Log verbose output when testing pub.

pkg/scheduled_test/lib/src/utils.dart

Index: pkg/scheduled_test/lib/src/utils.dart
diff --git a/pkg/scheduled_test/lib/src/utils.dart b/pkg/scheduled_test/lib/src/utils.dart
index 77de0fba4f5187c9f4c47887ffb780d19a7aa7ef..d686ef99022b511ccc980c5c9ff718e63471b8d7 100644
--- a/pkg/scheduled_test/lib/src/utils.dart
+++ b/pkg/scheduled_test/lib/src/utils.dart
@@ -133,7 +133,7 @@ Pair<Stream, StreamCanceller> streamWithCanceller(Stream stream) {
   var subscription = stream.listen((value) {
     if (!controller.isClosed) controller.add(value);
   }, onError: (error) {
-    if (!controller.isClosed) controller.signalError(error);
+    if (!controller.isClosed) controller.addError(error);
   }, onDone: controller.close);
   return new Pair<Stream, StreamCanceller>(controllerStream, controller.close);
 }
@@ -149,8 +149,8 @@ Pair<Stream, Stream> tee(Stream stream) {
     controller1.add(value);
     controller2.add(value);
   }, onError: (error) {
-    controller1.signalError(error);
-    controller2.signalError(error);
+    controller1.addError(error);
+    controller2.addError(error);
   }, onDone: () {
     controller1.close();
     controller2.close();