[C++ Patch] Fix pastos (?) in make_typename_type calls

[Paolo Carlini]

Hi,

while looking into the re-opened c++/51213 (doesn't seem trivial: 
details soon, I hope) I noticed things which look like old pastos: in 
convert_template_argument and tsubst we are computing complain & 
tf_error for the - tsubst_flags_t, not bool - fourth argument of 
make_typename_type. That doesn't make much sense to me and the below, 
as-is, passes testing.

Thanks,
Paolo.

///////////////////////////
2012-07-24  Paolo Carlini  <paolo.carl...@oracle.com>

        * pt.c (convert_template_argument, tsubst): Fix pasto in the fourth
        argument to make_typename_type (complain & tf_error -> complain).

Index: pt.c
===================================================================
--- pt.c        (revision 189808)
+++ pt.c        (working copy)
@@ -6139,7 +6139,7 @@ convert_template_argument (tree parm,
       orig_arg = make_typename_type (TREE_OPERAND (arg, 0),
                                     TREE_OPERAND (arg, 1),
                                     typename_type,
-                                    complain & tf_error);
+                                    complain);
       arg = orig_arg;
       is_type = 1;
     }
@@ -11402,7 +11402,7 @@ tsubst (tree t, tree args, tsubst_flags_t complain
          }
 
        f = make_typename_type (ctx, f, typename_type,
-                               (complain & tf_error) | tf_keep_type_decl);
+                               complain | tf_keep_type_decl);
        if (f == error_mark_node)
          return f;
        if (TREE_CODE (f) == TYPE_DECL)