Fix JSON mapping linting against subset of builtin types

[norkunas]

Closes #11072

[derrabus]

How does this fix play with union types? For example:

#[Column(type: 'json')]
private array|bool|null $data;

[norkunas]

How does this fix play with union types? For example:

#[Column(type: 'json')]
private array|bool|null $data;

It is not linted, because it's already ignored here:

orm/lib/Doctrine/ORM/Tools/SchemaValidator.php

Lines 373 to 376 in 93d2057

	// If the property type is not a named type, we cannot check it
	if (! ($propertyType instanceof ReflectionNamedType)) {
	return null;
	}

[derrabus]

Ah, perfect. 😎

[derrabus]

It is not linted, because it's already ignored here:

orm/lib/Doctrine/ORM/Tools/SchemaValidator.php

Lines 373 to 376 in 93d2057

	// If the property type is not a named type, we cannot check it
	if (! ($propertyType instanceof ReflectionNamedType)) {
	return null;
	}

Actually, I think we should extend this condition to also include mixed. Performing this validation on mixed properties is pretty pointless, given that mixed is a union of every value type known to PHP. We're about to build a special case for JSON on mixed, but I think this applies to more or less any DBAL type, built-in or custom.

[norkunas]

Updated to always ignore mixed type

[norkunas]

Can we get this merged? 🙂

[norkunas]

Thank you

[gnutix]

@derrabus @greg0ire Would you mind releasing a 2.17.2 version with this fix ? 🙏