Print the actual error message on failure in the ProcessStartException test.

tests/standalone/src/io/ProcessStartExceptionTest.dart

Index: tests/standalone/src/io/ProcessStartExceptionTest.dart
diff --git a/tests/standalone/src/io/ProcessStartExceptionTest.dart b/tests/standalone/src/io/ProcessStartExceptionTest.dart
index aa7de7f3ee9fdf4167b1340a1dac79b40c4d55df..12608b6b7859921173ae5b7b251616444912eef6 100644
--- a/tests/standalone/src/io/ProcessStartExceptionTest.dart
+++ b/tests/standalone/src/io/ProcessStartExceptionTest.dart
@@ -18,7 +18,7 @@ class ProcessStartExceptionTest {
     };
 
     process.onError = (ProcessException e) {
-      Expect.equals(2, e.errorCode);
+      Expect.equals(2, e.errorCode, '$e');

[Ivan Posva, 2012/03/26 16:48:18]

What's wrong with using e.toString() or e.message?

[Mads Ager (google), 2012/03/26 16:52:01]

Absolutely nothing. :) The string interpolation was nice and short. I'll commit
with e.toString().

     };
   }
 }