[PATCH v3] [gdb/python] Make sure python sys.exit makes gdb exit

[Tom Tromey]

>>>>> "Tom" == Tom de Vries <tdevries@suse.de> writes:

Tom> +	  /* Ignore AttributeError and similar.  */
Tom> +	  if (code.get () != nullptr)
Tom> +	    PyErr_Clear();

I think the test is backward?

Normally we try not to silently swallow exceptions but instead just call
gdbpy_print_stack.  Not sure if that works here?  If not clearing the
exception is alright.

It's probably hard to even get this to trigger.

Tom