Parsing dates with format that's just month or day will fail on certain days

pkg/intl/lib/date_format_helpers.dart

Index: pkg/intl/lib/date_format_helpers.dart
===================================================================
--- pkg/intl/lib/date_format_helpers.dart	(revision 11626)
+++ pkg/intl/lib/date_format_helpers.dart	(working copy)
@@ -29,14 +29,14 @@
 
   /**
    * Return a date built using our values. If no date portion is set,
-   * use today's date, as otherwise the constructor will fail.
+   * use the "Epoch" (January 1, 1970), since the constructor will fail if

[Anton Muhin, 2012/08/30 17:44:03]

nit: I think "since the constructor..." can be omitted as it's an implementation
detail.

[Alan Knight, 2012/08/30 17:50:40]

Done.

+   * given zero values for those fields.
    */
   Date asDate() {
     if (year == 0 || month == 0 || day == 0) {
-      var today = new Date.now();
-      if (year == 0) year = today.year;
-      if (month == 0) month = today.month;
-      if (day == 0) day = today.day;
+      if (year == 0) year = 1970;

[Anton Muhin, 2012/08/30 17:44:03]

maybe just make those default values for fields?

[Alan Knight, 2012/08/30 17:50:40]

Yes, that's much nicer. Done.

+      if (month == 0) month = 1;
+      if (day == 0) day = 1;
     }
 
     // TODO(alanknight): Validate the date, especially for things which