fix: TokensAnalyzer - handle unary operator in arrow functions

phpstan.dist.neon

@@ -21,6 +21,6 @@ parameters:
         -
             message: '#^Method PhpCsFixer\\Tests\\.+::provide.+Cases\(\) return type has no value type specified in iterable type iterable\.$#'
             path: tests
-            count: 1021
+            count: 1020
     tipsOfTheDay: false
     tmpDir: dev-tools/phpstan/cache

src/Tokenizer/TokensAnalyzer.php

@@ -554,6 +554,7 @@ public function isUnaryPredecessorOperator(int $index): bool
             ';',
             '{',
             '}',
+            [T_DOUBLE_ARROW],
             [T_FN],
             [T_FUNCTION],
             [T_OPEN_TAG],

tests/Fixer/Operator/UnaryOperatorSpacesFixerTest.php

@@ -152,5 +152,9 @@ public static function provideFixCases(): iterable
             '<?php function foo($a, ...   $b) { return (--   $a) * ($b   ++);}',
             ['only_dec_inc' => true],
         ];
+
+        yield [
+            '<?php static fn(Token $t): bool => 8 === ($t->flags & 8);',
+        ];
     }
 }