Format all tests.

tests/lib_strong/html/hidden_dom_2_test.dart

Index: tests/lib_strong/html/hidden_dom_2_test.dart
diff --git a/tests/lib_strong/html/hidden_dom_2_test.dart b/tests/lib_strong/html/hidden_dom_2_test.dart
index 5e638b11dcb12ea1fd6ddc029b95b35594e99dc8..5d4d05d07f22f2aabeb2ab1f2f7402d41a24ffd9 100644
--- a/tests/lib_strong/html/hidden_dom_2_test.dart
+++ b/tests/lib_strong/html/hidden_dom_2_test.dart
@@ -15,16 +15,19 @@ Hello World!
     Element e2 = new Element.html(r"<div id='xx'>XX</div>");
     expect(e, isNotNull);
 
-    expect(() { confuse(e).appendChild(e2); }, throwsNoSuchMethodError);
-
+    expect(() {
+      confuse(e).appendChild(e2);
+    }, throwsNoSuchMethodError);
   });
 }
 
 class Decoy {
-  void appendChild(x) { throw 'dead code'; }
+  void appendChild(x) {
+    throw 'dead code';
+  }
 }
 
 confuse(x) => opaqueTrue() ? x : (opaqueTrue() ? new Object() : new Decoy());
 
 /** Returns `true`, but in a way that confuses the compiler. */
-opaqueTrue() => true;  // Expand as needed.
+opaqueTrue() => true; // Expand as needed.