Add errorsAreFatal, onExit and onError parameters to the spawn functions.

runtime/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.
 
 import "dart:collection" show HashMap;
 import "dart:_internal";
 
 patch class ReceivePort {
   /* patch */ factory ReceivePort() = _ReceivePortImpl;
 
@@ skipping 256 matching lines @@
   // Make sure the message handler is triggered.
   port.sendPort.send(null);
 }
 
 patch class Isolate {
   static final _currentIsolate = _getCurrentIsolate();
 
   /* patch */ static Isolate get current => _currentIsolate;
 
   /* patch */ static Future<Isolate> spawn(
-      void entryPoint(message), var message, { bool paused: false }) {
+      void entryPoint(message), var message,
+      {bool paused: false, bool errorsAreFatal,
+       SendPort onExit, SendPort onError}) {
     // `paused` isn't handled yet.
     RawReceivePort readyPort;
     try {
       // The VM will invoke [_startIsolate] with entryPoint as argument.
       readyPort = new RawReceivePort();
       _spawnFunction(readyPort.sendPort, entryPoint, message, paused);
       Completer completer = new Completer<Isolate>.sync();
       readyPort.handler = (readyMessage) {
         readyPort.close();
         assert(readyMessage is List);
         assert(readyMessage.length == 2);
         SendPort controlPort = readyMessage[0];
         List capabilities = readyMessage[1];
         completer.complete(new Isolate(controlPort,
                                        pauseCapability: capabilities[0],
                                        terminateCapability: capabilities[1]));
       };
       return completer.future;
     } catch (e, st) {
       if (readyPort != null) {
         readyPort.close();
       }
       return new Future<Isolate>.error(e, st);
     };
   }
 
   /* patch */ static Future<Isolate> spawnUri(
       Uri uri, List<String> args, var message,
-      { bool paused: false, bool checked, Uri packageRoot }) {
+      {bool paused: false, bool checked, Uri packageRoot, bool errorsAreFatal,
+       SendPort onExit, SendPort onError}) {
     RawReceivePort readyPort;
     try {
       // The VM will invoke [_startIsolate] and not `main`.
       readyPort = new RawReceivePort();
       var packageRootString =
           (packageRoot == null) ? null : packageRoot.toString();
       _spawnUri(readyPort.sendPort, uri.toString(), args, message,
                 paused, checked, packageRootString);
       Completer completer = new Completer<Isolate>.sync();
       readyPort.handler = (readyMessage) {
@@ skipping 125 matching lines @@
   static Isolate _getCurrentIsolate() {
     List portAndCapabilities = _getPortAndCapabilitiesOfCurrentIsolate();
     return new Isolate(portAndCapabilities[0],
                        pauseCapability: portAndCapabilities[1],
                        terminateCapability: portAndCapabilities[2]);
   }
 
   static List _getPortAndCapabilitiesOfCurrentIsolate()
       native "Isolate_getPortAndCapabilitiesOfCurrentIsolate";
 }