[Pharo-project] why RefactoringEnvironment requires AST-Core

[stephane ducasse]

Hi lukas

we would like to reuse the BrowserEnvironment for an experiment and I saw


                package: 'Refactoring-Environment' with: [ spec requires: 
'AST-Core' ];
                package: 'Refactoring-Tests-Environment' with: [ spec requires: 
'Refactoring-Environment' ];

Do you know if this is correct?
And why?

Stef