Run Argument Clinic: METH_VARARGS=>METH_FASTCALL

Issue #29286. Run Argument Clinic to get the new faster METH_FASTCALL calling
convention for functions using only positional arguments.
diff --git a/Python/clinic/_warnings.c.h b/Python/clinic/_warnings.c.h
index c15c9be..550c73f 100644
--- a/Python/clinic/_warnings.c.h
+++ b/Python/clinic/_warnings.c.h
@@ -35,4 +35,4 @@
 exit:
     return return_value;
 }
-/*[clinic end generated code: output=b3c5297c2c55778c input=a9049054013a1b77]*/
+/*[clinic end generated code: output=acadf1788059034c input=a9049054013a1b77]*/
diff --git a/Python/clinic/bltinmodule.c.h b/Python/clinic/bltinmodule.c.h
index 8d429e2..abf45b8 100644
--- a/Python/clinic/bltinmodule.c.h
+++ b/Python/clinic/bltinmodule.c.h
@@ -80,22 +80,26 @@
 "format_spec defaults to the empty string");
 
 #define BUILTIN_FORMAT_METHODDEF    \
-    {"format", (PyCFunction)builtin_format, METH_VARARGS, builtin_format__doc__},
+    {"format", (PyCFunction)builtin_format, METH_FASTCALL, builtin_format__doc__},
 
 static PyObject *
 builtin_format_impl(PyObject *module, PyObject *value, PyObject *format_spec);
 
 static PyObject *
-builtin_format(PyObject *module, PyObject *args)
+builtin_format(PyObject *module, PyObject **args, Py_ssize_t nargs, PyObject *kwnames)
 {
     PyObject *return_value = NULL;
     PyObject *value;
     PyObject *format_spec = NULL;
 
-    if (!PyArg_ParseTuple(args, "O|U:format",
+    if (!_PyArg_ParseStack(args, nargs, "O|U:format",
         &value, &format_spec)) {
         goto exit;
     }
+
+    if (!_PyArg_NoStackKeywords("format", kwnames)) {
+        goto exit;
+    }
     return_value = builtin_format_impl(module, value, format_spec);
 
 exit:
@@ -674,4 +678,4 @@
 exit:
     return return_value;
 }
-/*[clinic end generated code: output=63483deb75805f7c input=a9049054013a1b77]*/
+/*[clinic end generated code: output=66818a69d6d23181 input=a9049054013a1b77]*/
diff --git a/Python/clinic/import.c.h b/Python/clinic/import.c.h
index b3460b0..6ee9120 100644
--- a/Python/clinic/import.c.h
+++ b/Python/clinic/import.c.h
@@ -75,23 +75,27 @@
 "    File path to use.");
 
 #define _IMP__FIX_CO_FILENAME_METHODDEF    \
-    {"_fix_co_filename", (PyCFunction)_imp__fix_co_filename, METH_VARARGS, _imp__fix_co_filename__doc__},
+    {"_fix_co_filename", (PyCFunction)_imp__fix_co_filename, METH_FASTCALL, _imp__fix_co_filename__doc__},
 
 static PyObject *
 _imp__fix_co_filename_impl(PyObject *module, PyCodeObject *code,
                            PyObject *path);
 
 static PyObject *
-_imp__fix_co_filename(PyObject *module, PyObject *args)
+_imp__fix_co_filename(PyObject *module, PyObject **args, Py_ssize_t nargs, PyObject *kwnames)
 {
     PyObject *return_value = NULL;
     PyCodeObject *code;
     PyObject *path;
 
-    if (!PyArg_ParseTuple(args, "O!U:_fix_co_filename",
+    if (!_PyArg_ParseStack(args, nargs, "O!U:_fix_co_filename",
         &PyCode_Type, &code, &path)) {
         goto exit;
     }
+
+    if (!_PyArg_NoStackKeywords("_fix_co_filename", kwnames)) {
+        goto exit;
+    }
     return_value = _imp__fix_co_filename_impl(module, code, path);
 
 exit:
@@ -361,4 +365,4 @@
 #ifndef _IMP_EXEC_DYNAMIC_METHODDEF
     #define _IMP_EXEC_DYNAMIC_METHODDEF
 #endif /* !defined(_IMP_EXEC_DYNAMIC_METHODDEF) */
-/*[clinic end generated code: output=d24d7f73702a907f input=a9049054013a1b77]*/
+/*[clinic end generated code: output=5a3f012344950548 input=a9049054013a1b77]*/