'Update test to work with both old and new Gaudi versions (as we are still...

'Update test to work with both old and new Gaudi versions (as we are still building against both).' (EventInfo-00-11-02-10)

	* Tagging EventInfo-00-11-02-10.
	* test/MergedEventInfo_test.cxx: Update to work with both old and
	new Gaudi versions (as we are still building against both).


Former-commit-id: a40cd52f7e42994a2c083a2764b3d96a96df6d6c

Event/EventInfo/test/MergedEventInfo_test.cxx

@@ -15,7 +15,8 @@ using namespace std;
 int main() {
   cout << "*** MergedEventInfo_test starts ***" << endl;
   MergedEventInfo empty;
-  assert( static_cast<EventID::number_type>(-1) == empty.event_ID()->run_number() );
+  assert( static_cast<EventID::number_type>(-1) == empty.event_ID()->run_number() || // Gaudi 27
+          0 == empty.event_ID()->run_number()); // Gaudi 26
   EventInfo anInfo(new EventID(1, 23), new EventType(), new TriggerInfo());
 
   MergedEventInfo merged(anInfo, 3, 33);