Fixes wrong order arguents

Author: jaapio

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

@@ -61,8 +61,8 @@ public function matches($object): bool
      */
     protected function doCreate($object, StrategyContainer $strategies, ?Context $context = null)
     {
-        Assert::isInstanceOf(Param::class, $object);
-        Assert::isInstanceOf(Variable::class, $object->var);
+        Assert::isInstanceOf($object, Param::class);
+        Assert::isInstanceOf($object->var, Variable::class);
         $default = null;
         if ($object->default !== null) {
             $default = $this->valueConverter->prettyPrintExpr($object->default);

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

@@ -54,8 +54,7 @@ public function testCreate()
         $factory = new ProjectFactoryStrategies([]);
 
         $argMock = m::mock(Param::class);
-        $argMock->var = new stdClass;
-        $argMock->var->name = 'myArgument';
+        $argMock->var = new \PhpParser\Node\Expr\Variable('myArgument');
         $argMock->default = new String_('MyDefault');
         $argMock->byRef = true;
         $argMock->variadic = true;