Add missing AP_UPD case in THUNK_SELECTOR.
/* -----------------------------------------------------------------------------
- * $Id: GC.c,v 1.82 2000/05/23 13:57:53 simonmar Exp $
+ * $Id: GC.c,v 1.83 2000/05/26 08:42:59 simonmar Exp $
*
* (c) The GHC Team 1998-1999
*
selectee = ((StgEvacuated *)selectee)->evacuee;
goto selector_loop;
+ case AP_UPD:
case THUNK:
case THUNK_1_0:
case THUNK_0_1: