AddArrowFunctionReturnTypeRector wants to add illegal :void

[gregor-tb]

Bug Report

Subject	Details
Rector version	0.14.8

AddArrowFunctionReturnTypeRector rule adds return type ": void" to some arrow functions, but (at least in php 8.0) this is not valid.

See https://getrector.org/demo/baa80f25-d170-4a67-a78d-54ff1f1c0e6f

Expected Behaviour

Ignore void, add only valid types.

[TomasVotruba]

Thank you for your report and demo link!

We'll need a failing test case in a pull-request, so we have it covered in Rector.
You can click "Create a Test" button at demo page.