Fixed missing governor for the target of decmatch

Signed-off-by: Botond Baranyi <botond.baranyi@ericsson.com>

compiler2/Type_chk.cc

@@ -7617,6 +7617,7 @@ bool Type::chk_this_template_Str(Template *t, namedbool out_inout_par_allowed, n
       if (target->get_Type() != NULL && target_type->is_ref()) {
         target_type = target_type->get_type_refd();
       }
+      target->get_Template()->set_my_governor(target_type);
       self_ref = target_type->chk_this_template_generic(
         target->get_Template(), (target->get_DerivedRef() != NULL) ?
         INCOMPLETE_ALLOWED : INCOMPLETE_NOT_ALLOWED,

regression_test/templateOctetstr/TtemplateOctetstringDecmatch.ttcn

@@ -241,6 +241,18 @@ testcase tc_PDU103_6()runs on CT {
   log("tl_Message2: ", tl_Message2);
  // log(match(vl_msg, t_Message2))
 }
+
+// compile-only test
+type record R {
+  octetstring s
+} with {
+  variant "";
+}
+template R T (template octetstring ts := ?) := {
+ s := ts
+}
+template R T1 := T(decmatch T);
+
 control {
   execute( tc_PDU101_1());
   execute(tc_PDU101_1param());