Add debug info the test_controller.js

pkg/unittest/lib/test_controller.js

Index: pkg/unittest/lib/test_controller.js
===================================================================
--- pkg/unittest/lib/test_controller.js	(revision 27419)
+++ pkg/unittest/lib/test_controller.js	(working copy)
@@ -63,6 +63,8 @@
 notifyStart();
 
 function notifyDone() {
+  // TODO(ricow): REMOVE, debug info, see issue 13292
+  dartPrint('Calling notifyDone()');
   if (testRunner) testRunner.notifyDone();
   // To support in browser launching of tests we post back start and result
   // messages to the window.opener.
@@ -73,6 +75,9 @@
 }
 
 function processMessage(msg) {
+  // TODO(ricow): REMOVE, debug info, see issue 13292
+  dartPrint('processMessage(): ' + msg);
+
   if (typeof msg != 'string') return;
   if (msg == 'unittest-suite-done') {
     notifyDone();