOR_OVERRIDING_ANNOTATION,
+  HintCode.MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_ONE,
+  HintCode.MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_TWO,
+  HintCode.MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_THREE_PLUS,
   HintCode.MISSING_REQUIRED_PARAM,
   HintCode.MISSING_REQUIRED_PARAM_WITH_DETAILS,
   HintCode.MISSING_RETURN,
diff --git a/pkg/analyzer/lib/src/dart/ast/ast.dart b/pkg/analyzer/lib/src/dart/ast/ast.dart
index e8b91a4..3f9b7dd 100644
--- a/pkg/analyzer/lib/src/dart/ast/ast.dart
+++ b/pkg/analyzer/lib/src/dart/ast/ast.dart
@@ -1662,6 +1662,7 @@
     return abstractKeyword ?? macroKeyword ?? augmentKeyword ?? classKeyword;
   }
 
+  @Deprecated('Use abstractKeyword instead')
   @override
   bool get isAbstract => abstractKeyword != null;
 
@@ -1914,6 +1915,7 @@
         _becomeParentOf(implementsClause as ImplementsClauseImpl?);
   }
 
+  @Deprecated('Use abstractKeyword instead')
   @override
   bool get isAbstract => abstractKeyword != null;
 
@@ -2052,8 +2054,9 @@
   NodeListImpl<CommentReference> get references => _references;
 
   @override
-  ChildEntities get _childEntities =>
-      ChildEntities()..addTokenList('tokens', tokens);
+  ChildEntities get _childEntities => ChildEntities()
+    ..addNodeList('references', references)
+    ..addTokenList('tokens', tokens);
 
   @override
   E? accept<E>(AstVisitor<E> visitor) => visitor.visitComment(this);
diff --git a/pkg/analyzer/lib/src/dart/element/element.dart b/pkg/analyzer/lib/src/dart/element/element.dart
index 2f13dee..af9564a 100644
--- a/pkg/analyzer/lib/src/dart/element/element.dart
+++ b/pkg/analyzer/lib/src/dart/element/element.dart
@@ -1861,6 +1861,10 @@
   static const String _META_META_LIB_NAME = "meta_meta";
 
   /// The name of the top-level variable used to mark a method as requiring
+  /// subclasses to override this method.
+  static const String _MUST_BE_OVERRIDDEN = "mustBeOverridden";
+
+  /// The name of the top-level variable used to mark a method as requiring
   /// overriders to call super.
   static const String _MUST_CALL_SUPER_VARIABLE_NAME = "mustCallSuper";
 
@@ -1988,6 +1992,9 @@
   bool get isLiteral => _isPackageMetaGetter(_LITERAL_VARIABLE_NAME);
 
   @override
+  bool get isMustBeOverridden => _isPackageMetaGetter(_MUST_BE_OVERRIDDEN);
+
+  @override
   bool get isMustCallSuper =>
       _isPackageMetaGetter(_MUST_CALL_SUPER_VARIABLE_NAME);
 
@@ -2322,6 +2329,18 @@
   }
 
   @override
+  bool get hasMustBeOverridden {
+    final metadata = this.metadata;
+    for (var i = 0; i < metadata.length; i++) {
+      var annotation = metadata[i];
+      if (annotation.isMustBeOverridden) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  @override
   bool get hasMustCallSuper {
     final metadata = this.metadata;
     for (var i = 0; i < metadata.length; i++) {
@@ -4425,6 +4444,9 @@
   int get hashCode => identityHashCode(this);
 
   @override
+  String get identifier => 'export@$nameOffset';
+
+  @override
   ElementKind get kind => ElementKind.EXPORT;
 
   @override
@@ -4470,6 +4492,9 @@
   int get hashCode => identityHashCode(this);
 
   @override
+  String get identifier => 'import@$nameOffset';
+
+  @override
   LibraryElement? get importedLibrary {
     final uri = this.uri;
     if (uri is DirectiveUriWithLibrary) {
@@ -5038,6 +5063,9 @@
   bool get hasLiteral => false;
 
   @override
+  bool get hasMustBeOverridden => false;
+
+  @override
   bool get hasMustCallSuper => false;
 
   @override
diff --git a/pkg/analyzer/lib/src/dart/element/member.dart b/pkg/analyzer/lib/src/dart/element/member.dart
index a9e7282..28785d5 100644
--- a/pkg/analyzer/lib/src/dart/element/member.dart
+++ b/pkg/analyzer/lib/src/dart/element/member.dart
@@ -528,6 +528,9 @@
   bool get hasLiteral => _declaration.hasLiteral;
 
   @override
+  bool get hasMustBeOverridden => _declaration.hasMustBeOverridden;
+
+  @override
   bool get hasMustCallSuper => _declaration.hasMustCallSuper;
 
   @override
diff --git a/pkg/analyzer/lib/src/dart/error/hint_codes.g.dart b/pkg/analyzer/lib/src/dart/error/hint_codes.g.dart
index ac3e9d6..82d4c91 100644
--- a/pkg/analyzer/lib/src/dart/error/hint_codes.g.dart
+++ b/pkg/analyzer/lib/src/dart/error/hint_codes.g.dart
@@ -680,6 +680,37 @@
     hasPublishedDocs: true,
   );
 
+  ///  Parameters:
+  ///  0: the name of the member
+  static const HintCode MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_ONE = HintCode(
+    'MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN',
+    "Missing concrete override implementation of '{0}'.",
+    correctionMessage: "Try overriding the missing member.",
+    uniqueName: 'MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_ONE',
+  );
+
+  ///  Parameters:
+  ///  0: the name of the first member
+  ///  1: the name of the second member
+  ///  2: the number of additional missing members that aren't listed
+  static const HintCode MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_THREE_PLUS =
+      HintCode(
+    'MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN',
+    "Missing concrete override implementation of '{0}', '{1}', and {2} more.",
+    correctionMessage: "Try overriding the missing members.",
+    uniqueName: 'MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_THREE_PLUS',
+  );
+
+  ///  Parameters:
+  ///  0: the name of the first member
+  ///  1: the name of the second member
+  static const HintCode MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_TWO = HintCode(
+    'MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN',
+    "Missing concrete override implementation of '{0}' and '{1}'.",
+    correctionMessage: "Try overriding the missing members.",
+    uniqueName: 'MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_TWO',
+  );
+
   ///  Generate a hint for a constructor, function or method invocation where a
   ///  required parameter is missing.
   ///
diff --git a/pkg/analyzer/lib/src/error/best_practices_verifier.dart b/pkg/analyzer/lib/src/error/best_practices_verifier.dart
index 5ec9188..cd17032 100644
--- a/pkg/analyzer/lib/src/error/best_practices_verifier.dart
+++ b/pkg/analyzer/lib/src/error/best_practices_verifier.dart
@@ -140,14 +140,14 @@
       return;
     }
     AstNode parent = node.parent;
-    if (element.isFactory == true) {
+    if (element.isFactory) {
       if (parent is MethodDeclaration) {
         _checkForInvalidFactory(parent);
       } else {
         _errorReporter
             .reportErrorForNode(HintCode.INVALID_FACTORY_ANNOTATION, node, []);
       }
-    } else if (element.isImmutable == true) {
+    } else if (element.isImmutable) {
       if (parent is! ClassOrMixinDeclaration && parent is! ClassTypeAlias) {
         _errorReporter.reportErrorForNode(
             HintCode.INVALID_IMMUTABLE_ANNOTATION, node, []);
@@ -183,12 +183,28 @@
         _errorReporter
             .reportErrorForNode(HintCode.INVALID_INTERNAL_ANNOTATION, node, []);
       }
-    } else if (element.isLiteral == true) {
+    } else if (element.isLiteral) {
       if (parent is! ConstructorDeclaration || parent.constKeyword == null) {
         _errorReporter
             .reportErrorForNode(HintCode.INVALID_LITERAL_ANNOTATION, node, []);
       }
-    } else if (element.isNonVirtual == true) {
+    } else if (element.isMustBeOverridden) {
+      if ((parent is MethodDeclaration && parent.isStatic) ||
+          (parent is FieldDeclaration && parent.isStatic)) {
+        _errorReporter.reportErrorForNode(
+          HintCode.INVALID_ANNOTATION_TARGET,
+          node,
+          [node.name.name, 'instance members of classes and mixins'],
+        );
+      } else if (parent.parent is ExtensionDeclaration ||
+          parent.parent is EnumDeclaration) {
+        _errorReporter.reportErrorForNode(
+          HintCode.INVALID_ANNOTATION_TARGET,
+          node,
+          [node.name.name, 'instance members of classes and mixins'],
+        );
+      }
+    } else if (element.isNonVirtual) {
       if (parent is FieldDeclaration) {
         if (parent.isStatic) {
           _errorReporter.reportErrorForNode(
@@ -205,14 +221,14 @@
         _errorReporter.reportErrorForNode(
             HintCode.INVALID_NON_VIRTUAL_ANNOTATION, node);
       }
-    } else if (element.isSealed == true) {
+    } else if (element.isSealed) {
       if (!(parent is ClassDeclaration || parent is ClassTypeAlias)) {
         _errorReporter.reportErrorForNode(
             HintCode.INVALID_SEALED_ANNOTATION, node);
       }
-    } else if (element.isVisibleForTemplate == true ||
-        element.isVisibleForTesting == true ||
-        element.isVisibleForOverriding == true) {
+    } else if (element.isVisibleForTemplate ||
+        element.isVisibleForTesting ||
+        element.isVisibleForOverriding) {
       if (parent is Declaration) {
         void reportInvalidAnnotation(Element declaredElement) {
           // This method is only called on named elements, so it is safe to
diff --git a/pkg/analyzer/lib/src/error/inheritance_override.dart b/pkg/analyzer/lib/src/error/inheritance_override.dart
index bd71971..89c04f9 100644
--- a/pkg/analyzer/lib/src/error/inheritance_override.dart
+++ b/pkg/analyzer/lib/src/error/inheritance_override.dart
@@ -34,8 +34,9 @@
   void verifyUnit(CompilationUnit unit) {
     var library = unit.declaredElement!.library as LibraryElementImpl;
     for (var declaration in unit.declarations) {
+      _ClassVerifier verifier;
       if (declaration is ClassDeclaration) {
-        _ClassVerifier(
+        verifier = _ClassVerifier(
           typeSystem: _typeSystem,
           typeProvider: _typeProvider,
           inheritance: _inheritance,
@@ -47,9 +48,9 @@
           members: declaration.members,
           superclass: declaration.extendsClause?.superclass,
           withClause: declaration.withClause,
-        ).verify();
+        );
       } else if (declaration is ClassTypeAlias) {
-        _ClassVerifier(
+        verifier = _ClassVerifier(
           typeSystem: _typeSystem,
           typeProvider: _typeProvider,
           inheritance: _inheritance,
@@ -60,9 +61,9 @@
           implementsClause: declaration.implementsClause,
           superclass: declaration.superclass,
           withClause: declaration.withClause,
-        ).verify();
+        );
       } else if (declaration is EnumDeclaration) {
-        _ClassVerifier(
+        verifier = _ClassVerifier(
           typeSystem: _typeSystem,
           typeProvider: _typeProvider,
           inheritance: _inheritance,
@@ -73,9 +74,9 @@
           implementsClause: declaration.implementsClause,
           members: declaration.members,
           withClause: declaration.withClause,
-        ).verify();
+        );
       } else if (declaration is MixinDeclaration) {
-        _ClassVerifier(
+        verifier = _ClassVerifier(
           typeSystem: _typeSystem,
           typeProvider: _typeProvider,
           inheritance: _inheritance,
@@ -86,8 +87,16 @@
           implementsClause: declaration.implementsClause,
           members: declaration.members,
           onClause: declaration.onClause,
-        ).verify();
+        );
+      } else {
+        continue;
       }
+
+      if (verifier.verify()) {
+        continue;
+      }
+
+      verifier._verifyMustBeOverridden();
     }
   }
 
