Remove StreamSink(replaced by EventSink) and make IOSink extend EventSink.

sdk/lib/async/stream.dart

Index: sdk/lib/async/stream.dart
diff --git a/sdk/lib/async/stream.dart b/sdk/lib/async/stream.dart
index c1699f0d636b1a22025551fcd36f9d5ccc4f3674..7f0cfa46727da8431fae3fb585fc67484b00fce7 100644
--- a/sdk/lib/async/stream.dart
+++ b/sdk/lib/async/stream.dart
@@ -921,16 +921,6 @@ abstract class StreamSubscription<T> {
 
 
 /**
- * *Deprecated*. Use [EventSink] instead.
- */
-abstract class StreamSink<T> extends EventSink<T>{
-  /* TODO(8997): Remove class.*/
-  /** *Deprecated*. Use [EventSink.addError] instead.*/
-  void signalError(AsyncError errorEvent) { addError(errorEvent); }
-}
-
-
-/**
  * An interface that abstracts creation or handling of [Stream] events.
  */
 abstract class EventSink<T> {
@@ -939,7 +929,7 @@ abstract class EventSink<T> {
   /** Create an async error. */
   void addError(AsyncError errorEvent);
   /** Request a stream to close. */
-  void close();
+  close();

[floitsch, 2013/04/11 12:45:01]

keep.
The EventSink.close should be assumed not to return anything on 'close'.

[Anders Johnsen, 2013/04/11 12:53:05]

Done.

 }
 
 
@@ -965,7 +955,7 @@ class StreamView<T> extends Stream<T> {
 /**
  * [EventSink] wrapper that only exposes the [EventSink] interface.
  */
-class EventSinkView<T> extends StreamSink<T> {
+class EventSinkView<T> extends EventSink<T> {
   // TODO(8997): Implment EventSink instead.
   final EventSink<T> _sink;
 
@@ -1226,7 +1216,7 @@ class _EventTransformStreamSubscription<S, T>
 }
 
 /* TODO(8997): Implement EventSink instead, */

[floitsch, 2013/04/11 12:45:01]

Remove TODO.

[Anders Johnsen, 2013/04/11 12:53:05]

Done.

-class _EventOutputSinkWrapper<T> extends StreamSink<T> {
+class _EventOutputSinkWrapper<T> extends EventSink<T> {
   _EventOutputSink _sink;
   _EventOutputSinkWrapper(this._sink);