LibJS: Set length property in Object::put_native_function()

Author: https://github.com/linusg
Commit: cd3e2690eb
Pull-request: https://github.com/SerenityOS/serenity/pull/1622
Reviewed-by: https://github.com/awesomekling ✅

Libraries/LibWeb/Bindings/CanvasRenderingContext2DWrapper.cpp

@@ -44,7 +44,7 @@ CanvasRenderingContext2DWrapper::CanvasRenderingContext2DWrapper(CanvasRendering
     : m_impl(impl)
 {
     put_native_property("fillStyle", fill_style_getter, fill_style_setter);
-    put_native_function("fillRect", fill_rect);
+    put_native_function("fillRect", fill_rect, 4);
 }
 
 CanvasRenderingContext2DWrapper::~CanvasRenderingContext2DWrapper()