@@ -139,9 +148,11 @@
 
   bool get _isNonNullableByDefault => typeSystem.isNonNullableByDefault;
 
-  void verify() {
+  /// Verify inheritance overrides, and return `true` if an error was
+  /// reported which should prevent follow on diagnostics from being reported.
+  bool verify() {
     if (_checkDirectSuperTypes()) {
-      return;
+      return true;
     }
 
     if (!classElement.isEnum &&
@@ -151,11 +162,11 @@
         CompileTimeErrorCode.CONCRETE_CLASS_HAS_ENUM_SUPERINTERFACE,
         classNameNode,
       );
-      return;
+      return true;
     }
 
     if (_checkForRecursiveInterfaceInheritance(classElement)) {
-      return;
+      return true;
     }
 
     // Compute the interface of the class.
@@ -188,7 +199,7 @@
 
     directSuperInterfaces.addAll(classElement.interfaces);
 
-    // Check the members if the class itself, against all the previously
+    // Check the members of the class itself, against all the previously
     // collected superinterfaces of the supertype, mixins, and interfaces.
     for (var member in members) {
       if (member is FieldDeclaration) {
@@ -289,6 +300,8 @@
 
       _reportInheritedAbstractMembers(inheritedAbstract);
     }
+
+    return false;
   }
 
   /// Check that the given [member] is a valid override of the corresponding
@@ -912,6 +925,90 @@
     return false;
   }
 
+  /// Verify that [classElement] complies with all `@mustBeOverridden`-annotated
+  /// members in all of its supertypes.
+  void _verifyMustBeOverridden() {
+    final noSuchMethodDeclaration =
+        classElement.getMethod(FunctionElement.NO_SUCH_METHOD_METHOD_NAME);
+    if (noSuchMethodDeclaration != null &&
+        !noSuchMethodDeclaration.isAbstract) {
+      return;
+    }
+    final notOverriddenNames = <String>{};
+    for (var supertype in classElement.allSupertypes) {
+      // TODO(srawlins): This looping may be expensive. Since the vast majority
+      // of classes will have zero elements annotated with `@mustBeOverridden`,
+      // we could store a bit on ClassElement (included in summaries) which
+      // denotes whether any declared element has been so annotated. Then the
+      // expensive looping is deferred until we have such a class.
+      for (var method in supertype.methods) {
+        if (method.isPrivate && method.library != classElement.library) {
+          continue;
+        }
+        if (method.isStatic) {
+          continue;
+        }
+        if (method.hasMustBeOverridden) {
+          var methodDeclaration = classElement.getMethod(method.name);
+          if (methodDeclaration == null || methodDeclaration.isAbstract) {
+            notOverriddenNames.add(method.name);
+          }
+        }
+      }
+      for (var accessor in supertype.accessors) {
+        if (accessor.isPrivate && accessor.library != classElement.library) {
+          continue;
+        }
+        if (accessor.isStatic) {
+          continue;
+        }
+        if (accessor.hasMustBeOverridden ||
+            accessor.variable.hasMustBeOverridden) {
+          final PropertyAccessorElement? accessorDeclaration;
+          if (accessor.isGetter) {
+            accessorDeclaration = classElement.getGetter(accessor.name);
+          } else if (accessor.isSetter) {
+            accessorDeclaration = classElement.getSetter(accessor.name);
+          } else {
+            continue;
+          }
+          if (accessorDeclaration == null || accessorDeclaration.isAbstract) {
+            notOverriddenNames.add(accessor.name);
+          }
+        }
+      }
+    }
+    if (notOverriddenNames.isEmpty) {
+      return;
+    }
+
+    final namesForError = notOverriddenNames.toList();
+
+    if (namesForError.length == 1) {
+      reporter.reportErrorForNode(
+        HintCode.MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_ONE,
+        classNameNode,
+        namesForError,
+      );
+    } else if (namesForError.length == 2) {
+      reporter.reportErrorForNode(
+        HintCode.MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_TWO,
+        classNameNode,
+        namesForError,
+      );
+    } else {
+      reporter.reportErrorForNode(
+        HintCode.MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_THREE_PLUS,
+        classNameNode,
+        [
+          namesForError[0],
+          namesForError[1],
+          (namesForError.length - 2).toString(),
+        ],
+      );
+    }
+  }
+
   static bool _constantValuesEqual(DartObject? x, DartObject? y) {
     // If either constant value couldn't be computed due to an error, the
     // corresponding DartObject will be `null`.  Since an error has already been
diff --git a/pkg/analyzer/lib/src/services/available_declarations.dart b/pkg/analyzer/lib/src/services/available_declarations.dart
index 7cefd00..8a744b5 100644
--- a/pkg/analyzer/lib/src/services/available_declarations.dart
+++ b/pkg/analyzer/lib/src/services/available_declarations.dart
@@ -1579,7 +1579,7 @@
 
       if (node is ClassDeclaration) {
         var classDeclaration = addDeclaration(
-          isAbstract: node.isAbstract,
+          isAbstract: node.abstractKeyword != null,
           isDeprecated: isDeprecated,
           kind: DeclarationKind.CLASS,
           name: node.name,
diff --git a/pkg/analyzer/lib/src/summary2/element_builder.dart b/pkg/analyzer/lib/src/summary2/element_builder.dart
index c037361..08a40f1 100644
--- a/pkg/analyzer/lib/src/summary2/element_builder.dart
+++ b/pkg/analyzer/lib/src/summary2/element_builder.dart
@@ -92,7 +92,7 @@
     var name = nameNode.name;
 
     var element = ClassElementImpl(name, nameNode.offset);
-    element.isAbstract = node.isAbstract;
+    element.isAbstract = node.abstractKeyword != null;
     element.isMacro = node.macroKeyword != null;
     element.metadata = _buildAnnotations(node.metadata);
     _setCodeRange(element, node);
@@ -125,7 +125,7 @@
     var name = nameNode.name;
 
     var element = ClassElementImpl(name, nameNode.offset);
-    element.isAbstract = node.isAbstract;
+    element.isAbstract = node.abstractKeyword != null;
     element.isMacro = node.macroKeyword != null;
     element.isMixinApplication = true;
     element.metadata = _buildAnnotations(node.metadata);
diff --git a/pkg/analyzer/lib/src/test_utilities/mock_packages.dart b/pkg/analyzer/lib/src/test_utilities/mock_packages.dart
index 5c68765..05d9022 100644
--- a/pkg/analyzer/lib/src/test_utilities/mock_packages.dart
+++ b/pkg/analyzer/lib/src/test_utilities/mock_packages.dart
@@ -74,6 +74,8 @@
 
 const _Literal literal = _Literal();
 
+const _MustBeOverridden mustBeOverridden = _MustBeOverridden();
+
 const _MustCallSuper mustCallSuper = _MustCallSuper();
 
 const _NonVirtual nonVirtual = _NonVirtual();
@@ -167,6 +169,16 @@
   const _Literal();
 }
 
