Fix RegExp white-space character class to match BOMs.

test/mjsunit/regexp.js

 // Copyright 2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 109 matching lines @@
 assertFalse(re.test("_"));
 
 re = /^[\c$]$/;  // Other characters are interpreted literally.
 assertFalse(re.test("\x04"));
 assertTrue(re.test("\\"));
 assertTrue(re.test("c"));
 assertTrue(re.test("$"));
 
 assertTrue(/^[Z-\c-e]*$/.test("Z[\\cde"));
 
+// Test that we handle \s and \S correctly on special Unicode characters.
+re = /\s/;
+assertTrue(re.test("\u2028"));
+assertTrue(re.test("\u2029"));
+assertTrue(re.test("\uFEFF"));
+
+re = /\S/;
+assertFalse(re.test("\u2028"));
+assertFalse(re.test("\u2029"));
+assertFalse(re.test("\uFEFF"));
+
 // Test that we handle \s and \S correctly inside some bizarre
 // character classes.
 re = /[\s-:]/;
 assertTrue(re.test('-'));
 assertTrue(re.test(':'));
 assertTrue(re.test(' '));
 assertTrue(re.test('\t'));
 assertTrue(re.test('\n'));
 assertFalse(re.test('a'));
 assertFalse(re.test('Z'));
@@ skipping 543 matching lines @@
 // Syntax extension relative to ES5, for matching JSC (and ES3).
 // Shouldn't throw.
 re = RegExp("(?=x)*");
 re = RegExp("(?!x)*");
 
 // Should throw. Shouldn't hit asserts in debug mode.
 assertThrows("RegExp('(*)')");
 assertThrows("RegExp('(?:*)')");
 assertThrows("RegExp('(?=*)')");
 assertThrows("RegExp('(?!*)')");