refactor(parser): split check_method_definition by method kind

[ulrichstark]

Split check_method_definition by method kind into check_method_definition_accessor, check_method_definition_constructor and check_method_definition_method and keep common logic in check_method_definition. This avoids unnecessary checks and makes the logic easier to read.

[Copilot]

Pull Request Overview

This PR refactors the check_method_definition method by splitting it into three specialized functions based on method kind: accessors, constructors, and regular methods. This improves code organization by avoiding unnecessary checks and makes the validation logic more readable.

• Split check_method_definition into kind-specific functions while preserving common validation logic
• Updated call sites to use the appropriate specialized method based on context
• Reorganized abstract method validation to be specific to each method type

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

[codspeed-hq]

CodSpeed Instrumentation Performance Report

Merging #14364 will not alter performance

_{Comparing ulrichstark:split-check_method_definition-by-method-kind (58908b4) with main (4a5249f)}

Summary

✅ 37 untouched