[Php71] Skip property fetch array assigned in method call on __construct on CountOnNullRector

[samsonasik]

Given the following code:

final class SkipPropertyArrayFilledByConstructViaMethodCall
{
    /** @var array */
    private $property;

    public function __construct()
    {
        $this->fill();
    }

    private function fill()
    {
        $this->property = [];
    }

    public function run(): int
    {
        return count($this->property);
    }
}

It produce:

-        return count($this->property);
+        return count((array) $this->property);

which should be skipped.

[samsonasik]

Fixed 🎉

[samsonasik]

All checks have passed 🎉 @TomasVotruba it is ready for review.

[TomasVotruba]

Neat work 👍
I was thinking about inside the method checks, but it seemed too big challange. Thanks for taking this one 👏