Improve named autowiring targets

[nicolas-grekas]

This change provides better hints for #[Target] attributes, without changing anything else.

When running debug:autowiring:

And in the code, this allows:

function __construct(#[Target('default.entity_manager') EntityManagerInterface $em)

[stof]

isn't it a BC break to remove the old target in case projects were already using the #[Target] attribute ?

Btw, I think we should add a named target using only the configured named, without any suffix. This will be even better for usages in the #[Target] attribute.

[nicolas-grekas]

All targets are going to be normalized into their camel-case version so this is going to end up being the same, that's what I meant by "without changing anything else".
We cannot remove the suffix without creating a new named autowiring alias (EntityManagerInterface $theName). This would pollute the debug:autowiring output to me, so I decided not adding the suffix-less target.

[stof]

@nicolas-grekas are you sure they are normalized into the camel cased version for usage in the Target attribute ?
I thought this normalization happened only for the detection based on argument names.

[nicolas-grekas]

Pretty much yes, in the end, we always check the named autowiring alias:
https://github.com/symfony/symfony/blob/7.3/src/Symfony/Component/DependencyInjection/Compiler/AutowirePass.php#L472
See also https://github.com/symfony/symfony/blob/7.3/src/Symfony/Component/DependencyInjection/Attribute/Target.php