[12.x] EnumerateValues::value() support objects and return negative values

[rafaelqueiroz]

From #54910

[rodrigopedra]

Using Arr::exists won't work with a collection of objects that don't implement ArrayAccess.

On my comment on the previous PR, I suggested using fn($v) => filled(data_get($v, $key)), but that also won't work for the case where the key is present but its value is null.

Ideally the test closure would replicate the data_get() helper function logic to verify if the key is present, also with nested properties using dot notation.

Maybe adding a data_has() helper with the logic to verify if a key is present could be a good idea.

Sorry for the formatting, am typing from my phone.

[taylorotwell]

Reverting original PR for now, which gives this one conflicts.