bpo-36974: tp_print -> tp_vectorcall_offset and tp_reserved -> tp_as_async (GH-13464)

Automatically replace
tp_print -> tp_vectorcall_offset
tp_compare -> tp_as_async
tp_reserved -> tp_as_async
diff --git a/Objects/classobject.c b/Objects/classobject.c
index cfc2446..ffd3f87 100644
--- a/Objects/classobject.c
+++ b/Objects/classobject.c
@@ -352,7 +352,7 @@
     offsetof(PyMethodObject, vectorcall),       /* tp_vectorcall_offset */
     0,                                          /* tp_getattr */
     0,                                          /* tp_setattr */
-    0,                                          /* tp_reserved */
+    0,                                          /* tp_as_async */
     (reprfunc)method_repr,                      /* tp_repr */
     0,                                          /* tp_as_number */
     0,                                          /* tp_as_sequence */
@@ -621,10 +621,10 @@
     sizeof(PyInstanceMethodObject),             /* tp_basicsize */
     0,                                          /* tp_itemsize */
     instancemethod_dealloc,                     /* tp_dealloc */
-    0,                                          /* tp_print */
+    0,                                          /* tp_vectorcall_offset */
     0,                                          /* tp_getattr */
     0,                                          /* tp_setattr */
-    0,                                          /* tp_reserved */
+    0,                                          /* tp_as_async */
     (reprfunc)instancemethod_repr,              /* tp_repr */
     0,                                          /* tp_as_number */
     0,                                          /* tp_as_sequence */