Spelling fixes e to i.

tests/corelib/regexp/unicode-handling_test.dart

 // Copyright (c) 2014, the Dart project authors. All rights reserved.
 // Copyright 2013 the V8 project authors. All rights reserved.
 // Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions
 // are met:
 // 1.  Redistributions of source code must retain the above copyright
 //     notice, this list of conditions and the following disclaimer.
 // 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 11 matching lines @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 import 'v8_regexp_utils.dart';
 import 'package:expect/expect.dart';
 
 void main() {
   description(
       'Test for proper handling of Unicode RegExps and <a href="http://bugzilla.webkit.org/show_bug.cgi?id=7445">bug 7445</a>: Gmail puts wrong subject in replies.');
 
-  // Regex to match Re in various languanges straight from Gmail source
+  // Regex to match Re in various languages straight from Gmail source
   var I3 = new RegExp(
       r"^\s*(fwd|re|aw|antw|antwort|wg|sv|ang|odp|betreff|betr|transf|reenv\.|reenv|in|res|resp|resp\.|enc|\u8f6c\u53d1|\u56DE\u590D|\u041F\u0435\u0440\u0435\u0441\u043B|\u041E\u0442\u0432\u0435\u0442):\s*(.*)$",
       caseSensitive: false);
 
   // Other RegExs from Gmail source
   var Ci = new RegExp(r"\s+");
   var BC = new RegExp(r"^ ");
   var BG = new RegExp(r" $");
 
   // This function replaces consecutive whitespace with a single space
@@ skipping 23 matching lines @@
   var inlineRe = new RegExp(r".m\u2820p");
   assertEquals(inlineRe.firstMatch(sample).group(0), 'bm\u2820p');
 
   // Test handling of \u007c "|"
   var bsample = "sample bm\u007cp cm\\u007cp";
 
   var binlineRe = new RegExp(r".m\u007cp");
 
   assertEquals(binlineRe.firstMatch(bsample).group(0), 'bm|p');
 }