Move spaces from before comments to within comments

tests/lib_strong/convert/utf8_encode_test.dart

 // Copyright (c) 2013, 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:convert';
 import 'unicode_tests.dart';
 
 List<int> encode(String str) => new Utf8Encoder().convert(str);
 List<int> encode2(String str) => UTF8.encode(str);
@@ skipping 18 matching lines @@
                     encoder.convert(ascii, 0));
   Expect.listEquals([0x41, 0x42, 0x43, 0x44, 0x45],
                     encoder.convert(ascii, 0, 5));
   Expect.listEquals([0x42, 0x43, 0x44, 0x45],
                     encoder.convert(ascii, 1));
   Expect.listEquals([0x41, 0x42, 0x43, 0x44],
                     encoder.convert(ascii, 0, 4));
   Expect.listEquals([0x42, 0x43, 0x44],
                     encoder.convert(ascii, 1, 4));
 
-  Expect.throws(() => encoder.convert(ascii, -1));    // start < 0.
-  Expect.throws(() => encoder.convert(ascii, 6));     // start > length
+  Expect.throws(() => encoder.convert(ascii, -1)); //    start < 0.
+  Expect.throws(() => encoder.convert(ascii, 6)); //     start > length
   Expect.throws(() => encoder.convert(ascii, 0, -1)); // end < 0
   Expect.throws(() => encoder.convert(ascii, 0, 6));  // end > length

[sra1, 2017/03/21 03:01:09]

fix

   Expect.throws(() => encoder.convert(ascii, 3, 2));  // end < start
 
   var unicode = "\u0081\u0082\u1041\u{10101}";
 
   Expect.listEquals([0xc2, 0x81, 0xc2, 0x82, 0xe1, 0x81, 0x81,
                      0xf0, 0x90, 0x84, 0x81],
                     encoder.convert(unicode));
   Expect.listEquals([0xc2, 0x81, 0xc2, 0x82, 0xe1, 0x81, 0x81,
                      0xf0, 0x90, 0x84, 0x81],
                     encoder.convert(unicode, 0, unicode.length));
   Expect.listEquals([0xc2, 0x82, 0xe1, 0x81, 0x81,
                      0xf0, 0x90, 0x84, 0x81],
                     encoder.convert(unicode, 1));
   Expect.listEquals([0xc2, 0x82, 0xe1, 0x81, 0x81],
                     encoder.convert(unicode, 1, 3));
   // Split in the middle of a surrogate pair.
   Expect.listEquals([0xc2, 0x82, 0xe1, 0x81, 0x81,
                      0xed, 0xa0, 0x80],
                     encoder.convert(unicode, 1, 4));
 }