Format all tests.

tests/lib/async/stack_trace02_test.dart

Index: tests/lib/async/stack_trace02_test.dart
diff --git a/tests/lib/async/stack_trace02_test.dart b/tests/lib/async/stack_trace02_test.dart
index 19f5d76a34190bf829dba82873fd5ca57c3bc9a4..2932a2e4b2d467ad69f8086260c53606c18cbf17 100644
--- a/tests/lib/async/stack_trace02_test.dart
+++ b/tests/lib/async/stack_trace02_test.dart
@@ -9,7 +9,9 @@ import 'dart:async';
 main() {
   StackTrace trace;
   asyncStart();
-  var f = new Future(() { throw "foo"; });
+  var f = new Future(() {
+    throw "foo";
+  });
   f.catchError((e, st) {
     Expect.equals("foo", e);
     Expect.isNotNull(st);