Fixed memory leak with --builtin (bug 3385089)

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@12782 626c5289-ae23-0410-ae9c-e8d60b6d4f22

CHANGES.current

@@ -5,6 +5,9 @@ See the RELEASENOTES file for a summary of changes in each release.
 Version 2.0.5 (in progress)
 ===========================
 
+2011-08-22: szager
+	    [python] Fixed memory leak with --builtin option (bug 3385089).
+
 2011-08-22: wsfulton
             [Lua] SF patch #3394339 from Torsten Landschoff - new option -nomoduleglobal to disable installing 
             the module table into the global namespace. Require call also returns the module table instead 

Lib/python/builtin.swg

@@ -13,6 +13,7 @@ wrapper##_closure(PyObject *a) {		\
 	PyObject *o = wrapper(a, NULL);		\
 	Py_XDECREF(o);				\
     }						\
+    PyObject_Del(a);				\
 }
 
 #define SWIGPY_INQUIRY_CLOSURE(wrapper)				\