Removed IllegalAccessException and UnsupportedOperationException.

lib/compiler/implementation/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:uri");
 
 /**
  * Called by the compiler to support switching
@@ skipping 88 matching lines @@
 patch ReceivePort get port {
   if (_lazyPort == null) {
     _lazyPort = new ReceivePort();
   }
   return _lazyPort;
 }
 
 patch SendPort spawnFunction(void topLevelFunction()) {
   final name = _IsolateNatives._getJSFunctionName(topLevelFunction);
   if (name == null) {
-    throw new UnsupportedOperationException(
+    throw new UnsupportedError(
         "only top-level functions can be spawned.");
   }
   return _IsolateNatives._spawn(name, null, false);
 }
 
 patch SendPort spawnUri(String uri) {
   return _IsolateNatives._spawn(null, uri, false);
 }
 
 /** State associated with the current manager. See [globalState]. */
@@ skipping 434 matching lines @@
           'uri': uri,
           'replyPort': replyPort}));
     } else {
       _spawnWorker(functionName, uri, replyPort);
     }
   }
 
   static SendPort _startNonWorker(
       String functionName, String uri, SendPort replyPort) {
     // TODO(eub): support IE9 using an iframe -- Dart issue 1702.
-    if (uri != null) throw new UnsupportedOperationException(
+    if (uri != null) throw new UnsupportedError(
             "Currently spawnUri is not supported without web workers.");
     _globalState.topEventLoop.enqueue(new _IsolateContext(), function() {
       final func = _getJSFunctionFromName(functionName);
       _startIsolate(func, replyPort);
     }, 'nonworker start');
   }
 
   static void _startIsolate(Function topLevel, SendPort replyTo) {
     _fillStatics(_globalState.currentContext);
     _lazyPort = new ReceivePort();
@@ skipping 705 matching lines @@
       _window.clearTimeout(_handle);
     } else {
       _window.clearInterval(_handle);
     }
   }
 }
 
 Timer _timerFactory(int millis, void callback(Timer timer), bool repeating) =>
   repeating ? new _Timer.repeating(millis, callback)
             : new _Timer(millis, callback);