[GHC] #11335: Add instance (Ix a, Read a, Read b) => Read (UArray a b)

[GHC]

#11335: Add instance (Ix a, Read a, Read b) => Read (UArray a b)
-------------------------------------+-------------------------------------
           Reporter:  rwbarton       |             Owner:
               Type:  feature        |            Status:  new
  request                            |
           Priority:  normal         |         Milestone:
          Component:  libraries      |           Version:  7.8.3
  (other)                            |
           Keywords:  array          |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
-------------------------------------+-------------------------------------
 `Array` has `Eq`, `Ord`, `Show` and `Read` instances but `UArray` only has
 `Eq`, `Ord` and `Show`. Add the missing `Read` instance.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11335>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler