Make methods on isolate external.

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;
 
 patch class ReceivePort {
   /* patch */ factory ReceivePort() = _ReceivePortImpl;
 
   /* patch */ factory ReceivePort.fromRawReceivePort(RawReceivePort rawPort) =
@@ skipping 256 matching lines @@
     return completer.future;
   }
 
   static final RawReceivePort _self = _mainPort;
   static RawReceivePort get _mainPort native "Isolate_mainPort";
 
   static SendPort _spawnFunction(Function topLevelFunction)
       native "Isolate_spawnFunction";
 
   static SendPort _spawnUri(String uri) native "Isolate_spawnUri";
+
+  /* patch */ void _pause(Capability resumeCapability) {
+    throw new UnsupportedError("pause");
+  }
+
+  /* patch */ void resume(Capability resumeCapability) {
+    throw new UnsupportedError("resume");
+  }
+
+  /* patch */ void addOnExitListener(SendPort responsePort) {
+    throw new UnsupportedError("addOnExitListener");
+  }
+
+  /* patch */ void removeOnExitListener(SendPort responsePort) {
+    throw new UnsupportedError("removeOnExitListener");
+  }
+
+  /* patch */ void setErrorsFatal(bool errorsAreFatal) {
+    throw new UnsupportedError("setErrorsFatal");
+  }
+
+  /* patch */ void kill([int priority = BEFORE_NEXT_EVENT]) {
+    throw new UnsupportedError("kill");
+  }
+
+  /* patch */ void ping(SendPort responsePort, [int pingType = IMMEDIATE]) {
+    throw new UnsupportedError("ping");
+  }
+
+  /* patch */ void addErrorListener(SendPort port) {
+    throw new UnsupportedError("addErrorListener");
+  }
+
+  /* patch */ void removeErrorListener(SendPort port) {
+    throw new UnsupportedError("removeErrorListener");
+  }
 }