Rename _PyArg_ParseStack to _PyArg_ParseStackAndKeywords

Issue #29286.
diff --git a/Objects/abstract.c b/Objects/abstract.c
index bba946e..48fdf65 100644
--- a/Objects/abstract.c
+++ b/Objects/abstract.c
@@ -2485,7 +2485,7 @@
 
     /* kwnames must only contains str strings, no subclass, and all keys must
        be unique: these checks are implemented in Python/ceval.c and
-       _PyArg_ParseStack(). */
+       _PyArg_ParseStackAndKeywords(). */
 
     if (PyFunction_Check(callable)) {
         return _PyFunction_FastCallKeywords(callable, stack, nargs, kwnames);