Currently codegen stim only generate comments with the "msg" field. The discussion here would be if we want to also codegen comments with the "inputs" field for debug.info stmt.
The original intention for this feature is the comment will get inserted by rewrite, so the inputs field is always empty.
One solution is always forward __str__ or __repr__ for the elements in the inputs.
However, the issue is that its hard to know what will be in the inputs.