Description:
------------
Availability to call protected method from outside class or its descendants.

Reproduce code:
---------------
<?php

class a
{
  protected function aa()
  {
    echo "a-aa\n";
  }
}

class b extends a
{
  protected function aa()
  {
    echo "b-aa\n";
  }  
}

// Extends is affects on the behaviour:
//   - When "c" extends the "a" - not correct behaviour: working as in "Actual result"
//   - When "c" NOT extends the "a" - correct behaviour: working as in "Expected result"
class c extends a 
{
  public function cc()
  {
    $obj = new a();
    $obj->aa();
    
    $obj2 = new b();
    $obj2->aa();
  }

}

$c = new c();
$c->cc();

?>

Expected result:
----------------
Fatal error: Call to protected method a::aa() from context 'c'

Actual result:
--------------
a-aa
b-aa