[unibrow] remove mongolian vowel separator as white space.

test/mjsunit/whitespaces.js

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 var whitespaces = [
   // WhiteSpace defined in ECMA-262 5.1, 7.2
   0x0009,  // Tab                  TAB
   0x000B,  // Vertical Tab         VT
   0x000C,  // Form Feed            FF
   0x0020,  // Space                SP
   0x00A0,  // No-break space       NBSP
   0xFEFF,  // Byte Order Mark      BOM
 
   // LineTerminator defined in ECMA-262 5.1, 7.3
   0x000A,  // Line Feed            LF
   0x000D,  // Carriage Return      CR
   0x2028,  // Line Separator       LS
   0x2029,  // Paragraph Separator  PS
 
   // Unicode 6.3.0 whitespaces (category 'Zs')
   0x1680,  // Ogham Space Mark
-  0x180E,  // Mongolian Vowel Separator
   0x2000,  // EN QUAD
   0x2001,  // EM QUAD
   0x2002,  // EN SPACE
   0x2003,  // EM SPACE
   0x2004,  // THREE-PER-EM SPACE
   0x2005,  // FOUR-PER-EM SPACE
   0x2006,  // SIX-PER-EM SPACE
   0x2007,  // FIGURE SPACE
   0x2008,  // PUNCTUATION SPACE
   0x2009,  // THIN SPACE
@@ skipping 73 matching lines @@
   test_regexp(c + twobyte);
   test_trim(c, onebyte + "trim");
   test_trim(c, twobyte + "trim");
   test_parseInt(c, onebyte);
   test_parseInt(c, twobyte);
   test_eval(c, onebyte);
   test_eval(c, twobyte);
   test_stringtonumber(c, onebytespace);
   test_stringtonumber(c, twobytespace);
 }