[Development] Toolability of mixing QML and JS

[Bubke Marco]

Rutledge Shawn:
> But you have the AST right?  So why not modify that and then regenerate the code by pretty-printing the expression?

At this level we have no AST. The value of x could changed in a different place too, so we could be never sure that
parent.leftPadding = x - 30.