Synchronize with r15594.

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

Index: test/intl/date-format/default-locale.js
diff --git a/src/hydrogen-sce.h b/test/intl/date-format/default-locale.js
similarity index 75%
copy from src/hydrogen-sce.h
copy to test/intl/date-format/default-locale.js
index 55e153e0ed5ee3481669ee5c991f81238d51176e..2dcb0f8ae7463832d1d08c4ebe617718cd4454b4 100644
--- a/src/hydrogen-sce.h
+++ b/test/intl/date-format/default-locale.js
@@ -25,24 +25,20 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-#ifndef V8_HYDROGEN_SCE_H_
-#define V8_HYDROGEN_SCE_H_
+// Constructing DateTimeFormat with no locale arguments or with []
+// creates one with default locale.
 
-#include "hydrogen.h"
+var dtf = new Intl.DateTimeFormat([]);
 
-namespace v8 {
-namespace internal {
+var options = dtf.resolvedOptions();
 
+// Check it's none of these first.
+assertFalse(options.locale === 'und');
+assertFalse(options.locale === '');
+assertFalse(options.locale === undefined);
 
-class HStackCheckEliminationPhase : public HPhase {
- public:
-  explicit HStackCheckEliminationPhase(HGraph* graph)
-      : HPhase("H_Stack check elimination", graph) { }
+// Then check for equality.
+assertEquals(options.locale, getDefaultLocale());
 
-  void Run();
-};
-
-
-} }  // namespace v8::internal
-
-#endif  // V8_HYDROGEN_SCE_H_
+var dtfNone = new Intl.DateTimeFormat();
+assertEquals(options.locale, dtfNone.resolvedOptions().locale);