Infrastructure cleanup part 2.
Replace Iex_Mux0X with Iex_ITE (if-then-else) 
and 
IRExpr_Mux0X( cond, iffalse, iftrue ) with
IRExpr_ITE  ( cond, iftrue, iffalse );


git-svn-id: svn://svn.valgrind.org/vex/trunk@2668 8f6e269a-dfd6-0310-a8e1-e2731360e62c
diff --git a/priv/guest_s390_toIR.c b/priv/guest_s390_toIR.c
index 9f7eb17..377b5b6 100644
--- a/priv/guest_s390_toIR.c
+++ b/priv/guest_s390_toIR.c
@@ -240,7 +240,7 @@
 {
    vassert(typeOfIRExpr(irsb->tyenv, condition) == Ity_I1);
 
-   return IRExpr_Mux0X(condition, iffalse, iftrue);
+   return IRExpr_ITE(condition, iftrue, iffalse);
 }
 
 /* Add a statement that stores DATA at ADDR. This is a big-endian machine. */