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/Python/clinic/import.c.h b/Python/clinic/import.c.h
index 5f4bad2..ddd694f 100644
--- a/Python/clinic/import.c.h
+++ b/Python/clinic/import.c.h
@@ -82,16 +82,12 @@
                            PyObject *path);
 
 static PyObject *
-_imp__fix_co_filename(PyObject *module, PyObject **args, Py_ssize_t nargs, PyObject *kwnames)
+_imp__fix_co_filename(PyObject *module, PyObject **args, Py_ssize_t nargs)
 {
     PyObject *return_value = NULL;
     PyCodeObject *code;
     PyObject *path;
 
-    if (!_PyArg_NoStackKeywords("_fix_co_filename", kwnames)) {
-        goto exit;
-    }
-
     if (!_PyArg_ParseStack(args, nargs, "O!U:_fix_co_filename",
         &PyCode_Type, &code, &path)) {
         goto exit;
@@ -279,16 +275,12 @@
 _imp_create_dynamic_impl(PyObject *module, PyObject *spec, PyObject *file);
 
 static PyObject *
-_imp_create_dynamic(PyObject *module, PyObject **args, Py_ssize_t nargs, PyObject *kwnames)
+_imp_create_dynamic(PyObject *module, PyObject **args, Py_ssize_t nargs)
 {
     PyObject *return_value = NULL;
     PyObject *spec;
     PyObject *file = NULL;
 
-    if (!_PyArg_NoStackKeywords("create_dynamic", kwnames)) {
-        goto exit;
-    }
-
     if (!_PyArg_UnpackStack(args, nargs, "create_dynamic",
         1, 2,
         &spec, &file)) {
@@ -369,4 +361,4 @@
 #ifndef _IMP_EXEC_DYNAMIC_METHODDEF
     #define _IMP_EXEC_DYNAMIC_METHODDEF
 #endif /* !defined(_IMP_EXEC_DYNAMIC_METHODDEF) */
-/*[clinic end generated code: output=b970357dbbe25ee4 input=a9049054013a1b77]*/
+/*[clinic end generated code: output=d068dd493e513604 input=a9049054013a1b77]*/