Symfony version(s) affected: 4.2-dev and previous

Description

if class accepts array of objects in constructor It doesn't recognize the argument type hint from phpdoc and deserializes it as a plain array.

How to reproduce

I created DeserializeNestedArrayOfObjectsTest that reproduces the issue.

Additional context
Here is Zoo class (without constructor). Animal object is deserialized as expected:

Then there is ZooImmutable (with constructor), an array given instead of Animal object: <- BUG