Import intl test suite from v8-i18n project

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

 // Copyright 2013 the V8 project authors. All rights reserved.
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 //
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 // limitations under the License.
 
-#ifndef V8_EXTENSIONS_I18N_I18N_EXTENSION_H_
-#define V8_EXTENSIONS_I18N_I18N_EXTENSION_H_
+// Test formatting method with specified date, invalid input.
 
-#include "v8.h"
+var dtf = new Intl.DateTimeFormat('en-US', {timeZone: 'UTC'});
 
-namespace v8_i18n {
+var someDate = dtf.format(144313200000);
+assertEquals('7/29/1974', someDate);
 
-class Extension : public v8::Extension {
- public:
-  Extension();
+var invalidValues = [NaN, Infinity, -Infinity];
+invalidValues.forEach(function(value) {
+  var error;
+  try {
+    dtf.format(value);
+  } catch (e) {
+    error = e;
+  }
 
-  virtual v8::Handle<v8::FunctionTemplate> GetNativeFunction(
-      v8::Handle<v8::String> name);
-
-  static void Register();
-
- private:
-  static Extension* extension_;
-};
-
-}  // namespace v8_i18n
-
-#endif  // V8_EXTENSIONS_I18N_I18N_EXTENSION_H_
+  assertTrue(error !== undefined);
+  assertEquals('RangeError', error.name);
+});