Move spaces from before comments to within comments

tests/language/main_test.dart

 // Copyright (c) 2014, 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.
 
 main(
 
-a         /// 01: ok
-a, b      /// 02: ok
-a, b, c   /// 03: static type warning, runtime error
+a //        /// 01: ok
+a, b //     /// 02: ok
+a, b, c //  /// 03: static type warning, runtime error
 a, b, {c} /// 04: ok
 a, b, [c] /// 05: ok
 
-[a]       /// 20: ok
-a, [b]    /// 21: ok
-[a, b]    /// 22: ok
+[a] //      /// 20: ok
+a, [b] //   /// 21: ok
+[a, b] //   /// 22: ok
 
-{a}       /// 41: ok
-a, {b}    /// 42: ok
-{a, b}    /// 43: ok
+{a} //      /// 41: ok
+a, {b} //   /// 42: ok
+{a, b} //   /// 43: ok
 [a, b, c] /// 44: ok
 {a, b, c} /// 45: ok
 
 ) {
 }