[Octave-bug-tracker] [bug #46497] classdef: delete destructor method is not called when clearing handle class

[Piotr Held]

Follow-up Comment #2, bug #46497 (project octave):

And I tested it as extensively as I could with no side effects.

The destructor is called only when clearing an object that inherits from
handle and not when a classdef does not inherit from handle.

The way I arrived at this solution was to turn on DEBUG_TRACES in
ov-classdef.cc and then I found the location where the handle_cdef_object
destructor is called. That's where I added the cdef_class::delete_object()
function which calls the classdef "delete()" method. 

I also wrote a tests for the problem.

The patch filename is:
patch_classdef_destructor_bug46497.diff

(file #42322)
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