special handling of "Main.hs" contradicts Report

[Simon Marlow]

> Oops, your right.  Unfortunately this is just a bug in my 
> "bug report", 
> there still
> seems to be a contradiction with the report:
> 
>   The report leads one to believe "module Main where ..."  
> should export
>   all top-level entitities just the same as if we were 
> defining a module by another name. 

Yes, we're aware this is a bug (see my first message in this thread).  However, I think we're going to declare it as a known
divergence from the report, for two reasons: 

  - It's highly unlikely that you need to import Main, so
    you'll never notice the difference.  If you *do* need more
    exports from Main, then write 'module Main(module Main) where'.

  - interpreting 'module Main where' as 'module Main(main) where'
    leads to more efficient code (we have lots of examples
    that do this, I believe).

Cheers,
	Simon