Format samples and samples-dev directories.

samples-dev/swarm/test/swarm_ui_lib/observable/change_event_tests.dart

Index: samples-dev/swarm/test/swarm_ui_lib/observable/change_event_tests.dart
diff --git a/samples-dev/swarm/test/swarm_ui_lib/observable/change_event_tests.dart b/samples-dev/swarm/test/swarm_ui_lib/observable/change_event_tests.dart
index 0d255161d04619fd966bddb50b565e83511e8d7e..1819fb6a05d44a12a4b05a4a1602f499df250168 100644
--- a/samples-dev/swarm/test/swarm_ui_lib/observable/change_event_tests.dart
+++ b/samples-dev/swarm/test/swarm_ui_lib/observable/change_event_tests.dart
@@ -9,21 +9,30 @@ testChangeEvent() {
     // create property, list, global and check the proper initialization.
     final target = new AbstractObservable();
 
-    validateUpdate(
-        new ChangeEvent.property(target, 'pK', 33, '12'),
-        target, 'pK', null, 33, '12');
+    validateUpdate(new ChangeEvent.property(target, 'pK', 33, '12'), target,
+        'pK', null, 33, '12');
 
     validateUpdate(
         new ChangeEvent.list(target, ChangeEvent.UPDATE, 3, 33, '12'),
-        target, null, 3, 33, '12');
+        target,
+        null,
+        3,
+        33,
+        '12');
 
     validateInsert(
         new ChangeEvent.list(target, ChangeEvent.INSERT, 3, 33, null),
-        target, null, 3, 33);
+        target,
+        null,
+        3,
+        33);
 
     validateRemove(
         new ChangeEvent.list(target, ChangeEvent.REMOVE, 3, null, '12'),
-        target, null, 3, '12');
+        target,
+        null,
+        3,
+        '12');
 
     validateGlobal(
         new ChangeEvent.list(target, ChangeEvent.GLOBAL, null, null, null),