bpo-29464: Rename METH_FASTCALL to METH_FASTCALL|METH_KEYWORDS and make (#1955)

the bare METH_FASTCALL be used for functions with positional-only
parameters.
diff --git a/Modules/clinic/arraymodule.c.h b/Modules/clinic/arraymodule.c.h
index 6ffd4ff..2b61195 100644
--- a/Modules/clinic/arraymodule.c.h
+++ b/Modules/clinic/arraymodule.c.h
@@ -71,15 +71,11 @@
 array_array_pop_impl(arrayobject *self, Py_ssize_t i);
 
 static PyObject *
-array_array_pop(arrayobject *self, PyObject **args, Py_ssize_t nargs, PyObject *kwnames)
+array_array_pop(arrayobject *self, PyObject **args, Py_ssize_t nargs)
 {
     PyObject *return_value = NULL;
     Py_ssize_t i = -1;
 
-    if (!_PyArg_NoStackKeywords("pop", kwnames)) {
-        goto exit;
-    }
-
     if (!_PyArg_ParseStack(args, nargs, "|n:pop",
         &i)) {
         goto exit;
@@ -112,16 +108,12 @@
 array_array_insert_impl(arrayobject *self, Py_ssize_t i, PyObject *v);
 
 static PyObject *
-array_array_insert(arrayobject *self, PyObject **args, Py_ssize_t nargs, PyObject *kwnames)
+array_array_insert(arrayobject *self, PyObject **args, Py_ssize_t nargs)
 {
     PyObject *return_value = NULL;
     Py_ssize_t i;
     PyObject *v;
 
-    if (!_PyArg_NoStackKeywords("insert", kwnames)) {
-        goto exit;
-    }
-
     if (!_PyArg_ParseStack(args, nargs, "nO:insert",
         &i, &v)) {
         goto exit;
@@ -214,16 +206,12 @@
 array_array_fromfile_impl(arrayobject *self, PyObject *f, Py_ssize_t n);
 
 static PyObject *
-array_array_fromfile(arrayobject *self, PyObject **args, Py_ssize_t nargs, PyObject *kwnames)
+array_array_fromfile(arrayobject *self, PyObject **args, Py_ssize_t nargs)
 {
     PyObject *return_value = NULL;
     PyObject *f;
     Py_ssize_t n;
 
-    if (!_PyArg_NoStackKeywords("fromfile", kwnames)) {
-        goto exit;
-    }
-
     if (!_PyArg_ParseStack(args, nargs, "On:fromfile",
         &f, &n)) {
         goto exit;
@@ -464,7 +452,7 @@
                                 PyObject *items);
 
 static PyObject *
-array__array_reconstructor(PyObject *module, PyObject **args, Py_ssize_t nargs, PyObject *kwnames)
+array__array_reconstructor(PyObject *module, PyObject **args, Py_ssize_t nargs)
 {
     PyObject *return_value = NULL;
     PyTypeObject *arraytype;
@@ -472,10 +460,6 @@
     enum machine_format_code mformat_code;
     PyObject *items;
 
-    if (!_PyArg_NoStackKeywords("_array_reconstructor", kwnames)) {
-        goto exit;
-    }
-
     if (!_PyArg_ParseStack(args, nargs, "OCiO:_array_reconstructor",
         &arraytype, &typecode, &mformat_code, &items)) {
         goto exit;
@@ -521,4 +505,4 @@
 
 #define ARRAY_ARRAYITERATOR___SETSTATE___METHODDEF    \
     {"__setstate__", (PyCFunction)array_arrayiterator___setstate__, METH_O, array_arrayiterator___setstate____doc__},
-/*[clinic end generated code: output=fb4a67e697d7c0b0 input=a9049054013a1b77]*/
+/*[clinic end generated code: output=c7dfe61312b236a9 input=a9049054013a1b77]*/