[PropertyAccess] fixes #8659 - added isAccessible() method to PropertyAccessor

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | yes
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #8659
| License       | MIT
| Doc PR        | n/a

added `isAccessible()` method to `PropertyAccessor`
Does not perform actual getting which may contain logic