Update JS whitespace definition for changes in Unicode 6.3

https://bugs.webkit.org/show_bug.cgi?id=127450
<rdar://15863457>

Reviewed by Oliver Hunt.

Covered by existing tests when running against a Unicode back-end that supports
Unicode 6.3 or higher.

* runtime/JSGlobalObjectFunctions.cpp: (JSC::isStrWhiteSpace): Explicitly allow
U+180E MONGOLIAN VOWEL SEPARATOR, because we need to keep recognizing all characters
that used to be whitespace.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@162575 268f45cc-cd09-0410-ab3c-d52691b4dbfc

Source/JavaScriptCore/ChangeLog

+2014-01-22  Alexey Proskuryakov  <ap@apple.com>
+
+        Update JS whitespace definition for changes in Unicode 6.3
+        https://bugs.webkit.org/show_bug.cgi?id=127450
+        <rdar://15863457>
+
+        Reviewed by Oliver Hunt.
+
+        Covered by existing tests when running against a Unicode back-end that supports
+        Unicode 6.3 or higher.
+
+        * runtime/JSGlobalObjectFunctions.cpp: (JSC::isStrWhiteSpace): Explicitly allow
+        U+180E MONGOLIAN VOWEL SEPARATOR, because we need to keep recognizing all characters
+        that used to be whitespace.
+
 2014-01-21  Mark Hahnenberg  <mhahnenberg@apple.com>
 
         Registers used in writeBarrierOnOperand can cause clobbering on some platforms

Source/JavaScriptCore/runtime/JSGlobalObjectFunctions.cpp

@@ -164,6 +164,7 @@ bool isStrWhiteSpace(UChar c)
         case 0x000D:
         case 0x0020:
         case 0x00A0:
+        case 0x180E: // This character used to be in Zs category before Unicode 6.3, and EcmaScript says that we should keep treating it as such.
         case 0x2028:
         case 0x2029:
         case 0xFEFF: