make calIRecurrenceInfo.getNextOccurrence not return occurences with startTime == aStartTime

bug 278149, r=vlad

calendar/base/public/calIRecurrenceInfo.idl

@@ -86,7 +86,7 @@ interface calIRecurrenceInfo : nsISupports
   //
 
   // return the next display item for the event,
-  // where the start time is >= aStartTime
+  // where the start time is > aStartTime
   calIItemOccurrence getNextOccurrence (in calIDateTime aOccurrenceTime);
 
   // return array of calIItemOccurrence representing all

calendar/base/src/calRecurrenceDate.cpp

@@ -141,7 +141,7 @@ calRecurrenceDate::GetNextOccurrence(calIDateTime *aStartTime,
 
     if (mDate) {
         PRInt32 result;
-        if (NS_SUCCEEDED(mDate->Compare(aStartTime, &result)) && result >= 0) {
+        if (NS_SUCCEEDED(mDate->Compare(aStartTime, &result)) && result > 0) {
             NS_ADDREF (*_retval = mDate);
             return NS_OK;
         }

calendar/base/src/calRecurrenceDateSet.cpp

@@ -208,7 +208,7 @@ calRecurrenceDateSet::GetNextOccurrence(calIDateTime *aStartTime,
 
     // we ignore aStartTime
     for (i = 0; i < mDates.Count(); i++) {
-        if (NS_SUCCEEDED(mDates[i]->Compare(aOccurrenceTime, &result)) && result >= 0) {
+        if (NS_SUCCEEDED(mDates[i]->Compare(aOccurrenceTime, &result)) && result > 0) {
             NS_ADDREF (*_retval = mDates[i]);
             return NS_OK;
         }

calendar/base/src/calRecurrenceRule.cpp

@@ -361,7 +361,7 @@ calRecurrenceRule::GetNextOccurrence(calIDateTime *aStartTime,
 
     struct icaltimetype next = icalrecur_iterator_next(recur_iter);
     while (!icaltime_is_null_time(next)) {
-        if (icaltime_compare(next, occurtime) >= 0)
+        if (icaltime_compare(next, occurtime) > 0)
             break;
 
         next = icalrecur_iterator_next(recur_iter);