bug #30136 use PropertyAccessorInterface instead of PropertyAccessor …

…(nick-zh)

This PR was submitted for the master branch but it was squashed and merged into the 3.4 branch instead (closes #30136).

Discussion
----------

use PropertyAccessorInterface instead of PropertyAccessor

[Validator] [Constraints] use PropertyAccessorInterface instead of PropertyAccessor

| Q             | A
| ------------- | ---
| Branch?       | master
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #30133 (partially)
| License       | MIT
| Doc PR        | none

Commits
-------

3e3ca9d use PropertyAccessorInterface instead of PropertyAccessor

src/Symfony/Component/Validator/Constraints/AbstractComparisonValidator.php

@@ -13,7 +13,7 @@
 
 use Symfony\Component\PropertyAccess\Exception\NoSuchPropertyException;
 use Symfony\Component\PropertyAccess\PropertyAccess;
-use Symfony\Component\PropertyAccess\PropertyAccessor;
+use Symfony\Component\PropertyAccess\PropertyAccessorInterface;
 use Symfony\Component\Validator\Constraint;
 use Symfony\Component\Validator\ConstraintValidator;
 use Symfony\Component\Validator\Exception\ConstraintDefinitionException;
@@ -29,7 +29,7 @@ abstract class AbstractComparisonValidator extends ConstraintValidator
 {
     private $propertyAccessor;
 
-    public function __construct(PropertyAccessor $propertyAccessor = null)
+    public function __construct(PropertyAccessorInterface $propertyAccessor = null)
     {
         $this->propertyAccessor = $propertyAccessor;
     }