libxl: idl: use "dispose" rather than "destroy" for function to free IDL types

Destroy is an overloaded term which would commonly like to be used for actual
destructive operations, such as destroying a domain etc.

Dispose isn't a great term but it does the job.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>

tools/python/genwrap.py

@@ -100,8 +100,8 @@ def py_attrib_set(ty, f):
 
 def py_object_def(ty):
     l = []
-    if ty.destructor_fn is not None:
-        dtor = '    %s(&self->obj);\n'%ty.destructor_fn
+    if ty.dispose_fn is not None:
+        dtor = '    %s(&self->obj);\n'%ty.dispose_fn
     else:
         dtor = ''