Reenable tests that need to access the default timezone.

test/intl/break-iterator/default-locale.js

 // Copyright 2013 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 20 matching lines @@
 var iterator = new Intl.v8BreakIterator([]);
 
 var options = iterator.resolvedOptions();
 
 // Check it's none of these first.
 assertFalse(options.locale === 'und');
 assertFalse(options.locale === '');
 assertFalse(options.locale === undefined);
 
 // Then check for equality.
-assertEquals(options.locale, getDefaultLocale());
+assertEquals(options.locale, %GetDefaultICULocale());
 
 var iteratorNone = new Intl.v8BreakIterator();
 assertEquals(options.locale, iteratorNone.resolvedOptions().locale);
 
 // TODO(cira): remove support for {} to mean empty list.
 var iteratorBraket = new Intl.v8BreakIterator({});
 assertEquals(options.locale, iteratorBraket.resolvedOptions().locale);