refactor: Fix phpstan function.inner (#9377)

Author: neznaika0

tests/system/CommonHelperTest.php

@@ -142,13 +142,13 @@ public function testHelperLoadsAppHelperFirst(): void
 
         // this chunk is not needed really; just added so that IDEs will be happy
         if (! function_exists('foo_bar_baz')) {
-            function foo_bar_baz(): string
+            function foo_bar_baz(): string // @phpstan-ignore function.inner
             {
                 return __FILE__;
             }
         }
 
-        $this->assertSame($this->dummyHelpers[0], foo_bar_baz()); // @phpstan-ignore-line function.notFound
+        $this->assertSame($this->dummyHelpers[0], foo_bar_baz()); // @phpstan-ignore function.notFound
     }
 
     public function testNamespacedHelperNotFound(): void

utils/phpstan-baseline/function.inner.neon

@@ -17,7 +17,6 @@ includes:
     - empty.property.neon
     - expr.resultUnused.neon
     - function.alreadyNarrowedType.neon
-    - function.inner.neon
     - generator.valueType.neon
     - isset.offset.neon
     - isset.property.neon