Fix inline function ignore

Functions can be defined inline, as we are not really processing
inline functions ignore them for now.

src/phpDocumentor/Reflection/Php/Factory/Function_.php

@@ -33,7 +33,7 @@ final class Function_ extends AbstractFactory implements ProjectFactoryStrategy
 {
     public function matches(ContextStack $context, object $object): bool
     {
-        return $object instanceof FunctionNode;
+        return $object instanceof FunctionNode && $context->peek() instanceof FileElement;
     }
 
     /**

tests/integration/FileDocblockTest.php

@@ -83,4 +83,22 @@ public function testGlobalNamespacedFunctionDefine() : void
             $project->getFiles()[$fileName]->getFunctions()
         );
     }
+
+    /**
+     * @covers \phpDocumentor\Reflection\Php\Factory\File::create
+     * @covers \phpDocumentor\Reflection\Php\Factory\File::<private>
+     */
+    public function testFileWithInlineFunction() : void
+    {
+        $fileName =  __DIR__ . '/data/GlobalFiles/inline_function.php';
+        $project = $this->fixture->create(
+            'MyProject',
+            [new LocalFile($fileName)]
+        );
+
+        $this->assertCount(
+            1,
+            $project->getFiles()[$fileName]->getClasses()
+        );
+    }
 }

tests/unit/phpDocumentor/Reflection/Php/Factory/Function_Test.php

@@ -63,7 +63,7 @@ public function testMatches(): void
     {
         $this->assertFalse($this->fixture->matches(self::createContext(null), new stdClass()));
         $this->assertTrue($this->fixture->matches(
-            self::createContext(null),
+            self::createContext(null)->push(new File('hash', 'path')),
             $this->prophesize(\PhpParser\Node\Stmt\Function_::class)->reveal()
         ));
     }