Discussion: adding displayException to Exception class

[Simon Peyton Jones]

|  * the fact that deriving Show is directly supported by the compiler
|  (contrary to Binary, for example) making it easier to use Show than
|  more appropriate alternatives.  If we think Show is the wrong solution
|  for serialisation, then maybe the compiler should provide equivalent
|  support for a more adequate solution, for example?

yes, that's quite possible.