why are signal identifiers strings?

[Sami Juhani Kallio <samik eiffel com>]

Sorry if this is a FAQ, but I didn't find any answer in the
documentation. I was not able to think of any good reason why signal
identifiers are strings like "clicked" instead of integer constants
(CLICKED).


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Sami Kallio	                    		email: samik@eiffel.com
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