GH-89419
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Validate extension JSON: Error: Field 'classes/AcceptDialog/methods/register_text_enter/arguments/0': type changed value in new API, from "Control" to "LineEdit".
Validate extension JSON: Error: Field 'classes/AcceptDialog/methods/remove_button/arguments/0': type changed value in new API, from "Control" to "Button".

Changed argument type to the more specific one actually expected by the method. Compatibility method registered.
