Support typed autowiring of two parameters in form handlers

[mildabre]

Purpose

The goal of this PR is to replace the existing hybrid autowiring logic for form handler parameters, which currently autowires by type (for a single parameter) or by position (for two parameters), with fully typed autowiring, where parameter order is irrelevant.

Implementation

The proposed changes introduce a parallel autowiring path that complements the existing logic without modifying it directly.

Unexpected behavior occurs with the following handler method signatures:

protected function formSucceeded(ArrayHash $values, Form $form) {}
protected function formSucceeded(array $values, Form $form) {}
protected function formSucceeded(stdClass $values, Form $form) {}

In these cases, the provided parameter types consistently result in an Error, and the handler method is never invoked, regardless of the code of the handler itself.

By handling these three parameter combinations within the newly introduced parallel logic path, this change remains 100% backward compatible.

Benefits

Nette developers are accustomed to type-based autowiring through DI, where parameter order doesn't matter. This proposal extends that principle to form handlers in a safe and modern way, aligning with the conventions of contemporary frameworks by enabling full type-based autowiring without relying on parameter sequence.

The proposed solution is currently being discussedon: nette forum