+@Target({
+  TargetKind.field,
+  TargetKind.getter,
+  TargetKind.method,
+  TargetKind.setter,
+})
+class _MustBeOverridden {
+  const _MustBeOverridden();
+}
+
 class _MustCallSuper {
   const _MustCallSuper();
 }
diff --git a/pkg/analyzer/messages.yaml b/pkg/analyzer/messages.yaml
index b961513..01a38cd 100644
--- a/pkg/analyzer/messages.yaml
+++ b/pkg/analyzer/messages.yaml
@@ -19264,6 +19264,33 @@
       ```dart
       class C {}
       ```
+  MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_ONE:
+    sharedName: MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN
+    problemMessage: "Missing concrete override implementation of '{0}'."
+    correctionMessage: Try overriding the missing member.
+    hasPublishedDocs: false
+    comment: |-
+      Parameters:
+      0: the name of the member
+  MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_TWO:
+    sharedName: MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN
+    problemMessage: "Missing concrete override implementation of '{0}' and '{1}'."
+    correctionMessage: Try overriding the missing members.
+    hasPublishedDocs: false
+    comment: |-
+      Parameters:
+      0: the name of the first member
+      1: the name of the second member
+  MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_THREE_PLUS:
+    sharedName: MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN
+    problemMessage: "Missing concrete override implementation of '{0}', '{1}', and {2} more."
+    correctionMessage: Try overriding the missing members.
+    hasPublishedDocs: false
+    comment: |-
+      Parameters:
+      0: the name of the first member
+      1: the name of the second member
+      2: the number of additional missing members that aren't listed
   MISSING_REQUIRED_PARAM:
     problemMessage: "The parameter '{0}' is required."
     hasPublishedDocs: true
diff --git a/pkg/analyzer/pubspec.yaml b/pkg/analyzer/pubspec.yaml
index 6c3c45f..23f402a 100644
--- a/pkg/analyzer/pubspec.yaml
+++ b/pkg/analyzer/pubspec.yaml
@@ -1,5 +1,5 @@
 name: analyzer
-version: 4.3.0
+version: 4.4.0-dev
 description: This package provides a library that performs static analysis of Dart code.
 repository: https://github.com/dart-lang/sdk/tree/main/pkg/analyzer
 
@@ -7,7 +7,7 @@
   sdk: '>=2.17.0 <3.0.0'
 
 dependencies:
-  _fe_analyzer_shared: ^42.0.0
+  _fe_analyzer_shared: ^43.0.0
   collection: ^1.15.0
   convert: ^3.0.0
   crypto: ^3.0.0
diff --git a/pkg/analyzer/test/dart/ast/ast_test.dart b/pkg/analyzer/test/dart/ast/ast_test.dart
index b1e5cca..0962fbe 100644
--- a/pkg/analyzer/test/dart/ast/ast_test.dart
+++ b/pkg/analyzer/test/dart/ast/ast_test.dart
@@ -108,6 +108,7 @@
     expect(clazz.getMethod("noSuchMethod"), isNull);
   }
 
+  @Deprecated('Use abstractKeyword instead')
   void test_isAbstract() {
     expect(
         AstTestFactory.classDeclaration(null, "A", null, null, null, null)
@@ -123,6 +124,7 @@
 
 @reflectiveTest
 class ClassTypeAliasTest extends ParserTestCase {
+  @Deprecated('Use abstractKeyword instead')
   void test_isAbstract() {
     expect(
         AstTestFactory.classTypeAlias(
diff --git a/pkg/analyzer/test/generated/simple_parser_test.dart b/pkg/analyzer/test/generated/simple_parser_test.dart
index 64c7860..a8ba8f8 100644
--- a/pkg/analyzer/test/generated/simple_parser_test.dart
+++ b/pkg/analyzer/test/generated/simple_parser_test.dart
@@ -721,77 +721,6 @@
     expect(identifier.offset, 5);
   }
 
-  void test_parseCommentReferences_33738() {
-    CompilationUnit unit =
-        parseCompilationUnit('/** [String] */ abstract class Foo {}');
-    var clazz = unit.declarations[0] as ClassDeclaration;
-    Comment comment = clazz.documentationComment!;
-    expect(clazz.isAbstract, isTrue);
-    List<CommentReference> references = comment.references;
-    expect(references, hasLength(1));
-    CommentReference reference = references[0];
-    expect(reference, isNotNull);
-    expect(reference.expression, isNotNull);
-    expect(reference.offset, 5);
-  }
-
-  void test_parseCommentReferences_beforeAnnotation() {
-    CompilationUnit unit = parseCompilationUnit('''
-/// See [int] and [String]
-/// and [Object].
-@Annotation
-abstract class Foo {}
-''');
-    var clazz = unit.declarations[0] as ClassDeclaration;
-    Comment comment = clazz.documentationComment!;
-    expect(clazz.isAbstract, isTrue);
-    List<CommentReference> references = comment.references;
-    expect(references, hasLength(3));
-
-    expectReference(int index, String expectedText, int expectedOffset) {
-      CommentReference reference = references[index];
-      var identifier = reference.expression as Identifier;
-      expect(identifier.name, expectedText);
-      expect(reference.offset, expectedOffset);
-    }
-
-    expectReference(0, 'int', 9);
-    expectReference(1, 'String', 19);
-    expectReference(2, 'Object', 36);
-  }
-
-  void test_parseCommentReferences_complex() {
-    CompilationUnit unit = parseCompilationUnit('''
-/// This dartdoc comment [should] be ignored
-@Annotation
-/// This dartdoc comment is [included].
-// a non dartdoc comment [inbetween]
-/// See [int] and [String] but `not [a]`
-/// ```
-/// This [code] block should be ignored
-/// ```
-/// and [Object].
-abstract class Foo {}
-''');
-    var clazz = unit.declarations[0] as ClassDeclaration;
-    Comment comment = clazz.documentationComment!;
-    expect(clazz.isAbstract, isTrue);
-    List<CommentReference> references = comment.references;
-    expect(references, hasLength(4));
-
-    expectReference(int index, String expectedText, int expectedOffset) {
-      CommentReference reference = references[index];
-      var identifier = reference.expression as Identifier;
-      expect(identifier.name, expectedText);
-      expect(reference.offset, expectedOffset);
-    }
-
-    expectReference(0, 'included', 86);
-    expectReference(1, 'int', 143);
-    expectReference(2, 'String', 153);
-    expectReference(3, 'Object', 240);
-  }
-
   void test_parseCommentReferences_multiLine() {
     DocumentationCommentToken token = DocumentationCommentToken(
         TokenType.MULTI_LINE_COMMENT, "/** xxx [a] yyy [bb] zzz */", 3);
diff --git a/pkg/analyzer/test/src/diagnostics/invalid_annotation_target_test.dart b/pkg/analyzer/test/src/diagnostics/invalid_annotation_target_test.dart
index 9d8b897..dd7c738 100644
--- a/pkg/analyzer/test/src/diagnostics/invalid_annotation_target_test.dart
+++ b/pkg/analyzer/test/src/diagnostics/invalid_annotation_target_test.dart
@@ -9,11 +9,176 @@
 
 main() {
   defineReflectiveSuite(() {
+    defineReflectiveTests(InvalidAnnotationTarget_MustBeOverriddenTest);
     defineReflectiveTests(InvalidAnnotationTargetTest);
   });
 }
 
