[GHC] #8704: Use GHC.Exts.build in randoms, randomRs to achieve fusion

[GHC]

#8704: Use GHC.Exts.build in randoms, randomRs to achieve fusion
-------------------------------------+------------------------------------
        Reporter:  ion1              |            Owner:  rrnewton
            Type:  feature request   |           Status:  closed
        Priority:  normal            |        Milestone:  7.10.1
       Component:  libraries/random  |          Version:  7.9
      Resolution:  fixed             |         Keywords:  fusion
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:  #4218
-------------------------------------+------------------------------------
Changes (by thoughtpolice):

 * milestone:  7.8.4 => 7.10.1


--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8704#comment:7>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler