Disable closure wrapping by default

test/dart_codegen/expect/async/broadcast_stream_controller.dart

 part of dart.async;
  class _BroadcastStream<T> extends _ControllerStream<T> {_BroadcastStream(_StreamControllerLifecycle controller) : super(DEVC$RT.cast(controller, DEVC$RT.type((_StreamControllerLifecycle<dynamic> _) {
   }
 ), DEVC$RT.type((_StreamControllerLifecycle<T> _) {
   }
 ), "CompositeCast", """line 8, column 67 of dart:async/broadcast_stream_controller.dart: """, controller is _StreamControllerLifecycle<T>, false));
  bool get isBroadcast => true;
 }
  abstract class _BroadcastSubscriptionLink {_BroadcastSubscriptionLink _next;
  _BroadcastSubscriptionLink _previous;
@@ skipping 219 matching lines @@
 );
 }
  void _sendError(Object error, StackTrace stackTrace) {
 if (_isEmpty) return; _forEachListener((_BufferingStreamSubscription<T> subscription) {
 subscription._addError(error, stackTrace);
 }
 );
 }
  void _sendDone() {
 if (!_isEmpty) {
-_forEachListener(((__x8) => DEVC$RT.wrap((dynamic f(_BroadcastSubscription<T> __u3)) {
-dynamic c(_BroadcastSubscription<T> x0) => f(DEVC$RT.cast(x0, DEVC$RT.type((_BufferingStreamSubscription<T> _) {
+_forEachListener(((__x7) => DEVC$RT.cast(__x7, DEVC$RT.type((__t5<T> _) {
 }
-), DEVC$RT.type((_BroadcastSubscription<T> _) {
+), DEVC$RT.type((__t3<T> _) {
 }
-), "CastParam", """line 372, column 24 of dart:async/broadcast_stream_controller.dart: """, x0 is _BroadcastSubscription<T>, false));
- return f == null ? null : c;
-}
-, __x8, DEVC$RT.type((__t6<T> _) {
-}
-), DEVC$RT.type((__t4<T> _) {
-}
-), "WrapLiteral", """line 372, column 24 of dart:async/broadcast_stream_controller.dart: """, __x8 is __t4<T>))((_BroadcastSubscription<T> subscription) {
+), "InferableClosure", """line 372, column 24 of dart:async/broadcast_stream_controller.dart: """, __x7 is __t3<T>, false))((_BroadcastSubscription<T> subscription) {
 subscription._close();
 }
 ));
 }
  else {
 assert (_doneFuture != null); assert (_doneFuture._mayComplete); _doneFuture._asyncComplete(null);
 }
 }
 }
  class _AsyncBroadcastStreamController<T> extends _BroadcastStreamController<T> {_AsyncBroadcastStreamController(void onListen(), void onCancel()) : super(onListen, onCancel);
@@ skipping 88 matching lines @@
 }
  void _resume(_) {
 if (_pauseCount > 0) _pauseCount--;
 }
  Future cancel() {
 return new _Future.immediate(null);
 }
  bool get isPaused => _pauseCount > 0;
  Future asFuture([Object value]) => new _Future();
 }
- typedef void __t4<T>(_BufferingStreamSubscription<T> __u5);
- typedef dynamic __t6<T>(_BroadcastSubscription<T> __u7);
+ typedef void __t3<T>(_BufferingStreamSubscription<T> __u4);
+ typedef dynamic __t5<T>(_BroadcastSubscription<T> __u6);