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

Add PyCode_NewEx to be used internally and set PyCode_New as a compatibility wrapper
diff --git a/Include/code.h b/Include/code.h
index b79d977..3afddd2 100644
--- a/Include/code.h
+++ b/Include/code.h
@@ -120,6 +120,11 @@
 
 /* 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 *);