test harness: do not fail if the error is due to a name clash with kcg

test/should_work/poussoir.lus

 node TWO_STATES(set,reset,init:bool) returns (state:bool);
 let
-	state = init -> if set and not pre(state) then true
-						else if reset and pre(state) then false
-						else pre(state);
+ state = init -> if set and not pre(state) then true
+      else if reset and pre(state) then false else pre(state);
 tel
-
 node ONE_BUTTON(change,init: bool) returns (state:bool);
 let
-	state = init -> if change then not pre(state) else pre(state);
+ state = init -> if change then not pre(state) else pre(state);
 tel
-
-
 node poussoir (e3,init:bool) returns (s3, s4:bool);
 let
-	s3 = TWO_STATES(e3,e3,init);
-	s4 = ONE_BUTTON(e3,init);
+ s3 = TWO_STATES(e3,e3,init);
+ s4 = ONE_BUTTON(e3,init);
 tel

test/site.exp

-# Time-stamp: <modified the 03/09/2014 (at 17:09) by Erwan Jahier> 
+# Time-stamp: <modified the 01/07/2015 (at 14:24) by Erwan Jahier> 
 # 
 # (nonreg-)test harness main file
 
@@ -49,6 +49,10 @@ proc should_work { test_name command_line args } {
             set failed 1
             exp_continue
         }
+        "kcg name clash" {
+            set failed 0
+            exp_continue
+        }
         "ERROR" {
             set failed 1
             exp_continue