The following frame functions and type are now directly available with
``#include <Python.h>``, it's no longer needed to add ``#include
<frameobject.h>``:

* :c:func:`PyFrame_Check`
* :c:func:`PyFrame_GetBack`
* :c:func:`PyFrame_GetBuiltins`
* :c:func:`PyFrame_GetGenerator`
* :c:func:`PyFrame_GetGlobals`
* :c:func:`PyFrame_GetLasti`
* :c:func:`PyFrame_GetLocals`
* :c:type:`PyFrame_Type`

Patch by Victor Stinner.
