Format all tests.

tests/lib/async/catch_errors12_test.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 import 'package:async_helper/async_helper.dart';
 import "package:expect/expect.dart";
 import 'dart:async';
 import 'catch_errors.dart';
 
 main() {
   asyncStart();
   Completer done = new Completer();
 
   var events = [];
   // Tests that errors that have been delayed by several milliseconds with
   // Timers are still caught by `catchErrors`.
   catchErrors(() {
     events.add("catch error entry");
-    Timer.run(() { throw "timer error"; });
-    new Timer(const Duration(milliseconds: 100), () { throw "timer2 error"; });
+    Timer.run(() {
+      throw "timer error";
+    });
+    new Timer(const Duration(milliseconds: 100), () {
+      throw "timer2 error";
+    });
     new Future.value(499).then((x) {
       new Timer(const Duration(milliseconds: 200), () {
         done.complete(499);
         throw x;
       });
     });
     throw "catch error";
   }).listen((x) {
-      events.add(x);
-    },
-    onDone: () { Expect.fail("Unexpected callback"); });
+    events.add(x);
+  }, onDone: () {
+    Expect.fail("Unexpected callback");
+  });
   done.future.whenComplete(() {
     // Give time to execute the callbacks.
     Timer.run(() {
       Expect.listEquals([
-            "catch error entry",
-            "main exit",
-            "catch error",
-            "timer error",
-            "timer2 error",
-            499,
-          ],
-          events);
+        "catch error entry",
+        "main exit",
+        "catch error",
+        "timer error",
+        "timer2 error",
+        499,
+      ], events);
       asyncEnd();
     });
   });
   events.add("main exit");
 }