bug #4219 NativeFunctionCasingFixer - handle T_RETURN_REF (kubawerlos)

This PR was squashed before being merged into the 2.12 branch (closes #4219).

Discussion
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 NativeFunctionCasingFixer - handle T_RETURN_REF

Fixes #4218

Ping @umulmrum (as reporter) and @SpacePossum (as original author) for review.

Commits
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6bf3515  NativeFunctionCasingFixer - handle T_RETURN_REF

Author: keradus

src/Fixer/Casing/NativeFunctionCasingFixer.php

@@ -15,6 +15,7 @@
 use PhpCsFixer\AbstractFixer;
 use PhpCsFixer\FixerDefinition\CodeSample;
 use PhpCsFixer\FixerDefinition\FixerDefinition;
+use PhpCsFixer\Tokenizer\CT;
 use PhpCsFixer\Tokenizer\Token;
 use PhpCsFixer\Tokenizer\Tokens;
 
@@ -67,7 +68,7 @@ protected function applyFix(\SplFileInfo $file, Tokens $tokens)
             }
 
             $functionNamePrefix = $tokens->getPrevMeaningfulToken($index);
-            if ($tokens[$functionNamePrefix]->isGivenKind([T_DOUBLE_COLON, T_NEW, T_OBJECT_OPERATOR, T_FUNCTION])) {
+            if ($tokens[$functionNamePrefix]->isGivenKind([T_DOUBLE_COLON, T_NEW, T_OBJECT_OPERATOR, T_FUNCTION, CT::T_RETURN_REF])) {
                 continue;
             }
 

tests/Fixer/Casing/NativeFunctionCasingFixerTest.php

@@ -102,6 +102,10 @@ public function gettypE()
                         function sqrT($a)
                         {
                         }
+
+                        function &END($a)
+                        {
+                        }
                     }
                 ',
             ],
@@ -130,6 +134,24 @@ function sqrT($a)
                     $a->STRTOLOWER();
                 ',
             ],
+            [
+                '<?php
+                    namespace Foo {
+                        function &Next() {
+                            return prev(-1);
+                        }
+                    }',
+            ],
+            [
+                '<?php
+                    $next1 = & next($array1);
+                    $next2 = & \next($array2);
+                ',
+                '<?php
+                    $next1 = & Next($array1);
+                    $next2 = & \Next($array2);
+                ',
+            ],
         ];
     }