Renamed StreamSink to EventSink. Renamed signalError to addError.

tests/lib/async/stream_controller_test.dart

 // Copyright (c) 2011, 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.
 
 // Test the basic StreamController and StreamController.singleSubscription.
 library stream_controller_test;
 
 import 'dart:async';
 import 'event_helper.dart';
 
@@ skipping 76 matching lines @@
   sentEvents.replay(c);
   Expect.listEquals(expectedEvents.events, actualEvents.events);
 
   // Test transform.
   c = new StreamController.broadcast();
   sentEvents = new Events()..add("a")..error(42)..add("b")..close();
   expectedEvents =
       new Events()..error("a")..add(42)..error("b")..add("foo")..close();
   actualEvents = new Events.capture(c.stream.transform(
       new StreamTransformer(
-          handleData: (v, s) { s.signalError(new AsyncError(v)); },
+          handleData: (v, s) { s.addError(new AsyncError(v)); },
           handleError: (e, s) { s.add(e.error); },
           handleDone: (s) {
             s.add("foo");
             s.close();
           })));
   sentEvents.replay(c);
   Expect.listEquals(expectedEvents.events, actualEvents.events);
 
   // Test multiple filters.
   c = new StreamController.broadcast();
@@ skipping 168 matching lines @@
     sentEvents.replay(c);
   }
 
   // Test transform.
   c = new StreamController();
   sentEvents = new Events()..add("a")..error(42)..add("b")..close();
   expectedEvents =
       new Events()..error("a")..add(42)..error("b")..add("foo")..close();
   actualEvents = new Events.capture(c.stream.transform(
       new StreamTransformer(
-          handleData: (v, s) { s.signalError(new AsyncError(v)); },
+          handleData: (v, s) { s.addError(new AsyncError(v)); },
           handleError: (e, s) { s.add(e.error); },
           handleDone: (s) {
             s.add("foo");
             s.close();
           })));
   sentEvents.replay(c);
   Expect.listEquals(expectedEvents.events, actualEvents.events);
 
   // Test multiple filters.
   c = new StreamController();
@@ skipping 94 matching lines @@
   sentEvents.replay(c);
   Expect.listEquals(expectedEvents.events, actualEvents.events);
 }
 
 testClosed() {
   for (StreamController c in [new StreamController(),
                               new StreamController.broadcast()]) {
     Expect.isFalse(c.isClosed);
     c.add(42);
     Expect.isFalse(c.isClosed);
-    c.signalError("bad");
+    c.addError("bad");
     Expect.isFalse(c.isClosed);
     c.close();
     Expect.isTrue(c.isClosed);
   }
 }
 
 main() {
   testMultiController();
   testSingleController();
   testExtraMethods();
   testClosed();
 }