Skip parsing groovy generated transform methods

[jevanlingen]

What's changed?

Generated transform annotations are parsed.

What's your motivation?

• Groovy generated transform methods break parser #4254

Any additional context

Notice with these fixes the parser just ignores the groovy AST transformations. So you cannot use the 'real' AST as the bytecodes dictate in the groovy recipes. If we want to support that, we would have to do a project like rewrite-lombok.

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