qapi-types/visit.py: Pass whole expr dict for structs

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
diff --git a/scripts/qapi-visit.py b/scripts/qapi-visit.py
index 597cca4..1e44004 100644
--- a/scripts/qapi-visit.py
+++ b/scripts/qapi-visit.py
@@ -120,7 +120,11 @@
 ''')
     return ret
 
-def generate_visit_struct(name, members):
+def generate_visit_struct(expr):
+
+    name = expr['type']
+    members = expr['data']
+
     ret = generate_visit_struct_fields(name, "", "", members)
 
     ret += mcgen('''
@@ -472,7 +476,7 @@
 
 for expr in exprs:
     if expr.has_key('type'):
-        ret = generate_visit_struct(expr['type'], expr['data'])
+        ret = generate_visit_struct(expr)
         ret += generate_visit_list(expr['type'], expr['data'])
         fdef.write(ret)