* pt.c (iterative_hash_template_arg): Use cp_tree_operand_length.

From-SVN: r175737

gcc/cp/ChangeLog

 2011-06-30  Jason Merrill  <jason@redhat.com>
 
+	* pt.c (iterative_hash_template_arg): Use cp_tree_operand_length.
+
 	PR c++/49355
 	* tree.c (stabilize_init): Handle aggregate initialization.
 

gcc/cp/pt.c

@@ -1609,7 +1609,7 @@ iterative_hash_template_arg (tree arg, hashval_t val)
     default:
       gcc_assert (IS_EXPR_CODE_CLASS (tclass));
       {
-	unsigned n = TREE_OPERAND_LENGTH (arg);
+	unsigned n = cp_tree_operand_length (arg);
 	for (i = 0; i < n; ++i)
 	  val = iterative_hash_template_arg (TREE_OPERAND (arg, i), val);
 	return val;