Fix string whitespace trimming of 0x200b and NEL character.

test/mjsunit/third_party/string-trim.js

 // Copyright (c) 2009 Apple Computer, 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
@@ skipping 45 matching lines @@
   {s : '\u2001', t : 'EM QUAD'},
   {s : '\u2002', t : 'EN SPACE'},
   {s : '\u2003', t : 'EM SPACE'},
   {s : '\u2004', t : 'THREE-PER-EM SPACE'},
   {s : '\u2005', t : 'FOUR-PER-EM SPACE'},
   {s : '\u2006', t : 'SIX-PER-EM SPACE'},
   {s : '\u2007', t : 'FIGURE SPACE'},
   {s : '\u2008', t : 'PUNCTUATION SPACE'},
   {s : '\u2009', t : 'THIN SPACE'},
   {s : '\u200A', t : 'HAIR SPACE'},
-  {s : '\u3000', t : 'IDEOGRAPHIC SPACE'},
   {s : '\u2028', t : 'LINE SEPARATOR'},
   {s : '\u2029', t : 'PARAGRAPH SEPARATOR'},
-  {s : '\u200B', t : 'ZERO WIDTH SPACE (category Cf)'}
+  {s : '\u202F', t : 'NARROW NO-BREAK SPACE'},
+  {s : '\u205F', t : 'MEDIUM MATHEMATICAL SPACE'},
+  {s : '\u3000', t : 'IDEOGRAPHIC SPACE'},
+  {s : '\uFEFF', t : 'BYTE ORDER MARK'}
 ];
 
 for (var i = 0; i < whitespace.length; i++) {
   assertEquals(whitespace[i].s.trim(), '');
   assertEquals(whitespace[i].s.trimLeft(), '');
   assertEquals(whitespace[i].s.trimRight(), '');
   wsString += whitespace[i].s;
 }
 
 trimString      = wsString   + testString + wsString;
@@ skipping 18 matching lines @@
 
 var testValues = [0, Infinity, NaN, true, false, ({}), ['an','array'],
   ({toString:function(){return 'wibble'}})
 ];
 
 for (var i = 0; i < testValues.length; i++) {
   assertEquals(trim.call(testValues[i]), String(testValues[i]));
   assertEquals(trimLeft.call(testValues[i]), String(testValues[i]));
   assertEquals(trimRight.call(testValues[i]), String(testValues[i]));
 }