Rename blahHandler to onBlah throughout dart:io.

tests/standalone/src/ProcessExitTest.dart

Index: tests/standalone/src/ProcessExitTest.dart
diff --git a/tests/standalone/src/ProcessExitTest.dart b/tests/standalone/src/ProcessExitTest.dart
index 7e56b7863c677d4af61272f0b747ed98daf0ef20..4078cd296e2a52fe95a3b743517e56d79320ef32 100644
--- a/tests/standalone/src/ProcessExitTest.dart
+++ b/tests/standalone/src/ProcessExitTest.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
+// 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.
 //
@@ -13,7 +13,7 @@ class ProcessExitTest {
     Process process = new Process.start(getProcessTestFileName(),
                                         const ["0", "0", "99", "0"]);
 
-    process.exitHandler = (int exitCode) {
+    process.onExit = (int exitCode) {
       Expect.equals(exitCode, 99);
       process.close();
     };