bpo-33029: Fix signatures of getter and setter functions. (GH-10746)


Fix also return type for few other functions (clear, releasebuffer).
(cherry picked from commit d4f9cf5545d6d8844e0726552ef2e366f5cc3abd)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
diff --git a/Objects/frameobject.c b/Objects/frameobject.c
index f518dc4..4ef10d0 100644
--- a/Objects/frameobject.c
+++ b/Objects/frameobject.c
@@ -64,7 +64,7 @@
  *    that time.
  */
 static int
-frame_setlineno(PyFrameObject *f, PyObject* p_new_lineno)
+frame_setlineno(PyFrameObject *f, PyObject* p_new_lineno, void *Py_UNUSED(ignored))
 {
     int new_lineno = 0;                 /* The new value of f_lineno */
     long l_new_lineno;
@@ -519,7 +519,7 @@
     return 0;
 }
 
-static void
+static int
 frame_tp_clear(PyFrameObject *f)
 {
     PyObject **fastlocals, **p, **oldtop;
@@ -547,6 +547,7 @@
         for (p = f->f_valuestack; p < oldtop; p++)
             Py_CLEAR(*p);
     }
+    return 0;
 }
 
 static PyObject *
@@ -561,7 +562,7 @@
         _PyGen_Finalize(f->f_gen);
         assert(f->f_gen == NULL);
     }
-    frame_tp_clear(f);
+    (void)frame_tp_clear(f);
     Py_RETURN_NONE;
 }