 @reflectiveTest
+class InvalidAnnotationTarget_MustBeOverriddenTest
+    extends PubPackageResolutionTest {
+  @override
+  void setUp() {
+    super.setUp();
+    writeTestPackageConfigWithMeta();
+  }
+
+  test_class_instance_field() async {
+    await assertNoErrorsInCode(r'''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  int f = 0;
+}
+''');
+  }
+
+  test_class_instance_getter() async {
+    await assertNoErrorsInCode(r'''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  int get f => 0;
+}
+''');
+  }
+
+  test_class_instance_method() async {
+    await assertNoErrorsInCode(r'''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  void m() {}
+}
+''');
+  }
+
+  test_class_instance_setter() async {
+    await assertNoErrorsInCode(r'''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  void set s(int value) {}
+}
+''');
+  }
+
+  test_class_static_field() async {
+    await assertErrorsInCode(r'''
+import 'package:meta/meta.dart';
+class A {
+  @mustBeOverridden
+  static int f = 0;
+}
+''', [
+      error(HintCode.INVALID_ANNOTATION_TARGET, 45, 17),
+    ]);
+  }
+
+  test_class_static_getter() async {
+    await assertErrorsInCode(r'''
+import 'package:meta/meta.dart';
+class A {
+  @mustBeOverridden
+  static int get f => 0;
+}
+''', [
+      error(HintCode.INVALID_ANNOTATION_TARGET, 45, 17),
+    ]);
+  }
+
+  test_class_static_method() async {
+    await assertErrorsInCode(r'''
+import 'package:meta/meta.dart';
+class A {
+  @mustBeOverridden
+  static void m() {}
+}
+''', [
+      error(HintCode.INVALID_ANNOTATION_TARGET, 45, 17),
+    ]);
+  }
+
+  test_class_static_setter() async {
+    await assertErrorsInCode(r'''
+import 'package:meta/meta.dart';
+class A {
+  @mustBeOverridden
+  static void set f(int value) {}
+}
+''', [
+      error(HintCode.INVALID_ANNOTATION_TARGET, 45, 17),
+    ]);
+  }
+
+  test_constructor() async {
+    await assertErrorsInCode(r'''
+import 'package:meta/meta.dart';
+
+class C {
+  @mustBeOverridden
+  C();
+}
+''', [
+      error(HintCode.INVALID_ANNOTATION_TARGET, 47, 16),
+    ]);
+  }
+
+  test_enum_member() async {
+    await assertErrorsInCode(r'''
+import 'package:meta/meta.dart';
+
+enum E {
+  one, two;
+  @mustBeOverridden
+  void m() {}
+}
+''', [
+      error(HintCode.INVALID_ANNOTATION_TARGET, 57, 17),
+    ]);
+  }
+
+  test_extension_member() async {
+    await assertErrorsInCode(r'''
+import 'package:meta/meta.dart';
+
+extension E on String {
+  @mustBeOverridden
+  void m() {}
+}
+''', [
+      error(HintCode.INVALID_ANNOTATION_TARGET, 60, 17),
+    ]);
+  }
+
+  test_mixin_instance_method() async {
+    await assertNoErrorsInCode(r'''
+import 'package:meta/meta.dart';
+
+mixin M {
+  @mustBeOverridden
+  void m() {}
+}
+''');
+  }
+
+  test_topLevel() async {
+    await assertErrorsInCode(r'''
+import 'package:meta/meta.dart';
+
+@mustBeOverridden
+void m() {}
+''', [
+      error(HintCode.INVALID_ANNOTATION_TARGET, 35, 16),
+    ]);
+  }
+}
+
+@reflectiveTest
 class InvalidAnnotationTargetTest extends PubPackageResolutionTest {
   // todo(pq): add tests for topLevelVariables:
   // https://dart-review.googlesource.com/c/sdk/+/200301
diff --git a/pkg/analyzer/test/src/diagnostics/missing_override_of_must_be_overridden_test.dart b/pkg/analyzer/test/src/diagnostics/missing_override_of_must_be_overridden_test.dart
new file mode 100644
index 0000000..ac2d3f4
--- /dev/null
+++ b/pkg/analyzer/test/src/diagnostics/missing_override_of_must_be_overridden_test.dart
@@ -0,0 +1,418 @@
+// Copyright (c) 2022, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'package:analyzer/src/error/codes.dart';
+import 'package:test_reflective_loader/test_reflective_loader.dart';
+
+import '../dart/resolution/context_collection_resolution.dart';
+
+main() {
+  defineReflectiveSuite(() {
+    defineReflectiveTests(MissingOverrideOfMustBeOverriddenTest);
+  });
+}
+
+@reflectiveTest
+class MissingOverrideOfMustBeOverriddenTest extends PubPackageResolutionTest {
+  @override
+  void setUp() {
+    super.setUp();
+    writeTestPackageConfigWithMeta();
+  }
+
+  test_field() async {
+    await assertErrorsInCode('''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  int f = 0;
+}
+
+class B extends A {}
+''', [
+      error(HintCode.MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_TWO, 86, 1),
+    ]);
+  }
+
+  test_field_overriddenWithField() async {
+    await assertNoErrorsInCode('''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  int f = 0;
+}
+
+class B extends A {
+  int f = 0;
+}
+''');
+  }
+
+  test_field_overriddenWithGetterSetterPair() async {
+    await assertNoErrorsInCode('''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  int f = 0;
+}
+
+class B extends A {
+  int get f => 0;
+
+  void set f(int value) {}
+}
+''');
+  }
+
+  test_field_overriddenWithOnlyGetter() async {
+    await assertErrorsInCode('''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  int f = 0;
+}
+
+class B extends A {
+  int get f => 0;
+}
+''', [
+      error(HintCode.MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_ONE, 86, 1),
+    ]);
+  }
+
+  test_finalField_overriddenWithOnlyGetter() async {
+    await assertNoErrorsInCode('''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  final int f = 0;
+}
+
+class B extends A {
+  int get f => 0;
+}
+''');
+  }
+
+  test_getter() async {
+    await assertErrorsInCode('''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  int get f => 0;
+}
+
+class B extends A {}
+''', [
+      error(HintCode.MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_ONE, 91, 1),
+    ]);
+  }
+
+  test_getter_overriddenWithField() async {
+    await assertNoErrorsInCode('''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  int get f => 0;
+}
+
+class B extends A {
+  int f = 0;
+}
+''');
+  }
+
+  test_getter_overriddenWithGetter() async {
+    await assertNoErrorsInCode('''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  int get f => 0;
+}
+
+class B extends A {
+  int get f => 0;
+}
+''');
+  }
+
+  test_method_directMixin() async {
+    await assertErrorsInCode('''
+import 'package:meta/meta.dart';
+
+mixin M {
+  @mustBeOverridden
+  void m() {}
+}
+
+class A with M {}
+''', [
+      error(HintCode.MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_ONE, 87, 1),
+    ]);
+  }
+
+  test_method_directSuperclass() async {
+    await assertErrorsInCode('''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  void m() {}
+}
+
+class B extends A {}
+''', [
+      error(HintCode.MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_ONE, 87, 1),
+    ]);
+  }
+
+  test_method_directSuperclass_three() async {
+    await assertErrorsInCode('''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  void m() {}
+
+  @mustBeOverridden
+  void n() {}
+
+  @mustBeOverridden
+  void o() {}
+}
+
+class B extends A {}
+''', [
+      error(HintCode.MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_THREE_PLUS, 157, 1),
+    ]);
+  }
+
+  test_method_directSuperclass_two() async {
+    await assertErrorsInCode('''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  void m() {}
+
+  @mustBeOverridden
+  void n() {}
+}
+
+class B extends A {}
+''', [
+      error(HintCode.MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_TWO, 122, 1),
+    ]);
+  }
+
+  test_method_hasAbstractOverride() async {
+    await assertErrorsInCode('''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  void m() {}
+}
+
+abstract class B extends A {
+  void m();
+}
+''', [
+      error(HintCode.MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_ONE, 96, 1),
+    ]);
+  }
+
+  test_method_hasConcreteOverride() async {
+    await assertNoErrorsInCode('''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  void m() {}
+}
+
+class B extends A {
+  void m() {}
+}
+''');
+  }
+
+  test_method_hasNoSuchMethod() async {
+    await assertNoErrorsInCode('''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  void m() {}
+}
+
+class B extends A {
+  dynamic noSuchMethod(Invocation invocation) => null;
+}
+''');
+  }
+
+  test_method_indirectMixin() async {
+    await assertErrorsInCode('''
+import 'package:meta/meta.dart';
+
+mixin M {
+  @mustBeOverridden
+  void m() {}
+}
+
+class A with M {
+  void m() {}
+}
+
+class B extends A {}
+''', [
+      error(HintCode.MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_ONE, 121, 1),
+    ]);
+  }
+
+  test_method_indirectSuperclass() async {
+    await assertErrorsInCode('''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  void m() {}
+}
+
+class B extends A {
+  void m() {}
+}
+
+class C extends B {}
+''', [
+      error(HintCode.MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_ONE, 124, 1),
+    ]);
+  }
+
+  test_method_indirectSuperclass_oneErrorPerName() async {
+    await assertErrorsInCode('''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  void m() {}
+}
+
+class B extends A {
+  @mustBeOverridden
+  void m() {}
+}
+
+class C extends B {}
+''', [
+      error(HintCode.MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_ONE, 144, 1),
+    ]);
+  }
+
+  test_method_mixinApplication() async {
+    await assertErrorsInCode('''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  void m() {}
+}
+
+class B = Object with A;
+''', [
+      error(HintCode.MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_ONE, 87, 1),
+    ]);
+  }
+
+  test_method_multipleDirectSuperclass() async {
+    await assertErrorsInCode('''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  void m() {}
+}
+
+class B {
+  @mustBeOverridden
+  void m() {}
+}
+
+abstract class C implements A, B {}
+''', [
+      error(HintCode.MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_ONE, 143, 1),
+    ]);
+  }
+
+  test_method_notVisible() async {
+    newFile('$testPackageLibPath/a.dart', '''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  void _m() {}
+}
+''');
+
+    await assertNoErrorsInCode('''
+import 'package:test/a.dart';
+
+class B extends A {}
+''');
+  }
+
+  test_method_superconstraint() async {
+    await assertErrorsInCode('''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  void m() {}
+}
+
+mixin M on A {}
+''', [
+      error(HintCode.MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_ONE, 87, 1),
+    ]);
+  }
+
+  test_operator_directSuperclass() async {
+    await assertErrorsInCode('''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  int operator+(int number) => 7;
+}
+
+class B extends A {}
+''', [
+      error(HintCode.MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_ONE, 107, 1),
+    ]);
+  }
+
+  test_setter() async {
+    await assertErrorsInCode('''
+import 'package:meta/meta.dart';
+
+class A {
+  @mustBeOverridden
+  void set f(int value) {}
+}
+
+class B extends A {}
+''', [
+      error(HintCode.MISSING_OVERRIDE_OF_MUST_BE_OVERRIDDEN_ONE, 100, 1),
+    ]);
+  }
+}
diff --git a/pkg/analyzer/test/src/diagnostics/parser_diagnostics.dart b/pkg/analyzer/test/src/diagnostics/parser_diagnostics.dart
index 8aae0fe..c2766b1 100644
--- a/pkg/analyzer/test/src/diagnostics/parser_diagnostics.dart
+++ b/pkg/analyzer/test/src/diagnostics/parser_diagnostics.dart
@@ -19,10 +19,12 @@
     AstNode node,
     String expected, {
     bool withCheckingLinking = false,
+    bool withOffsets = false,
   }) {
     var actual = _parsedNodeText(
       node,
       withCheckingLinking: withCheckingLinking,
+      withOffsets: withOffsets,
     );
     if (actual != expected) {
       print(actual);
@@ -61,6 +63,7 @@
   String _parsedNodeText(
     AstNode node, {
     required bool withCheckingLinking,
+    required bool withOffsets,
   }) {
     var buffer = StringBuffer();
     node.accept(
@@ -70,6 +73,7 @@
         indent: '',
         withCheckingLinking: withCheckingLinking,
         withResolution: false,
+        withOffsets: withOffsets,
       ),
     );
     return buffer.toString();
diff --git a/pkg/analyzer/test/src/diagnostics/test_all.dart b/pkg/analyzer/test/src/diagnostics/test_all.dart
index f68bbf7..5d6968b 100644
--- a/pkg/analyzer/test/src/diagnostics/test_all.dart
+++ b/pkg/analyzer/test/src/diagnostics/test_all.dart
@@ -443,6 +443,8 @@
     as missing_enum_constant_in_switch;
 import 'missing_exception_value_test.dart' as missing_exception_value;
 import 'missing_field_type_in_struct_test.dart' as missing_field_type_in_struct;
+import 'missing_override_of_must_be_overridden_test.dart'
+    as missing_override_of_must_be_overridden;
 import 'missing_required_param_test.dart' as missing_required_param;
 import 'missing_return_test.dart' as missing_return;
 import 'missing_size_annotation_carray_test.dart'
@@ -1087,6 +1089,7 @@
     missing_enum_constant_in_switch.main();
     missing_exception_value.main();
     missing_field_type_in_struct.main();
+    missing_override_of_must_be_overridden.main();
     missing_required_param.main();
     missing_return.main();
     missing_size_annotation_carray.main();
diff --git a/pkg/analyzer/test/src/fasta/ast_builder_test.dart b/pkg/analyzer/test/src/fasta/ast_builder_test.dart
index 32fbc78..b8872b3 100644
--- a/pkg/analyzer/test/src/fasta/ast_builder_test.dart
+++ b/pkg/analyzer/test/src/fasta/ast_builder_test.dart
@@ -33,6 +33,142 @@
 ''');
   }
 
+  void test_class_commentReferences_beforeAbstract() {
+    var parseResult = parseStringWithErrors(r'''
+/** [String] */ abstract class A {}
+''');
+    parseResult.assertNoErrors();
+
+    final node = parseResult.findNode.classDeclaration('class A');
+    assertParsedNodeText(
+        node,
+        r'''
+ClassDeclaration
+  documentationComment: Comment
+    references
+      CommentReference
+        expression: SimpleIdentifier
+          token: String @5
+    tokens
+      /** [String] */
+        offset: 0
+  abstractKeyword: abstract @16
+  classKeyword: class @25
+  name: SimpleIdentifier
+    token: A @31
+  leftBracket: { @33
+  rightBracket: } @34
+''',
+        withOffsets: true);
+  }
+
+  void test_class_commentReferences_beforeAnnotation() {
+    var parseResult = parseStringWithErrors(r'''
+/// See [int] and [String]
+/// and [Object].
+@Annotation
+abstract class A {}
+''');
+    parseResult.assertNoErrors();
+
+    final node = parseResult.findNode.classDeclaration('class A');
+    assertParsedNodeText(
+        node,
+        r'''
+ClassDeclaration
+  documentationComment: Comment
+    references
+      CommentReference
+        expression: SimpleIdentifier
+          token: int @9
+      CommentReference
+        expression: SimpleIdentifier
+          token: String @19
+      CommentReference
+        expression: SimpleIdentifier
+          token: Object @36
+    tokens
+      /// See [int] and [String]
+        offset: 0
+      /// and [Object].
+        offset: 27
+  metadata
+    Annotation
+      atSign: @ @45
+      name: SimpleIdentifier
+        token: Annotation @46
+  abstractKeyword: abstract @57
+  classKeyword: class @66
+  name: SimpleIdentifier
+    token: A @72
+  leftBracket: { @74
+  rightBracket: } @75
+''',
+        withOffsets: true);
+  }
+
+  void test_class_commentReferences_complex() {
+    var parseResult = parseStringWithErrors(r'''
+/// This dartdoc comment [should] be ignored
+@Annotation
+/// This dartdoc comment is [included].
+// a non dartdoc comment [inbetween]
+/// See [int] and [String] but `not [a]`
+/// ```
+/// This [code] block should be ignored
+/// ```
+/// and [Object].
+abstract class A {}
+''');
+    parseResult.assertNoErrors();
+
+    final node = parseResult.findNode.classDeclaration('class A');
+    assertParsedNodeText(
+        node,
+        r'''
+ClassDeclaration
+  documentationComment: Comment
+    references
+      CommentReference
+        expression: SimpleIdentifier
+          token: included @86
+      CommentReference
+        expression: SimpleIdentifier
+          token: int @143
+      CommentReference
+        expression: SimpleIdentifier
+          token: String @153
+      CommentReference
+        expression: SimpleIdentifier
+          token: Object @240
+    tokens
+      /// This dartdoc comment is [included].
+        offset: 57
+      /// See [int] and [String] but `not [a]`
+        offset: 134
+      /// ```
+        offset: 175
+      /// This [code] block should be ignored
+        offset: 183
+      /// ```
+        offset: 223
+      /// and [Object].
+        offset: 231
+  metadata
+    Annotation
+      atSign: @ @45
+      name: SimpleIdentifier
+        token: Annotation @46
+  abstractKeyword: abstract @249
+  classKeyword: class @258
+  name: SimpleIdentifier
+    token: A @264
+  leftBracket: { @266
+  rightBracket: } @267
+''',
+        withOffsets: true);
+  }
+
   void test_class_macro() {
     var parseResult = parseStringWithErrors(r'''
 macro class A {}
diff --git a/pkg/analyzer/test/src/summary/element_text.dart b/pkg/analyzer/test/src/summary/element_text.dart
index 523f45b..5a12633 100644
--- a/pkg/analyzer/test/src/summary/element_text.dart
+++ b/pkg/analyzer/test/src/summary/element_text.dart
@@ -504,6 +504,8 @@
   }
 
   void _writeExportElement(LibraryExportElement e) {
+    e.location;
+
     _writeIndentedLine(() {
       _writeDirectiveUri(e.uri);
     });
@@ -587,6 +589,8 @@
   }
 
   void _writeImportElement(LibraryImportElement e) {
+    e.location;
+
     _writeIndentedLine(() {
       _writeDirectiveUri(e.uri);
       _writeIf(e.isSynthetic, ' synthetic');
diff --git a/pkg/dart2js_info/bin/src/runtime_coverage_analysis.dart b/pkg/dart2js_info/bin/src/runtime_coverage_analysis.dart
index bef9247..5c8019d 100644
--- a/pkg/dart2js_info/bin/src/runtime_coverage_analysis.dart
+++ b/pkg/dart2js_info/bin/src/runtime_coverage_analysis.dart
@@ -49,18 +49,25 @@
   RuntimeCoverageAnalysisCommand() {
     argParser.addFlag('show-packages',
         defaultsTo: false, help: "Show coverage details at the package level.");
+    argParser.addOption('class-filter',
+        defaultsTo: '', help: "Show coverage details filtered by class.");
   }
 
   @override
   void run() async {
-    final argRes = argResults!;
-    final args = argRes.rest;
+    var args = argResults!.rest;
     if (args.length < 2) {
       usageException('Missing arguments, expected: info.data coverage.json');
     }
-    final showPackages = argRes['show-packages'];
+    var showPackages = argResults!['show-packages'] as bool;
+    var filterFile = argResults!['class-filter'] as String;
+    if (showPackages && filterFile.isNotEmpty) {
+      throw StateError('Cannot specify both packages view and filtered view.');
+    }
     if (showPackages) {
       await _reportWithPackages(args[0], args[1]);
+    } else if (filterFile.isNotEmpty) {
+      _reportWithClassFilter(args[0], args[1], filterFile);
     } else {
       await _report(args[0], args[1]);
     }
@@ -71,10 +78,26 @@
   String infoFile,
   String coverageFile,
 ) async {
-  var info = await infoFromFile(infoFile);
-  var coverageRaw = jsonDecode(File(coverageFile).readAsStringSync());
+  final info = await infoFromFile(infoFile);
+  final coverageRaw = jsonDecode(File(coverageFile).readAsStringSync());
   // The value associated with each coverage item isn't used for now.
-  var coverage = coverageRaw.keys.toSet();
+  final coverage = coverageRaw.keys.toSet();
+
+  // Ensure that a used class's super, mixed in, and implemented classes are
+  // correctly marked as used.
+  final seen = <ClassInfo>{};
+  void collectSupers(ClassInfo c) {
+    if (seen.contains(c)) return;
+    seen.add(c);
+    coverage.add(qualifiedName(c));
+    c.supers.forEach(collectSupers);
+  }
+
+  for (final c in info.classes) {
+    if (coverage.contains(qualifiedName(c))) {
+      c.supers.forEach(collectSupers);
+    }
+  }
 
   int totalProgramSize = info.program!.size;
   int totalLibSize = info.libraries.fold(0, (n, lib) => n + lib.size);
@@ -120,22 +143,39 @@
   }
 }
 
