Move spaces from before comments to within comments

tests/language_strong/compile_time_constant_r_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.
 
 const x =
-          throw  /// 01: compile-time error
+          throw // /// 01: compile-time error
           "x";
 
 const y = const {0:
-                    throw  /// 02: compile-time error
+                    throw // /// 02: compile-time error
                     "y"};
 
 main() {
   print(x);
   print(y);
   const z =
-            throw  /// 03: compile-time error
+            throw // /// 03: compile-time error
             1+1+1;
   print(z);
 }