DX: stop using reserved T_FN in code samples

Author: keradus

tests/Fixer/Import/OrderedImportsFixerTest.php

@@ -796,12 +796,12 @@ public function provideFix70Cases()
             [
                 '<?php
 use C\B;
-use function B\fn;
+use function B\fn_a;
 use const A\ConstA;
                 ',
                 '<?php
 use const A\ConstA;
-use function B\fn;
+use function B\fn_a;
 use C\B;
                 ',
                 [
@@ -1884,7 +1884,7 @@ public function provideFix70TypesOrderAndAlphabetCases()
 use const some\a\{ConstD};
 use const some\b\{ConstE};
 use function some\a\{fn_a, fn_b};
-use function some\a\{fn};
+use function some\a\{fn_bc};
 use function some\b\{fn_c, fn_d, fn_e};
 use function some\c\{fn_f};
 use function some\f\{fn_g, fn_h, fn_i};
@@ -1903,7 +1903,7 @@ public function provideFix70TypesOrderAndAlphabetCases()
 };
 use const some\a\{ConstD};
 use Some\Cloz;
-use function some\a\{fn};
+use function some\a\{fn_bc};
 use const some\a\{ConstA};
 use function some\b\{fn_c, fn_d, fn_e};
 use const some\a\{ConstB, ConstC as CC};
@@ -1956,7 +1956,7 @@ public function provideFix70TypesOrderAndNoneCases()
 use const some\b\{ConstE};
 use function some\f\{fn_g, fn_h, fn_i};
 use function some\c\{fn_f};
-use function some\a\{fn};
+use function some\a\{fn_x};
 use function some\b\{fn_c, fn_d, fn_e};
 use function some\a\{fn_a, fn_b};
 ',
@@ -1974,7 +1974,7 @@ public function provideFix70TypesOrderAndNoneCases()
 };
 use const some\a\{ConstD};
 use Some\Cloz;
-use function some\a\{fn};
+use function some\a\{fn_x};
 use const some\a\{ConstA};
 use function some\b\{fn_c, fn_d, fn_e};
 use const some\a\{ConstB, ConstC as CC};

tests/Fixer/Import/SingleLineAfterImportsFixerTest.php

@@ -428,12 +428,12 @@ class Test {}
             [
                 ' <?php
 use some\a\ClassA;
-use function some\a\fn;
+use function some\a\fn_a;
 use const some\c;
 
 ',
                 ' <?php
-use some\a\ClassA; use function some\a\fn; use const some\c;
+use some\a\ClassA; use function some\a\fn_a; use const some\c;
 ',
             ],
         ];