Update Isolate API.

sdk/lib/_internal/compiler/js_lib/isolate_patch.dart

 // Copyright (c) 2012, 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.
 
 // Patch file for the dart:isolate library.
 
 import 'dart:_js_helper' show patch;
 import 'dart:_isolate_helper' show CapabilityImpl,
                                    CloseToken,
                                    IsolateNatives,
@@ skipping 58 matching lines @@
 
   @patch
   void resume(Capability resumeCapability) {
     var message = new List(2)
         ..[0] = "resume"
         ..[1] = resumeCapability;
     controlPort.send(message);
   }
 
   @patch
-  void addOnExitListener(SendPort responsePort) {
+  void addOnExitListener(SendPort responsePort, {Object response}) {
     // TODO(lrn): Can we have an internal method that checks if the receiving
     // isolate of a SendPort is still alive?
-    var message = new List(2)
+    var message = new List(3)
         ..[0] = "add-ondone"
-        ..[1] = responsePort;
+        ..[1] = responsePort
+        ..[2] = response;
     controlPort.send(message);
   }
 
   @patch
   void removeOnExitListener(SendPort responsePort) {
     var message = new List(2)
         ..[0] = "remove-ondone"
         ..[1] = responsePort;
     controlPort.send(message);
   }
 
   @patch
   void setErrorsFatal(bool errorsAreFatal) {
     var message = new List(3)
         ..[0] = "set-errors-fatal"
         ..[1] = terminateCapability
         ..[2] = errorsAreFatal;
     controlPort.send(message);
   }
 
   @patch
-  void kill([int priority = BEFORE_NEXT_EVENT]) {
+  void kill({int priority: BEFORE_NEXT_EVENT}) {
     controlPort.send(["kill", terminateCapability, priority]);
   }
 
   @patch
-  void ping(SendPort responsePort, [int pingType = IMMEDIATE]) {
-    var message = new List(3)
+  void ping(SendPort responsePort, {Object response,
+                                    int priority: IMMEDIATE}) {
+    var message = new List(4)
         ..[0] = "ping"
         ..[1] = responsePort
-        ..[2] = pingType;
+        ..[2] = priority
+        ..[3] = response;
     controlPort.send(message);
   }
 
   @patch
   void addErrorListener(SendPort port) {
     var message = new List(2)
         ..[0] = "getErrors"
         ..[1] = port;
     controlPort.send(message);
   }
@@ skipping 25 matching lines @@
   factory RawReceivePort([void handler(event)]) {
     return new RawReceivePortImpl(handler);
   }
 }
 
 @patch
 class Capability {
   @patch
   factory Capability() = CapabilityImpl;
 }