bpo-45439: Rename _PyObject_CallNoArg() to _PyObject_CallNoArgs() (GH-28891)

Fix typo in the private _PyObject_CallNoArg() function name: rename
it to _PyObject_CallNoArgs() to be consistent with the public
function PyObject_CallNoArgs().

Python/bltinmodule.c

@@ -2305,7 +2305,7 @@ builtin_round_impl(PyObject *module, PyObject *number, PyObject *ndigits)
     }
 
     if (ndigits == Py_None)
-        result = _PyObject_CallNoArg(round);
+        result = _PyObject_CallNoArgs(round);
     else
         result = PyObject_CallOneArg(round, ndigits);
     Py_DECREF(round);

Python/ceval.c

@@ -867,7 +867,7 @@ match_keys(PyThreadState *tstate, PyObject *map, PyObject *keys)
         goto fail;
     }
     // dummy = object()
-    dummy = _PyObject_CallNoArg((PyObject *)&PyBaseObject_Type);
+    dummy = _PyObject_CallNoArgs((PyObject *)&PyBaseObject_Type);
     if (dummy == NULL) {
         goto fail;
     }
@@ -4295,7 +4295,7 @@ check_eval_breaker:
             }
             SET_TOP(exit);
             Py_DECREF(mgr);
-            res = _PyObject_CallNoArg(enter);
+            res = _PyObject_CallNoArgs(enter);
             Py_DECREF(enter);
             if (res == NULL)
                 goto error;
@@ -4333,7 +4333,7 @@ check_eval_breaker:
             }
             SET_TOP(exit);
             Py_DECREF(mgr);
-            res = _PyObject_CallNoArg(enter);
+            res = _PyObject_CallNoArgs(enter);
             Py_DECREF(enter);
             if (res == NULL) {
                 goto error;
@@ -5859,7 +5859,7 @@ do_raise(PyThreadState *tstate, PyObject *exc, PyObject *cause)
 
     if (PyExceptionClass_Check(exc)) {
         type = exc;
-        value = _PyObject_CallNoArg(exc);
+        value = _PyObject_CallNoArgs(exc);
         if (value == NULL)
             goto raise_error;
         if (!PyExceptionInstance_Check(value)) {
@@ -5890,7 +5890,7 @@ do_raise(PyThreadState *tstate, PyObject *exc, PyObject *cause)
     if (cause) {
         PyObject *fixed_cause;
         if (PyExceptionClass_Check(cause)) {
-            fixed_cause = _PyObject_CallNoArg(cause);
+            fixed_cause = _PyObject_CallNoArgs(cause);
             if (fixed_cause == NULL)
                 goto raise_error;
             Py_DECREF(cause);

Python/codecs.c

@@ -280,7 +280,7 @@ PyObject *codec_makeincrementalcodec(PyObject *codec_info,
     if (errors)
         ret = PyObject_CallFunction(inccodec, "s", errors);
     else
-        ret = _PyObject_CallNoArg(inccodec);
+        ret = _PyObject_CallNoArgs(inccodec);
     Py_DECREF(inccodec);
     return ret;
 }

Python/errors.c

@@ -91,7 +91,7 @@ _PyErr_CreateException(PyObject *exception_type, PyObject *value)
     PyObject *exc;
 
     if (value == NULL || value == Py_None) {
-        exc = _PyObject_CallNoArg(exception_type);
+        exc = _PyObject_CallNoArgs(exception_type);
     }
     else if (PyTuple_Check(value)) {
         exc = PyObject_Call(exception_type, value, NULL);

Python/marshal.c

@@ -1292,7 +1292,7 @@ r_object(RFILE *p)
 
         if (n == 0 && type == TYPE_FROZENSET) {
             /* call frozenset() to get the empty frozenset singleton */
-            v = _PyObject_CallNoArg((PyObject*)&PyFrozenSet_Type);
+            v = _PyObject_CallNoArgs((PyObject*)&PyFrozenSet_Type);
             if (v == NULL)
                 break;
             R_REF(v);

Python/sysmodule.c

@@ -1676,7 +1676,7 @@ _PySys_GetSizeOf(PyObject *o)
         }
     }
     else {
-        res = _PyObject_CallNoArg(method);
+        res = _PyObject_CallNoArgs(method);
         Py_DECREF(method);
     }