drop php 5.4 in tests

Author: samsonasik

test/MutableCreationOptionsTraitTest.php

@@ -11,9 +11,6 @@
 
 use PHPUnit_Framework_TestCase as TestCase;
 
-/**
- * @requires PHP 5.4.0
- */
 class MutableCreationOptionsTraitTest extends TestCase
 {
     protected $stub;

test/ServiceLocatorAwareTraitTest.php

@@ -13,7 +13,6 @@
 use Zend\ServiceManager\ServiceManager;
 
 /**
- * @requires PHP 5.4
  * @group    Zend_ServiceManager
  */
 class ServiceLocatorAwareTraitTest extends TestCase

test/ServiceManagerTest.php

@@ -714,15 +714,13 @@ public function testGetGlobIteratorServiceWorksProperly()
 
     public function duplicateService()
     {
-        $self = $this;
-
         return [
             [
                 'setFactory',
-                function ($services) use ($self) {
-                    return $self;
+                function ($services) {
+                    return $this;
                 },
-                $self,
+                $this,
                 'assertSame',
             ],
             [
@@ -733,8 +731,8 @@ function ($services) use ($self) {
             ],
             [
                 'setService',
-                $self,
-                $self,
+                $this,
+                $this,
                 'assertSame',
             ],
         ];