suggestion: add a .ehs file type

[Alex Jacobson]

Ok, added as a feature request.

http://hackage.haskell.org/trac/ghc/ticket/1921#preview

Simon Peyton-Jones wrote:
> | So, my suggestion is that in any case where the compiler currently
> | suggests use of a particular pragma in an error message, it should
> | instead turn that pragma on and produce a warning.
> 
> In the cases where the compiler makes that suggestion, yes what you suggest would be feasible I think.  But it would be patchy and ad hoc -- often the compiler would "do the right thing" (at least as you see it), but sometimes not.
> 
> Nevertheless, patchy and ad-hoc solutions are sometimes very convenient.  I certainly agree that messages of the form "bad programmer, you clearly meant X but you didn't *write* X; so go write X and then I'll compile your program" are tiresome.
> 
> Why not make it a feature request and try to get people to vote for it (by adding themselves to the cc list and/or adding comments)?
> 
> Simon