+/// Generates a report aggregated at the package level.
 Future<void> _reportWithPackages(
   String infoFile,
   String coverageFile,
 ) async {
-  var info = await infoFromFile(infoFile);
-  var coverageRaw = jsonDecode(File(coverageFile).readAsStringSync());
+  final info = await infoFromFile(infoFile);
+  final coverageRaw = jsonDecode(File(coverageFile).readAsStringSync());
   // The value associated with each coverage item isn't used for now.
-  var coverage = coverageRaw.keys.toSet();
+  final coverage = coverageRaw.keys.toSet();
+
+  // Ensure that a used class's super, mixed in, and implemented classes are
+  // correctly marked as used.
+  final seen = <ClassInfo>{};
+  void collectSupers(ClassInfo c) {
+    if (seen.contains(c)) return;
+    seen.add(c);
+    coverage.add(qualifiedName(c));
+    c.supers.forEach(collectSupers);
+  }
+
+  for (final c in info.classes) {
+    if (coverage.contains(qualifiedName(c))) {
+      c.supers.forEach(collectSupers);
+    }
+  }
 
   int totalProgramSize = info.program!.size;
   int totalLibSize = info.libraries.fold(0, (n, lib) => n + lib.size);
 
   int totalCode = 0;
   int usedCode = 0;
-  final packageData = <String?, PackageInfo>{};
-  final unused = PriorityQueue<Info>((a, b) => b.size.compareTo(a.size));
+  var packageData = <String, RuntimePackageInfo>{};
+  var unused = PriorityQueue<Info>((a, b) => b.size.compareTo(a.size));
 
   void tallyCode(BasicInfo i) {
     totalCode += i.size;
@@ -143,7 +183,8 @@
     var used = coverage.contains(name);
 
     var groupName = libraryGroupName(i);
-    (packageData[groupName] ??= PackageInfo()).add(i, used: used);
+    packageData.putIfAbsent(groupName!, () => RuntimePackageInfo());
+    packageData[groupName]!.add(i, used: used);
 
     if (used) {
       usedCode += i.size;
@@ -225,6 +266,165 @@
   }
 }
 
+/// Generates a report filtered by class.
+Future<void> _reportWithClassFilter(
+    String infoFile, String coverageFile, String filterFile,
+    {bool showUncategorizedClasses = false}) async {
+  final info = await infoFromFile(infoFile);
+  final coverageRaw = jsonDecode(File(coverageFile).readAsStringSync());
+  // The value associated with each coverage item isn't used for now.
+  Set<String> coverage = coverageRaw.keys.toSet();
+
+  final classFilterData = <String, RuntimeClassInfo>{};
+  for (final runtimeClassInfo in File(filterFile)
+      .readAsLinesSync()
+      .map((l) => RuntimeClassInfo.fromAngularInfo(l))) {
+    classFilterData[runtimeClassInfo.key] = runtimeClassInfo;
+  }
+
+  // Ensure that a used class's super, mixed in, and implemented classes are
+  // correctly marked as used.
+  final seen = <ClassInfo>{};
+  void collectSupers(ClassInfo c) {
+    if (seen.contains(c)) return;
+    seen.add(c);
+    coverage.add(qualifiedName(c));
+    c.supers.forEach(collectSupers);
+  }
+
+  for (final c in info.classes) {
+    if (coverage.contains(qualifiedName(c))) {
+      c.supers.forEach(collectSupers);
+    }
+  }
+
+  int totalProgramSize = info.program!.size;
+  int totalLibSize = info.libraries.fold(0, (n, lib) => n + lib.size);
+
+  int usedCode = 0;
+  int filterTotalCode = 0;
+  int filterUsedCode = 0;
+  int usedProcessedCode = 0;
+
+  final uncategorizedClasses = <ClassInfo>{};
+  final categorizedClasses = <ClassInfo>{};
+
+  void processInfoForClass(ClassInfo info) {
+    final name = qualifiedName(info);
+    final used = coverage.contains(name);
+    final nameWithoutPrefix =
+        name.substring(name.indexOf(':') + 1, name.length);
+    if (used) {
+      usedCode += info.size;
+    }
+
+    final runtimeClassInfo = classFilterData[nameWithoutPrefix];
+    if (runtimeClassInfo == null) {
+      uncategorizedClasses.add(info);
+      return;
+    }
+    if (categorizedClasses.contains(info)) {
+      runtimeClassInfo.annotateWithClassInfo(info, used: used);
+      return;
+    }
+    categorizedClasses.add(info);
+    runtimeClassInfo.annotateWithClassInfo(info, used: used);
+    filterTotalCode += info.size;
+
+    if (used) {
+      usedProcessedCode += 1;
+      filterUsedCode += info.size;
+    }
+  }
+
+  info.classes.forEach(processInfoForClass);
+
+  int totalCode = 0;
+
+  for (final closure in info.closures) {
+    totalCode += closure.size;
+    final name = qualifiedName(closure);
+    final used = coverage.contains(name);
+    if (used) {
+      usedCode += closure.size;
+    }
+  }
+
+  for (final classInfo in uncategorizedClasses) {
+    totalCode += classInfo.size;
+    final name = qualifiedName(classInfo);
+    final used = coverage.contains(name);
+    if (used) {
+      usedCode += classInfo.size;
+    }
+  }
+
+  for (final classInfo in categorizedClasses) {
+    totalCode += classInfo.size;
+    final name = qualifiedName(classInfo);
+    final used = coverage.contains(name);
+    if (used) {
+      usedCode += classInfo.size;
+    }
+  }
+
+  _section('Runtime Coverage Summary');
+  _showHeader('', 'bytes', '%');
+  _show('Program size', totalProgramSize, totalProgramSize);
+  _show('Libraries (excluding statics)', totalLibSize, totalProgramSize);
+  _show('Code (classes + closures)', totalCode, totalProgramSize);
+  _show('Used', usedCode, totalProgramSize);
+
+  print('');
+  final unusedTotal = totalCode - usedCode;
+  _section('Runtime Coverage Breakdown (filtered)', size: unusedTotal);
+  print('Filtered Breakdown:');
+  print('Total (count): ${categorizedClasses.length}');
+  print('Used  (count): $usedProcessedCode '
+      '(${usedProcessedCode / categorizedClasses.length * 100}%)');
+  print('Total (bytes): $filterTotalCode');
+  print('Used  (bytes): $filterUsedCode '
+      '(${filterUsedCode / filterTotalCode * 100}%)');
+  for (final runtimeClassInfo in classFilterData.values
+      .sortedBy((v) => v.annotated ? (v.used ? v.size : -v.size) : 0)) {
+    if (!runtimeClassInfo.annotated) continue;
+    final classInfo = runtimeClassInfo.info;
+    final percent = (classInfo.size * 100 / filterTotalCode).toStringAsFixed(2);
+    final name = qualifiedName(classInfo);
+    final used = coverage.contains(name);
+    final usedTick = used ? '+' : '-';
+    final mainUnitTick = classInfo.outputUnit?.name == 'main' ? 'M' : 'D';
+    _leftPadded('    [$usedTick$mainUnitTick] ${qualifiedName(classInfo)}:',
+        '${classInfo.size} bytes ($percent% of filtered items)');
+  }
+
+  print('');
+  print('Unaccounted classes in filter:');
+  for (final runtimeClassInfo
+      in classFilterData.values.where((v) => !v.annotated)) {
+    print('    ${runtimeClassInfo.key}');
+  }
+
+  if (showUncategorizedClasses) {
+    int uncategorizedSize = 0;
+    for (final info in uncategorizedClasses) {
+      uncategorizedSize += info.size;
+    }
+    _section('Uncategorized Info', size: uncategorizedSize);
+    for (var info in uncategorizedClasses) {
+      final percent = (info.size * 100 / totalProgramSize).toStringAsFixed(2);
+      final name = qualifiedName(info);
+      final used = coverage.contains(name);
+      final usedTick = used ? '+' : '-';
+      final mainUnitTick = info.outputUnit?.name == 'main' ? 'M' : 'D';
+      _leftPadded('    [$usedTick$mainUnitTick] $name:',
+          '${info.size} bytes ($percent% of program)');
+    }
+  }
+
+  print('');
+}
+
 void _section(String title, {int? size}) {
   if (size == null) {
     print(title);
@@ -247,7 +447,7 @@
   print(' ${pad(msg1, 50, right: true)} $msg2');
 }
 
-class PackageInfo {
+class RuntimePackageInfo {
   final elements = PriorityQueue<BasicInfo>((a, b) => b.size.compareTo(a.size));
 
   num mainUnitSize = 0;
@@ -257,7 +457,7 @@
   num usedRatio = 0;
   num usedSize = 0;
 
-  PackageInfo();
+  RuntimePackageInfo();
 
   void add(BasicInfo i, {bool used = true}) {
     totalSize += i.size;
@@ -276,3 +476,58 @@
     usedRatio = usedSize / totalSize;
   }
 }
+
+class RuntimeClassInfo {
+  late String scheme;
+  late String package;
+  late String? path;
+  late String name;
+
+  late num size;
+  late bool used;
+  late bool inMainUnit;
+  late ClassInfo info;
+
+  bool annotated = false;
+
+  RuntimeClassInfo();
+
+  /// Ingests the output from Angular's info generator.
+  ///
+  /// Example: 'fully:qualified/path/to/file.dart - ClassName'
+  RuntimeClassInfo.fromAngularInfo(String input) {
+    final colonIndex = input.indexOf(':');
+    if (colonIndex < 0) {
+      throw ArgumentError('AngularInfo format cannot accept undefined schemes.'
+          ' No scheme found for: $input');
+    }
+    final slashIndex = input.indexOf('/');
+    final spaceIndex = input.indexOf(' ');
+    final separatorSize = ' - '.length;
+    scheme = input.substring(0, colonIndex);
+    if (slashIndex < 0) {
+      path = null;
+      package = input.substring(colonIndex + 1, spaceIndex);
+    } else {
+      package = input.substring(colonIndex + 1, slashIndex);
+      path = input.substring(slashIndex + 1, spaceIndex);
+    }
+    name = input.substring(spaceIndex + separatorSize, input.length);
+  }
+
+  String get key =>
+      '$package${path == null ? '' : '/$path'}:$name'.replaceAll('/lib/', '/');
+
+  void annotateWithClassInfo(ClassInfo i, {bool used = true}) {
+    size = i.size;
+    this.used = used;
+    inMainUnit = i.outputUnit!.name == 'main';
+    info = i;
+    annotated = true;
+  }
+
+  @override
+  String toString() {
+    return '$package/$path - $name';
+  }
+}
diff --git a/pkg/dart2wasm/bin/dart2wasm.dart b/pkg/dart2wasm/bin/dart2wasm.dart
index 8e1f696..ac3d42d 100644
--- a/pkg/dart2wasm/bin/dart2wasm.dart
+++ b/pkg/dart2wasm/bin/dart2wasm.dart
@@ -60,8 +60,20 @@
   UriOption("platform", (o, value) => o.platformPath = value),
   IntMultiOption(
       "watch", (o, values) => o.translatorOptions.watchPoints = values),
+  StringMultiOption(
+      "define", (o, values) => o.environment = processEnvironment(values),
+      abbr: "D")
 ];
 
+Map<String, String> processEnvironment(List<String> defines) =>
+    Map<String, String>.fromEntries(defines.map((d) {
+      List<String> keyAndValue = d.split('=');
+      if (keyAndValue.length != 2) {
+        throw ArgumentError('Bad define string: $d');
+      }
+      return MapEntry<String, String>(keyAndValue[0], keyAndValue[1]);
+    }));
+
 CompilerOptions parseArguments(List<String> arguments) {
   args.ArgParser parser = args.ArgParser();
   for (Option arg in options) {
diff --git a/pkg/dart2wasm/lib/code_generator.dart b/pkg/dart2wasm/lib/code_generator.dart
index d59ad92..e1be91c 100644
--- a/pkg/dart2wasm/lib/code_generator.dart
+++ b/pkg/dart2wasm/lib/code_generator.dart
@@ -291,7 +291,9 @@
         b.struct_set(info.struct, translator.typeParameterIndex[typeParam]!);
       }
       for (Field field in cls.fields) {
-        if (field.isInstanceMember && field.initializer != null) {
+        if (field.isInstanceMember &&
+            field.initializer != null &&
+            field.type is! VoidType) {
           int fieldIndex = translator.fieldIndex[field]!;
           b.local_get(thisLocal!);
           wrap(
@@ -1420,6 +1422,10 @@
 
   @override
   w.ValueType visitVariableGet(VariableGet node, w.ValueType expectedType) {
+    // Return `void` for a void [VariableGet].
+    if (node.variable.type is VoidType) {
+      return voidMarker;
+    }
     w.Local? local = locals[node.variable];
     Capture? capture = closures.captures[node.variable];
     if (capture != null) {
@@ -1442,6 +1448,10 @@
 
   @override
   w.ValueType visitVariableSet(VariableSet node, w.ValueType expectedType) {
+    // Return `void` for a void [VariableSet].
+    if (node.variable.type is VoidType) {
+      return wrap(node.value, voidMarker);
+    }
     w.Local? local = locals[node.variable];
     Capture? capture = closures.captures[node.variable];
     bool preserved = expectedType != voidMarker;
@@ -1512,10 +1522,11 @@
     } else {
       w.BaseFunction targetFunction =
           translator.functions.getFunction(target.reference);
-      wrap(node.value, targetFunction.type.inputs.single);
+      w.ValueType paramType = targetFunction.type.inputs.single;
+      wrap(node.value, paramType);
       w.Local? temp;
       if (preserved) {
-        temp = addLocal(translateType(dartTypeOf(node.value)));
+        temp = addLocal(paramType);
         b.local_tee(temp);
       }
       call(target.reference);
diff --git a/pkg/dart2wasm/lib/compile.dart b/pkg/dart2wasm/lib/compile.dart
index 990f8dbd..e398aee 100644
--- a/pkg/dart2wasm/lib/compile.dart
+++ b/pkg/dart2wasm/lib/compile.dart
@@ -45,7 +45,7 @@
   CompilerOptions compilerOptions = CompilerOptions()
     ..target = target
     ..sdkRoot = options.sdkPath
-    ..environmentDefines = {}
+    ..environmentDefines = options.environment
     ..verbose = false
     ..onDiagnostic = diagnosticMessageHandler
     ..nnbdMode = NnbdMode.Strong;
diff --git a/pkg/dart2wasm/lib/compiler_options.dart b/pkg/dart2wasm/lib/compiler_options.dart
index b206711..3f8c7d2 100644
--- a/pkg/dart2wasm/lib/compiler_options.dart
+++ b/pkg/dart2wasm/lib/compiler_options.dart
@@ -13,6 +13,7 @@
   Uri? platformPath;
   Uri mainUri;
   String outputFile;
+  Map<String, String> environment = const {};
 
   factory CompilerOptions.defaultOptions() =>
       CompilerOptions(mainUri: Uri(), outputFile: '');
diff --git a/pkg/dart2wasm/lib/option.dart b/pkg/dart2wasm/lib/option.dart
index ab9d219..b8e20dc 100644
--- a/pkg/dart2wasm/lib/option.dart
+++ b/pkg/dart2wasm/lib/option.dart
@@ -63,9 +63,13 @@
       String name,
       void Function(CompilerOptions o, List<T> v) applyToOptions,
       T converter(dynamic v),
-      {Iterable<String>? defaultsTo})
-      : super(name, (a) => a.addMultiOption(name, defaultsTo: defaultsTo),
-            applyToOptions, (vs) => vs.map(converter).cast<T>().toList());
+      {Iterable<String>? defaultsTo,
+      String? abbr})
+      : super(
+            name,
+            (a) => a.addMultiOption(name, abbr: abbr, defaultsTo: defaultsTo),
+            applyToOptions,
+            (vs) => vs.map(converter).cast<T>().toList());
 }
 
 class IntMultiOption extends MultiValueOption<int> {
@@ -74,3 +78,11 @@
       : super(name, applyToOptions, (v) => int.parse(v),
             defaultsTo: defaultsTo);
 }
+
+class StringMultiOption extends MultiValueOption<String> {
+  StringMultiOption(
+      name, void applyToOptions(CompilerOptions o, List<String> v),
+      {String? abbr, Iterable<String>? defaultsTo})
+      : super(name, applyToOptions, (v) => v,
+            abbr: abbr, defaultsTo: defaultsTo);
+}
diff --git a/pkg/dart2wasm/lib/translator.dart b/pkg/dart2wasm/lib/translator.dart
index 8cd8483..fb50aec 100644
--- a/pkg/dart2wasm/lib/translator.dart
+++ b/pkg/dart2wasm/lib/translator.dart
@@ -538,18 +538,14 @@
       return typeForInfo(
           classInfo[type.classNode]!, type.isPotentiallyNullable);
     }
-    if (type is DynamicType) {
+    if (type is DynamicType || type is VoidType) {
       return topInfo.nullableType;
     }
-    if (type is NullType) {
+    // TODO(joshualitt): When we add support to `wasm_builder` for bottom heap
+    // types, we should return bottom heap type here.
+    if (type is NullType || type is NeverType) {
       return topInfo.nullableType;
     }
-    if (type is NeverType) {
-      return topInfo.nullableType;
-    }
-    if (type is VoidType) {
-      return voidMarker;
-    }
     if (type is TypeParameterType) {
       return translateStorageType(type.isPotentiallyNullable
           ? type.bound.withDeclaredNullability(type.nullability)
diff --git a/pkg/meta/CHANGELOG.md b/pkg/meta/CHANGELOG.md
index 1d01881..db0a8e5 100644
--- a/pkg/meta/CHANGELOG.md
+++ b/pkg/meta/CHANGELOG.md
@@ -1,3 +1,8 @@
+## 1.9.0
+
+* Introduce `@MustBeOverridden` to annotate class or mixin members which must be
+  overridden in all subclasses.
+
 ## 1.8.0
 
 * Add `@UseResult.unless`.
diff --git a/pkg/meta/lib/meta.dart b/pkg/meta/lib/meta.dart
index 076f2c9..2f2fbf3 100644
--- a/pkg/meta/lib/meta.dart
+++ b/pkg/meta/lib/meta.dart
@@ -171,6 +171,26 @@
 ///   constructor is not a compile-time constant.
 const _Literal literal = _Literal();
 
+/// Used to annotate an instance member `m` declared on a class or mixin `C`.
+/// Indicates that every subclass of `C`, concrete or abstract, must directly
+/// override `m`.
+///
+/// This annotation places no restrictions on the overriding members. In
+/// particular, it does not require that the overriding members invoke the
+/// overridden member. The annotation [mustCallSuper] can be used to add that
+/// requirement.
+///
+/// Tools, such as the analyzer, can provide feedback if
+///
+/// * the annotation is associated with anything other than an instance member
+///   (a method, operator, field, getter, or setter) of a class or of a mixin,
+///   or
+/// * the annotation is associated with a member `m` in class or mixin `C`, and
+///   there is a class or mixin `D` which is a subclass of `C` (directly or
+///   indirectly), and `D` does not directly declare a concrete override of `m`
+///   and does not directly declare a concrete override of `noSuchMethod`.
+const _MustBeOverridden mustBeOverridden = _MustBeOverridden();
+
 /// Used to annotate an instance method `m`. Indicates that every invocation of
 /// a method that overrides `m` must also invoke `m`. In addition, every method
 /// that overrides `m` is implicitly annotated with this same annotation.
@@ -427,6 +447,16 @@
   const _Literal();
 }
 
