Synchronize with r15594.

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

Index: test/intl/date-format/parse-MMMdy.js
diff --git a/test/mjsunit/regress/regress-crbug-196583.js b/test/intl/date-format/parse-MMMdy.js
similarity index 68%
copy from test/mjsunit/regress/regress-crbug-196583.js
copy to test/intl/date-format/parse-MMMdy.js
index c486158e22e92d2f73fe3473d822a8f6136aed4b..7136527810e61b65b8ad50c7e8750a6be0fe1718 100644
--- a/test/mjsunit/regress/regress-crbug-196583.js
+++ b/test/intl/date-format/parse-MMMdy.js
@@ -25,28 +25,24 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// Flags: --allow-natives-syntax
+// Testing v8Parse method for date and time pattern.
+// Month is represented as a short name.
 
-var a = 1;
-a.__proto__.f = 1;
-a.__proto__.f = function() { return 1; }
+var dtf = new Intl.DateTimeFormat(['en'],
+                                  {year: 'numeric', month: 'short',
+                                   day: 'numeric'});
 
-// Create some polymorphism.
-function B() {}
-B.prototype = {f: function() { return 2; }};
-var b = new B();
-function C() {}
-C.prototype = {g: "foo", f: function() { return 3; }};
-var c = new C();
+// Make sure we have pattern we expect (may change in the future).
+assertEquals('MMM d, y', dtf.resolved.pattern);
 
-function crash(obj) {
-  return obj.f();
-}
+assertEquals('Sat May 04 1974 00:00:00 GMT-0007 (PDT)',
+             usePDT(String(dtf.v8Parse('May 4, 1974'))));
 
-for (var i = 0; i < 2; i++) {
-  crash(a);
-  crash(b);
-  crash(c);
-}
-%OptimizeFunctionOnNextCall(crash);
-assertEquals(1, crash(a));
+// Missing , in the pattern.
+assertEquals(undefined, dtf.v8Parse('May 4 1974'));
+
+// Extra "th" after 4 in the pattern.
+assertEquals(undefined, dtf.v8Parse('May 4th, 1974'));
+
+// Wrong pattern.
+assertEquals(undefined, dtf.v8Parse('5/4/1974'));