bsc: Add statsd checker and use it in TC_assignment_sign

Related: SYS#4877
Change-Id: I8526b645dc4af59adcc1855699421a026f505c1d
diff --git a/bsc/MSC_ConnectionHandler.ttcn b/bsc/MSC_ConnectionHandler.ttcn
index 7b8f087..bf96eff 100644
--- a/bsc/MSC_ConnectionHandler.ttcn
+++ b/bsc/MSC_ConnectionHandler.ttcn
@@ -30,6 +30,8 @@
 import from MGCP_Emulation all;
 import from SDP_Types all;
 
+import from StatsD_Checker all;
+
 import from RSL_Emulation all;
 import from RSL_Types all;
 
@@ -409,7 +411,7 @@
 /* this component represents a single subscriber connection at the MSC.
  * There is a 1:1 mapping between SCCP connections and RAN_ConnHdlr components.
  * We inherit all component variables, ports, functions, ... from RAN_ConnHdlr */
-type component MSC_ConnHdlr extends RAN_ConnHdlr, RSL_DchanHdlr, MGCP_ConnHdlr {
+type component MSC_ConnHdlr extends RAN_ConnHdlr, RSL_DchanHdlr, MGCP_ConnHdlr, StatsD_ConnHdlr {
 	/* SCCP Connecction Identifier for the underlying SCCP connection */
 	var integer g_sccp_conn_id;