[ ghc-Bugs-1167383 ] GHCi reports too few instances

Bugs item #1167383, was opened at 2005-03-21 09:01
Message generated for change (Tracker Item Submitted) made by Item Submitter
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=108032&aid=1167383&group_id=8032

Category: GHCi
Group: None
Status: Open
Resolution: None
Priority: 4
Submitted By: Simon Peyton Jones (simonpj)
Assigned to: Nobody/Anonymous (nobody)
Summary: GHCi reports too few instances

Initial Comment:
GHCi aspires to report all instances that can be written 
unqualified in the current scope; but it doesn't.


| ~% ghci
|    ___         ___ _
|   / _ \ /\  /\/ __(_)
|  / /_\// /_/ / /  | |      GHC Interactive, version 6.4, for 
Haskell 98.
| / /_\/ __  / /___| |      http://www.haskell.org/ghc/
| \____/\/ /_/\____/|_|      Type :? for help.
| 
| Loading package base-1.0 ... linking ... done.
| 
| Prelude> :i Bool
| data Bool = False | True      -- <wired into compiler>
| instance Eq Bool      -- Imported from GHC.Base
| instance Ord Bool     -- Imported from GHC.Base
| 
| Prelude> :i Bool
| data Bool = False | True      -- <wired into compiler>
| instance Bounded Bool         -- Imported from 
GHC.Enum
| instance Enum Bool    -- Imported from 
GHC.Enum
| instance Eq Bool      -- Imported from GHC.Base
| instance Ord Bool     -- Imported from GHC.Base
| instance Read Bool    -- Imported from GHC.Read
| instance Show Bool    -- Imported from GHC.Show


----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=108032&aid=1167383&group_id=8032