QQmlComponent::create spends too much time and memory on invalid file

1. Build the attached project.
2. Pass the attached .qml file to the resulting program:

   ./report 22923-minimized.qml
   

   It will consume about 20 seconds of time and 3.5GB of memory.

Looking at the file, it seems obviously malformed to me. Would it be possible to exit earlier?

Google's oss-fuzz found this as issue 22923.