+@Target({
+  TargetKind.field,
+  TargetKind.getter,
+  TargetKind.method,
+  TargetKind.setter,
+})
+class _MustBeOverridden {
+  const _MustBeOverridden();
+}
+
 class _MustCallSuper {
   const _MustCallSuper();
 }
diff --git a/pkg/scrape/example/class_reuse.dart b/pkg/scrape/example/class_reuse.dart
index 6f5e766..8d6b0e0 100644
--- a/pkg/scrape/example/class_reuse.dart
+++ b/pkg/scrape/example/class_reuse.dart
@@ -18,7 +18,7 @@
 class ClassReuseVisitor extends ScrapeVisitor {
   @override
   void visitClassDeclaration(ClassDeclaration node) {
-    if (node.isAbstract) {
+    if (node.abstractKeyword != null) {
       record('Declarations', 'abstract class');
     } else {
       record('Declarations', 'class');
diff --git a/pkg/test_runner/lib/src/compiler_configuration.dart b/pkg/test_runner/lib/src/compiler_configuration.dart
index 17f8aa5..c5e47c1 100644
--- a/pkg/test_runner/lib/src/compiler_configuration.dart
+++ b/pkg/test_runner/lib/src/compiler_configuration.dart
@@ -528,6 +528,7 @@
   List<String> computeCompilerArguments(
       TestFile testFile, List<String> vmOptions, List<String> args) {
     return [
+      ...testFile.sharedOptions,
       // The file being compiled is the last argument.
       args.last
     ];
diff --git a/runtime/include/dart_api.h b/runtime/include/dart_api.h
index f45925e..bbc1291 100644
--- a/runtime/include/dart_api.h
+++ b/runtime/include/dart_api.h
@@ -1645,6 +1645,8 @@
  *
  * Requires there to be a current isolate.
  *
+ * For posting messages outside of an isolate see \ref Dart_PostCObject.
+ *
  * \param port_id The destination port.
  * \param object An object from the current isolate.
  *
diff --git a/runtime/tests/vm/dart/use_dwarf_stack_traces_flag_test.dart b/runtime/tests/vm/dart/use_dwarf_stack_traces_flag_test.dart
index 08936ff..f8598a4 100644
--- a/runtime/tests/vm/dart/use_dwarf_stack_traces_flag_test.dart
+++ b/runtime/tests/vm/dart/use_dwarf_stack_traces_flag_test.dart
@@ -110,12 +110,10 @@
     // Check with DWARF in generated snapshot.
     await compareTraces(nonDwarfTrace1, output1, output2, scriptDwarfSnapshot);
 
-    // Currently there are no appropriate buildtools on the SIMARM and SIMARM64
-    // trybots as normally they compile to ELF and don't need them for compiling
-    // assembly snapshots.
-    if ((Platform.isLinux || Platform.isMacOS) &&
-        !buildDir.endsWith('SIMARM') &&
-        !buildDir.endsWith('SIMARM64')) {
+    // Currently there are no appropriate buildtools on the simulator trybots as
+    // normally they compile to ELF and don't need them for compiling assembly
+    // snapshots.
+    if ((Platform.isLinux || Platform.isMacOS) && !isSimulator) {
       final scriptAssembly = path.join(tempDir, 'dwarf_assembly.S');
       final scriptDwarfAssemblyDebugInfo =
           path.join(tempDir, 'dwarf_assembly_info.so');
diff --git a/runtime/tests/vm/dart/use_flag_test_helper.dart b/runtime/tests/vm/dart/use_flag_test_helper.dart
index 159010b0..ccac55c 100644
--- a/runtime/tests/vm/dart/use_flag_test_helper.dart
+++ b/runtime/tests/vm/dart/use_flag_test_helper.dart
@@ -24,6 +24,7 @@
     : path.join(buildDir + '_X64', _genSnapshotBase);
 final aotRuntime = path.join(
     buildDir, 'dart_precompiled_runtime' + (Platform.isWindows ? '.exe' : ''));
+final isSimulator = path.basename(buildDir).contains('SIM');
 
 String? get clangBuildToolsDir {
   String archDir;
@@ -49,7 +50,10 @@
   String cc = 'gcc';
   String shared = '-shared';
 
-  if (buildDir.endsWith('SIMARM') || buildDir.endsWith('SIMARM64')) {
+  if (buildDir.endsWith('SIMRISCV64')) {
+    cc = 'riscv64-linux-gnu-gcc';
+  } else if (isSimulator) {
+    // For other simulators, depend on buildtools existing.
     final clangBuildTools = clangBuildToolsDir;
     if (clangBuildTools != null) {
       cc = path.join(clangBuildTools, 'clang');
@@ -61,6 +65,7 @@
     cc = 'clang';
   }
 
+  // TODO(49519): What do we need to change for SIMRISCV64?
   if (buildDir.endsWith('SIMARM')) {
     ccFlags.add('--target=armv7-linux-gnueabihf');
   } else if (buildDir.endsWith('SIMARM64')) {
@@ -102,9 +107,7 @@
 
   var strip = 'strip';
 
-  if (buildDir.endsWith('SIMARM') ||
-      buildDir.endsWith('SIMARM64') ||
-      (Platform.isMacOS && forceElf)) {
+  if (isSimulator || (Platform.isMacOS && forceElf)) {
     final clangBuildTools = clangBuildToolsDir;
     if (clangBuildTools != null) {
       strip = path.join(clangBuildTools, 'llvm-strip');
diff --git a/runtime/tests/vm/dart_2/use_dwarf_stack_traces_flag_test.dart b/runtime/tests/vm/dart_2/use_dwarf_stack_traces_flag_test.dart
index 84cc657..7b2737e 100644
--- a/runtime/tests/vm/dart_2/use_dwarf_stack_traces_flag_test.dart
+++ b/runtime/tests/vm/dart_2/use_dwarf_stack_traces_flag_test.dart
@@ -112,12 +112,10 @@
     // Check with DWARF in generated snapshot.
     await compareTraces(nonDwarfTrace1, output1, output2, scriptDwarfSnapshot);
 
-    // Currently there are no appropriate buildtools on the SIMARM and SIMARM64
-    // trybots as normally they compile to ELF and don't need them for compiling
-    // assembly snapshots.
-    if ((Platform.isLinux || Platform.isMacOS) &&
-        !buildDir.endsWith('SIMARM') &&
-        !buildDir.endsWith('SIMARM64')) {
+    // Currently there are no appropriate buildtools on the simulator trybots as
+    // normally they compile to ELF and don't need them for compiling assembly
+    // snapshots.
+    if ((Platform.isLinux || Platform.isMacOS) && !isSimulator) {
       final scriptAssembly = path.join(tempDir, 'dwarf_assembly.S');
       final scriptDwarfAssemblyDebugInfo =
           path.join(tempDir, 'dwarf_assembly_info.so');
diff --git a/runtime/tests/vm/dart_2/use_flag_test_helper.dart b/runtime/tests/vm/dart_2/use_flag_test_helper.dart
index ecdc9a5..67e68cf 100644
--- a/runtime/tests/vm/dart_2/use_flag_test_helper.dart
+++ b/runtime/tests/vm/dart_2/use_flag_test_helper.dart
@@ -26,6 +26,7 @@
     : path.join(buildDir + '_X64', _genSnapshotBase);
 final aotRuntime = path.join(
     buildDir, 'dart_precompiled_runtime' + (Platform.isWindows ? '.exe' : ''));
+final isSimulator = path.basename(buildDir).contains('SIM');
 
 String get clangBuildToolsDir {
   String archDir;
@@ -51,7 +52,7 @@
   String cc = 'gcc';
   String shared = '-shared';
 
-  if (buildDir.endsWith('SIMARM') || buildDir.endsWith('SIMARM64')) {
+  if (isSimulator) {
     final clangBuildTools = clangBuildToolsDir;
     if (clangBuildTools != null) {
       cc = path.join(clangBuildTools, 'clang');
@@ -63,6 +64,7 @@
     cc = 'clang';
   }
 
+  // TODO(49519): What do we need to change for SIMRISCV64?
   if (buildDir.endsWith('SIMARM')) {
     ccFlags.add('--target=armv7-linux-gnueabihf');
   } else if (buildDir.endsWith('SIMARM64')) {
@@ -104,9 +106,7 @@
 
   var strip = 'strip';
 
-  if (buildDir.endsWith('SIMARM') ||
-      buildDir.endsWith('SIMARM64') ||
-      (Platform.isMacOS && forceElf)) {
+  if (isSimulator || (Platform.isMacOS && forceElf)) {
     if (clangBuildToolsDir != null) {
       strip = path.join(clangBuildToolsDir, 'llvm-strip');
     } else {
diff --git a/tools/VERSION b/tools/VERSION
index d5426d3..b8ca4a2 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -27,5 +27,5 @@
 MAJOR 2
 MINOR 19
 PATCH 0
-PRERELEASE 34
+PRERELEASE 35
 PRERELEASE_PATCH 0
\ No newline at end of file