Add unit test showing null Methodinvocation type

[greg-dennis]

What's changed?

What's your motivation?

Add unit test showing null Methodinvocation type. This test fails in this repo but the very same test passes when added to the rewrite repo.

Anything in particular you'd like reviewers to focus on?

Anyone you would like to review specifically?

Have you considered any alternatives or workarounds?

Any additional context

Checklist

• [ ] I've added unit tests to cover both positive and negative cases
• [ ] I've read and applied the recipe conventions and best practices
• [ ] I've used the IntelliJ IDEA auto-formatter on affected files