Import intl test suite from v8-i18n project

test/intl/collator/en-sort.js

Index: test/intl/collator/en-sort.js
diff --git a/src/extensions/i18n/header.js b/test/intl/collator/en-sort.js
similarity index 82%
copy from src/extensions/i18n/header.js
copy to test/intl/collator/en-sort.js
index 1c0a2d8874b5aa982ca2be2fb39f2ead1c4a9622..0385d412dd4ab60b46da03b82cc1874294df0139 100644
--- a/src/extensions/i18n/header.js
+++ b/test/intl/collator/en-sort.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.
+// Sort plain English text using defaults.
 
-/**
- * Intl object is a single object that has some named properties,
- * all of which are constructors.
- */
-var Intl = (function() {
+var strings = ['blood', 'bull', 'ascend', 'zed', 'down'];
 
-'use strict';
+var collator = Intl.Collator(['en']);
+var result = strings.sort(collator.compare);
 
-var Intl = {};
+assertEquals('ascend', result[0]);
+assertEquals('blood', result[1]);
+assertEquals('bull', result[2]);
+assertEquals('down', result[3]);
+assertEquals('zed', result[4]);