shorten functions

Author: michael-rubel

tests/Unit/Complex/FullNameTest.php

@@ -59,15 +59,11 @@
 });
 
 test('full name is macroable', function () {
-    FullName::macro('surname', function () {
-        return $this->split[1];
-    });
+    FullName::macro('surname', fn () => $this->split[1]);
     $valueObject = new FullName('Anna Ewa Kowalska');
     $this->assertSame('Ewa', $valueObject->surname());
 
-    FullName::macro('inverse', function () {
-        return $this->split = $this->split->reverse();
-    });
+    FullName::macro('inverse', fn () => $this->split = $this->split->reverse());
     $valueObject = new FullName('Nowak-Kowalska Ewa Anna');
     $valueObject->inverse();
     $this->assertSame('Anna', $valueObject->firstName());