Add support for non type-hinted attribute accessors with no backed property

[pindab0ter]

Summary

This is a resubmission of #1338 as that got closed inadvertently.

Even though the documentation doesn't state this explicitly at the time of writing, it is possible to use the new Attribute accessor to create a calculated property where there is no backing property.

This solves #1315.

I added a check for if the Attribute accessor function has no specified type, and then add it without type.

Type of change

• New feature (non-breaking change which adds functionality)

Checklist

• Existing tests have been adapted and/or new tests have been added
• Add a CHANGELOG.md entry
• Code style has been fixed via composer fix-style

[pindab0ter]

Because of how the branches are now rebased on top of each other, this PR also includes #1339.

[jtomek]

Thank you for your work on this one. I'm not sure if I understand the status of this PR correctly. Is it still pending a final approval?

[pindab0ter]

We're still waiting on @mfn to review this PR.

For context, this is a resubmission of a PR originally submitted april 2022. I have since moved on to using Laravel Idea, which also has Laravel IDE Helper like functionality.

[chescos]

Hey @mfn - can we get this merged?

[ngmy]

I too am eager for this pull request to be merged.
It worked as expected in my local environment.

---

(added)

I tried dev-master and attributes without back properties with type hints worked.
My use cases are satisfactory.
(Attributes without back properties without type hints did not work.)

I do not want to reference dev-master and would like a release 🙏

[pindab0ter]

I have given up on waiting for this and have stopped using this package in favour of the Laravel IDEA plugin.

[barryvdh]

Sorry for the delay here.

Not sure why Psalm thinks it's dead code. I think the type can also be ReflectionNamedType or ReflectionUnionType according to https://www.php.net/manual/en/class.reflectiontype.php