Poor error message when trying to import non-existent class methods

$ cat A.hs 
module A where

class C a where
  foo :: a -> Int
  bar :: a -> Int
$ cat B.hs
module B where

import A (C (foo, bar, baz))

instance C Int where
  foo = id
  bar = id
$ ghci B.hs
GHCi, version 8.4.2: http://www.haskell.org/ghc/  :? for help
[1 of 2] Compiling A                ( A.hs, interpreted )
[2 of 2] Compiling B                ( B.hs, interpreted )

B.hs:3:11: error: Module ‘A’ does not export ‘C(foo, bar, baz)’
  |
3 | import A (C (foo, bar, baz))
  |           ^^^^^^^^^^^^^^^^^
Failed, one module loaded.

If you're importing a dozen or so methods, not mentioning the specific method that couldn't be imported gets quite annoying.

Trac metadata

Trac field	Value
Version	8.4.2
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
Test case
Differential revisions
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Operating system
Architecture

changed milestone to %8.6.1

changed weight to 5

added Tbug Trac import labels

mentioned in commit f7d3054a

closed

Good idea, thank you! And fairly easy to implement.

Trac metadata

Trac field	Value
Resolution	Unresolved → ResolvedFixed
Test case	- → module/mod81, mod91

added Pnormal label