File can not be opened when parent class uses anonymous class

[gharlan]

I found a minimal setup to reproduce the bug:

File foo.php:

<?php

class Foo
{
    protected $x;

    public function __construct()
    {
        $this->x = new class() {

        };
    }
}

File bar.php:

<?php

class Bar extends Foo
{
    public function baz()
    {
        $this->x->baz('');
    }
}

File bar.php can not be opened, nothing happen. The string parameter for baz('') is important, without this parameter, or with another parameter type like int, the file can be opened.

PhpStorm 2017.1.2; PS-171.4249.3

[gharlan]

I cannot reproduce it with current versions.