Fix C ext test template c_template_void

Author: fangerer

graalpython/com.oracle.graal.python.test/src/tests/cpyext/__init__.py

@@ -201,6 +201,7 @@ def file_not_empty(path):
 static PyObject* test_{capifunction}(PyObject* module, PyObject* args) {{
     PyObject* ___arg;
     {argumentdeclarations};
+#ifndef NOARGS
     if (!PyArg_ParseTuple(args, "O", &___arg)) {{
         return NULL;
     }}
@@ -214,6 +215,7 @@ def file_not_empty(path):
     else {{
         {singleargumentname} = ___arg;
     }}
+#endif
 #endif
     {callfunction}({argumentnames});
     return Py_BuildValue("{resultspec}", {resultval});

graalpython/com.oracle.graal.python.test/src/tests/cpyext/test_err.py

@@ -393,6 +393,7 @@ def compile_module(self, name):
         }
         """,
         resultspec="O",
+        arguments=[],
         callfunction="wrap_PyErr_Fetch_tb_from_c",
         cmpfunc=compare_tracebacks,
     )