Completion Proposal for query methods doesn't work with `record` entities

Consider a record:

```java
public record Customer(@Id Integer id, String name) {}
```

And a corresponding repository:

```java
public interface CustomersRepo extends Repository<Customer, Integer> {
}
```

Now, one of the method completion proposal should have `Name` proposal for:
```java
public interface CustomersRepo extends Repository<Customer, Integer> {

   findBy^
}
```