Move spaces from before comments to within comments

tests/corelib_strong/splay_tree_from_iterable_test.dart

 // Copyright (c) 2011, 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 'dart:collection';
 
 main() {
   defaultFunctionValuesTest();
   defaultKeyFunctionTest();
@@ skipping 129 matching lines @@
 
   Expect.throws(() {
     new SplayTreeMap<String,bool>.fromIterable(<int>[1, 2, 3],
       // No "key" map, defaults to identity, which returns int, not String.
       value: value
     );
   });
 
   Expect.throws(() {
     new SplayTreeMap<String,bool>.fromIterable(<int>[1, 2, 3],
-      key: id as dynamic,     // wrong type.
+      key: id as dynamic, //     wrong type.
       value: value
     );
   });
 
   Expect.throws(() {
     new SplayTreeMap<String,bool>.fromIterable(<int>[1, 2, 3],
       key: key,
-      value: id as dynamic   // wrong type.
+      value: id as dynamic //   wrong type.
     );
   });
 
   // But it works with explicit types when used correctly.
   SplayTreeMap<String, bool> map =
       new SplayTreeMap<String, bool>.fromIterable(<int>[1, 2, 3],
                                                   key: key,
                                                   value: value);
   Iterable<String> keys = map.keys;
   Iterable<bool> values = map.values;
   List<String> keyList = keys.toList();
   List<bool> valueList = values.toList();
   Expect.equals(3, keyList.length);
   Expect.equals(3, valueList.length);
   Expect.equals(keys.first, map.firstKey());
   Expect.equals(keys.last, map.lastKey());
 }