bpo-37221: Add PyCode_NewWithPosOnlyArgs to be used internally and set PyCode_New as a compatibility wrapper (GH-13959) (#14505)

Add PyCode_NewEx to be used internally and set PyCode_New as a compatibility wrapper
(cherry picked from commit 4a2edc34a4)

Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>

Include/code.h

@@ -120,6 +120,11 @@ PyAPI_DATA(PyTypeObject) PyCode_Type;
 
 /* Public interface */
 PyAPI_FUNC(PyCodeObject *) PyCode_New(
+        int, int, int, int, int, PyObject *, PyObject *,
+        PyObject *, PyObject *, PyObject *, PyObject *,
+        PyObject *, PyObject *, int, PyObject *);
+
+PyAPI_FUNC(PyCodeObject *) PyCode_NewWithPosOnlyArgs(
         int, int, int, int, int, int, PyObject *, PyObject *,
         PyObject *, PyObject *, PyObject *, PyObject *,
         PyObject *, PyObject *, int, PyObject *);