Bug 1060865 - Fix end date filling in SmsFilter. r=vicamo

Copying the endDate value in the startDate field won't make the filter
working properly ; in fact, it will even crash the Messages app
sometimes because of the uninitialized value of the endDate which is
invalid and triggers a DataError within the MobileMessageDB.

dom/mobilemessage/ipc/SmsIPCService.cpp

@@ -238,7 +238,7 @@ SmsIPCService::CreateMessageCursor(bool aHasStartDate,
   data.hasStartDate() = aHasStartDate;
   data.startDate() = aStartDate;
   data.hasEndDate() = aHasEndDate;
-  data.startDate() = aEndDate;
+  data.endDate() = aEndDate;
 
   if (aNumbersCount && aNumbers) {
     nsTArray<nsString>& numbers = data.numbers();