Migration of testing scripts in tools/ to libv2

tools/testing/dart/drt_updater.dart

Index: tools/testing/dart/drt_updater.dart
diff --git a/tools/testing/dart/drt_updater.dart b/tools/testing/dart/drt_updater.dart
index e6645dfda2aaebbc99b8349c5966d6f9dcd1fb73..10d758abfcb7a2d61ee24e03a05532fbe6f3cd19 100644
--- a/tools/testing/dart/drt_updater.dart
+++ b/tools/testing/dart/drt_updater.dart
@@ -4,6 +4,7 @@
 
 library drt_updater;
 
+import "dart:async";
 import "dart:io";
 
 import "test_suite.dart";
@@ -27,7 +28,7 @@ class _DartiumUpdater {
       print('Updating $name.');
       onUpdated = [() {updated = true;} ];
       _updatingProcess = Process.run('python', _getUpdateCommand);
-      _updatingProcess.handleException((e) {
+      _updatingProcess.catchError((e) {
         print("Error starting $script process: $e");
         return false;
       });

[Bill Hesse, 2013/01/09 17:06:33]

Need to use the return value of catchError, not the receiver, in future uses. 
In this case, .then(_onUpdatedHandler) will call the handler
and throw an exception, because there is no error catcher on the original
future.

There may be a lot of places where this pattern is used, and needs to be
changed.

[kustermann, 2013/01/09 18:02:25]

Done.