[ProxyManager] fix tests

Author: nicolas-grekas

src/Symfony/Bridge/ProxyManager/Tests/LazyProxy/PhpDumper/Fixtures/proxy-implem.php

@@ -48,7 +48,7 @@ public static function staticProxyConstructor($initializer)
     {
         static $reflection;
 
-        $reflection = $reflection ?: $reflection = new \ReflectionClass(__CLASS__);
+        $reflection = $reflection ?? $reflection = new \ReflectionClass(__CLASS__);
         $instance = $reflection->newInstanceWithoutConstructor();
 
         $instance->initializer1eff735 = $initializer;
@@ -61,7 +61,7 @@ public function __construct()
         static $reflection;
 
         if (! $this->valueHolder1eff735) {
-            $reflection = $reflection ?: new \ReflectionClass(__CLASS__);
+            $reflection = $reflection ?? new \ReflectionClass(__CLASS__);
             $this->valueHolder1eff735 = $reflection->newInstanceWithoutConstructor();
         }
     }

src/Symfony/Bridge/ProxyManager/Tests/LazyProxy/PhpDumper/ProxyDumperTest.php

@@ -156,6 +156,7 @@ protected function createProxy(\$class, \Closure \$factory)
         $implem = preg_replace('#\n    /\*\*.*?\*/#s', '', $implem);
         $implem = str_replace('getWrappedValueHolderValue() : ?object', 'getWrappedValueHolderValue()', $implem);
         $implem = str_replace("array(\n        \n    );", "[\n        \n    ];", $implem);
+        $implem = str_replace('$reflection ?: $reflection', '$reflection ?? $reflection', $implem);
         $this->assertStringEqualsFile(__DIR__.'/Fixtures/proxy-implem.php', $implem);
         $this->assertStringEqualsFile(__DIR__.'/Fixtures/proxy-factory.php', $factory);