Format all tests.

tests/corelib/stacktrace_fromstring_test.dart

 // Copyright (c) 2015, 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:expect/expect.dart";
 import "package:async_helper/async_helper.dart";
 import "dart:async";
 
 void main() {
   StackTrace stack;
-  try { throw 0; } catch (e, s) { stack = s; }
+  try {
+    throw 0;
+  } catch (e, s) {
+    stack = s;
+  }
   var string = "$stack";
   StackTrace stringTrace = new StackTrace.fromString(string);
   Expect.isTrue(stringTrace is StackTrace);
   Expect.equals(stack.toString(), stringTrace.toString());
 
   string = "some random string, nothing like a StackTrace";
   stringTrace = new StackTrace.fromString(string);
   Expect.isTrue(stringTrace is StackTrace);
   Expect.equals(string, stringTrace.toString());
 
@@ skipping 10 matching lines @@
     c.stream.listen((v) {
       throw "Unexpected value: $v";
     }, onError: (e, s) {
       Expect.equals(string, s.toString());
       asyncEnd();
     });
     c.addError(0, stringTrace);
     c.close();
   });
 }