Fix set literals not being visited in symtable creation.
diff --git a/Python/Python-ast.c b/Python/Python-ast.c
index 86f09ed..b322039 100644
--- a/Python/Python-ast.c
+++ b/Python/Python-ast.c
@@ -3043,7 +3043,7 @@
if (PyDict_SetItemString(d, "AST", (PyObject*)AST_type) < 0) return;
if (PyModule_AddIntConstant(m, "PyCF_ONLY_AST", PyCF_ONLY_AST) < 0)
return;
- if (PyModule_AddStringConstant(m, "__version__", "51600") < 0)
+ if (PyModule_AddStringConstant(m, "__version__", "51631") < 0)
return;
if (PyDict_SetItemString(d, "mod", (PyObject*)mod_type) < 0) return;
if (PyDict_SetItemString(d, "Module", (PyObject*)Module_type) < 0)