Update documentation

Author: vstinner

Doc/c-api/frame.rst

@@ -223,13 +223,15 @@ Internal Frames
 
 Unless using :pep:`523`, you will not need this.
 
-.. c:struct:: _PyInterpreterFrame
+.. c:struct:: PyUnstable_InterpreterFrame
 
    The interpreter's internal frame representation.
 
    .. versionadded:: 3.11
+   .. versionchanged:: next
+      Renamed to ``PyUnstable_InterpreterFrame``.
 
-.. c:function:: PyObject* PyUnstable_InterpreterFrame_GetCode(struct _PyInterpreterFrame *frame);
+.. c:function:: PyObject* PyUnstable_InterpreterFrame_GetCode(PyUnstable_InterpreterFrame *frame);
 
     Return a :term:`strong reference` to the code object for the frame.
 
@@ -246,14 +248,14 @@ Unless using :pep:`523`, you will not need this.
    .. versionadded:: next
 
 
-.. c:function:: int PyUnstable_InterpreterFrame_GetLasti(struct _PyInterpreterFrame *frame);
+.. c:function:: int PyUnstable_InterpreterFrame_GetLasti(PyUnstable_InterpreterFrame *frame);
 
    Return the byte offset into the last executed instruction.
 
    .. versionadded:: 3.12
 
 
-.. c:function:: int PyUnstable_InterpreterFrame_GetLine(struct _PyInterpreterFrame *frame);
+.. c:function:: int PyUnstable_InterpreterFrame_GetLine(PyUnstable_InterpreterFrame *frame);
 
    Return the currently executing line number, or -1 if there is no line number.