[Hat] Proposal, Hierarchical module structure for tools

[Neil Mitchell]

Hi

> Highlight is used by all the tools though, so Tracing.Hat.Highlight
> would make much more sense.

For the module that gives an abstract data structure for a
"Highlighted expression"

> > In that case how about Tracing.Hat.Coverage.Highlight

For the module that generates coverage data in a highlighted data structure.

I think everyone agrees pretty much now :)

Thanks

Neil