class foo {
	public $value;	
}

class bar {
	public $foos;
	
	/**
	 * @return foo[]
	 */
	public function getHintedFoos(){
		return $this->foo;
	}
	
	public function getUnhintedFoos(){
		return $this->foo;
	}	
}

$obj_bar = new bar();

$obj_bar->getHintedFoos()[0]->		// WORKS: code assist uses @return as hint
$obj_bar->getUnhintedFoos()[0]->	// DOES NOT WORK, OBVIOUSLY: code assist has no clue what is returned

/* @var $single_foo foo */
$single_foo = $obj_bar->getUnhintedFoos();
$single_foo->						// WORKS: code assist uses @var as hint 

/* @var $array_foos foo[] */
$array_foos = $obj_bar->getUnhintedFoos();
$array_foos[0]->					// DOES NOT WORK, WHY???

class bar {
	public $foos;
...

class bar {
    /**
     * @var foo[]
     */
    public $foo;
...