BackfillFnTokenTest: minor test order tweak

The test cases weren't listed in the same order as they were found in the test case file.

Author: jrfnl

tests/Core/Tokenizer/BackfillFnTokenTest.php

@@ -653,14 +653,14 @@ public function dataNotAnArrowFunction()
                 'Fn',
             ],
             ['/* testNonArrowObjectMethodCall */'],
-            [
-                '/* testNonArrowNamespacedFunctionCall */',
-                'Fn',
-            ],
             [
                 '/* testNonArrowObjectMethodCallUpper */',
                 'FN',
             ],
+            [
+                '/* testNonArrowNamespacedFunctionCall */',
+                'Fn',
+            ],
             ['/* testNonArrowNamespaceOperatorFunctionCall */'],
             ['/* testLiveCoding */'],
         ];