<NME> ReturnTypeHintedClass.php
<BEF> <?php

namespace ZendTest\Code\TestAsset;

class ReturnTypeHintedClass
{
    public function arrayReturn() : array
    {
    }

    public function callableReturn() : callable
    {
    }

    public function intReturn() : int
    {
    }

    public function floatReturn() : float
    {
    }

    public function stringReturn() : string
    {
    }

    public function boolReturn() : bool
    {
    }

    public function selfReturn() : self
    {
    }

    public function parentReturn() : parent
    {
    }

    public function classReturn() : ReturnTypeHintedClass
    {
    }

    public function otherClassReturn() : InternalHintsClass
    {
    }
}

<MSG> Adding `void` to the possible return type hints in the test assets

<DFF> @@ -4,6 +4,10 @@ namespace ZendTest\Code\TestAsset;
 
 class ReturnTypeHintedClass
 {
+    public function voidReturn() : void
+    {
+    }
+
     public function arrayReturn() : array
     {
     }

Adding `void` to the possible return type hints in the test assets