Import intl test suite from v8-i18n project

test/intl/date-format/default-locale.js

Index: test/intl/date-format/default-locale.js
diff --git a/src/extensions/i18n/i18n-extension.h b/test/intl/date-format/default-locale.js
similarity index 76%
copy from src/extensions/i18n/i18n-extension.h
copy to test/intl/date-format/default-locale.js
index 050c336a67a21fd6cb32892e14215cac11971111..cc129acfef50cb7ae164f852f599523c96310133 100644
--- a/src/extensions/i18n/i18n-extension.h
+++ b/test/intl/date-format/default-locale.js
@@ -26,26 +26,20 @@
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 // limitations under the License.
 
-#ifndef V8_EXTENSIONS_I18N_I18N_EXTENSION_H_
-#define V8_EXTENSIONS_I18N_I18N_EXTENSION_H_
+// Constructing DateTimeFormat with no locale arguments or with []
+// creates one with default locale.
 
-#include "v8.h"
+var dtf = new Intl.DateTimeFormat([]);
 
-namespace v8_i18n {
+var options = dtf.resolvedOptions();
 
-class Extension : public v8::Extension {
- public:
-  Extension();
+// Check it's none of these first.
+assertFalse(options.locale === 'und');
+assertFalse(options.locale === '');
+assertFalse(options.locale === undefined);
 
-  virtual v8::Handle<v8::FunctionTemplate> GetNativeFunction(
-      v8::Handle<v8::String> name);
+// Then check for equality.
+assertEquals(options.locale, getDefaultLocale());
 
-  static void Register();
-
- private:
-  static Extension* extension_;
-};
-
-}  // namespace v8_i18n
-
-#endif  // V8_EXTENSIONS_I18N_I18N_EXTENSION_H_
+var dtfNone = new Intl.DateTimeFormat();
+assertEquals(options.locale, dtfNone.resolvedOptions().locale);