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Custom message when showing functions, comparing functions, ...

One of the examples of type errors:

instance TypeError (Text "Cannot 'Show' functions." :$$: 
                    Text "Perhaps there is a missing argument?")
         => Show (a -> b) where
   showsPrec = error "unreachable"

We already have Text.Show.Functions, is there a place in base for this along with Ord (a -> b) instances and co.

Trac metadata
Trac field Value
Version 7.10.3
Type FeatureRequest
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture
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