Revert "Fixing timezone issues with date-time/parse-* tests."

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

 // Copyright 2013 the V8 project authors. All rights reserved.
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 // modification, are permitted provided that the following conditions are
 // met:
 //
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 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 // Testing v8Parse method for date only.
 
-function checkDate(date) {
-  assertEquals(1974, date.getFullYear());
-  assertEquals(1, date.getMonth());
-  assertEquals(4, date.getDate());
-}
-
-var dtf = new Intl.DateTimeFormat(['en'], {timeZone: 'America/Los_Angeles'});
+var dtf = new Intl.DateTimeFormat(['en']);
 
 // Make sure we have pattern we expect (may change in the future).
 assertEquals('M/d/y', dtf.resolved.pattern);
 
-checkDate(dtf.v8Parse('2/4/74'));
-checkDate(dtf.v8Parse('02/04/74'));
-checkDate(dtf.v8Parse('2/04/74'));
-checkDate(dtf.v8Parse('02/4/74'));
-checkDate(dtf.v8Parse('2/4/1974'));
-checkDate(dtf.v8Parse('02/4/1974'));
-checkDate(dtf.v8Parse('2/04/1974'));
-checkDate(dtf.v8Parse('02/04/1974'));
+assertEquals('Sat May 04 1974 00:00:00 GMT-0007 (PDT)',
+             usePDT(String(dtf.v8Parse('5/4/74'))));
+assertEquals('Sat May 04 1974 00:00:00 GMT-0007 (PDT)',
+             usePDT(String(dtf.v8Parse('05/04/74'))));
+assertEquals('Sat May 04 1974 00:00:00 GMT-0007 (PDT)',
+             usePDT(String(dtf.v8Parse('5/04/74'))));
+assertEquals('Sat May 04 1974 00:00:00 GMT-0007 (PDT)',
+             usePDT(String(dtf.v8Parse('5/4/1974'))));
 
-// Month is numeric, so it fails on "Feb".
-assertEquals(undefined, dtf.v8Parse('Feb 4th 1974'));
+// Month is numeric, so it fails on "May".
+assertEquals(undefined, dtf.v8Parse('May 4th 1974'));
+
+// Time is ignored from the input, since the pattern doesn't have it.
+assertEquals('Sat May 04 1974 00:00:00 GMT-0007 (PDT)',
+             usePDT(String(dtf.v8Parse('5/4/74 12:30:12'))));