Import intl test suite from v8-i18n project

test/intl/date-format/format-is-bound.js

Index: test/intl/date-format/format-is-bound.js
diff --git a/src/extensions/i18n/header.js b/test/intl/date-format/format-is-bound.js
similarity index 81%
copy from src/extensions/i18n/header.js
copy to test/intl/date-format/format-is-bound.js
index 1c0a2d8874b5aa982ca2be2fb39f2ead1c4a9622..35bb57a22517eb42aef3f229bb0a4b4307185ab4 100644
--- a/src/extensions/i18n/header.js
+++ b/test/intl/date-format/format-is-bound.js
@@ -26,16 +26,15 @@
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 // limitations under the License.
 
-// ECMAScript 402 API implementation is broken into separate files for
-// each service. The build system combines them together into one
-// Intl namespace.
+// Create default DateTimeFormat.
+var dtf = new Intl.DateTimeFormat();
 
-/**
- * Intl object is a single object that has some named properties,
- * all of which are constructors.
- */
-var Intl = (function() {
+// Array we want to iterate, actual dates are not important.
+var dateArray = [Date.now(), Date.now(), Date.now()];
 
-'use strict';
+// It shouldn't throw.
+// The format() method should be properly bound to the dtf object.
+dateArray.forEach(dtf.format);
 
-var Intl = {};
+// Formatting a date should work in a direct call.
+dtf.format();