A debug assert is incorrectly triggered when "LWN_Get_Parent" is traversed to 
the "FUNC_ENTRY" node which has no parent.
My fix here is to stop at the "FUNC_ENTRY".

Index: be/lno/cond.cxx
===================================================================
--- be/lno/cond.cxx        (revision 1323)
+++ be/lno/cond.cxx     (working copy)
@@ -173,7 +173,9 @@
#ifdef Is_True_On
     if (TY_kind(ST_type(WN_st(wn))) == KIND_SCALAR) {
       WN *tmp = wn;
-      while (tmp && WN_opcode(tmp) != OPC_IO) tmp = LWN_Get_Parent(tmp);
+      while (tmp && (WN_opcode(tmp)!= OPC_IO) && (WN_opcode(tmp) != 
OPC_FUNC_ENTRY))
+             tmp = LWN_Get_Parent(tmp);
+
       Is_True(tmp, ("Missing defs for %s (wn=%ld=0x%lx)",
                                  SYMBOL(wn).Name(), wn, wn));
     }
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