Automatically add types to Python modules

PR python/32163 points out that various types provided by gdb are not
added to the gdb module, so they aren't available for interactive
inspection.  I think this is just an oversight.

This patch fixes the problem by introducing a new helper function that
both readies the type and then adds it to the appropriate module.  The
patch also poisons PyType_Ready, the idea being to avoid this bug in
the future.

v2:
* Fixed a bug in original patch in gdb.Architecture registration
* Added regression test for the types mentioned in the bug

Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=32163
Reviewed-By: Alexandra Petlanova Hajkova <ahajkova@redhat.com>

gdb/python/py-frame.c

@@ -761,7 +761,7 @@ static int CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION
 gdbpy_initialize_frames (void)
 {
   frame_object_type.tp_new = PyType_GenericNew;
-  if (PyType_Ready (&frame_object_type) < 0)
+  if (gdbpy_type_ready (&frame_object_type) < 0)
     return -1;
 
   /* Note: These would probably be best exposed as class attributes of
@@ -785,8 +785,7 @@ gdbpy_initialize_frames (void)
 #include "unwind_stop_reasons.def"
 #undef SET
 
-  return gdb_pymodule_addobject (gdb_module, "Frame",
-				 (PyObject *) &frame_object_type);
+  return 0;
 }
 
 GDBPY_INITIALIZE_FILE (gdbpy_initialize_frames);