[Haskell-cafe] Can we improve Show instance for non-ascii charcters?

[Imants Cekusins]

> Two modules defining different instances for the same class and type can't be used together.

it is possible to define conflicting instances for the same class/type
in modules that don't import one another - without strange results,
isn't it?

or conflicting instances must not exist within the same app, including libs?