Format all tests.

tests/isolate/issue_24243_child2_isolate.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 'dart:isolate';
 
 main(List<String> args, message) {
   var sendPort = message;
   try {
-    var map0 = <int, String>{1:'one', 2:'two', 3:'three'};
-    var map1 = <int, String>{4:'four', 5:'five', 6:'six'};
-    var map2 = <int, String>{7:'seven', 8:'eight', 9:'nine'};
-    var map = new Map<int, Map<int, String>>.from({0:map0, 1:map1, 2:map2});
+    var map0 = <int, String>{1: 'one', 2: 'two', 3: 'three'};
+    var map1 = <int, String>{4: 'four', 5: 'five', 6: 'six'};
+    var map2 = <int, String>{7: 'seven', 8: 'eight', 9: 'nine'};
+    var map = new Map<int, Map<int, String>>.from({0: map0, 1: map1, 2: map2});
     sendPort.send(map);
-  } catch(error) {
+  } catch (error) {
     sendPort.send("Invalid Argument(s).");
   }
 }