BSC_Test_ASCI: Add race condition test, if MSC acknowledges talker

The existing tests (talker fails, talker establishes, talker releases)
delay, so the MSC acknowledges the UPLINK REQUEST first. It is expected
that the events of the talker (failure, establishment, release) are
forwarded to the MSC after the acknowledgement.

New tests are added, so that the MSC acknowledges the UPLINK REQUEST
late. It is expected that the events of the talker are not forwarded
before the MSC acknowledges.

The BSC (under test) must queue the events of the talker before the MSC
has acknowledged the UPLINK REQUEST.

Change-Id: I28081e62287bdc17a3b477d9368f977aedce01c8
diff --git a/bsc/MSC_ConnectionHandler.ttcn b/bsc/MSC_ConnectionHandler.ttcn
index 0c62003..b7760d0 100644
--- a/bsc/MSC_ConnectionHandler.ttcn
+++ b/bsc/MSC_ConnectionHandler.ttcn
@@ -761,7 +761,9 @@
 	boolean vgcs_talker_est,
 	boolean vgcs_talker_rel,
 	boolean vgcs_uplink_seized,
-	boolean vgcs_uplink_release
+	boolean vgcs_uplink_release,
+	boolean delay_bts,
+	boolean delay_msc
 };
 
 type record TestHdlrParams {
@@ -853,10 +855,13 @@
 		vgcs_assign_ok := false,
 		vgcs_assign_fail := false,
 		vgcs_talker_req := false,
+		vgcs_talker_fail := false,
 		vgcs_talker_est := false,
 		vgcs_talker_rel := false,
 		vgcs_uplink_seized := false,
-		vgcs_uplink_release := false
+		vgcs_uplink_release := false,
+		delay_bts := false,
+		delay_msc := false
 	}
 }