[GHC] #7732: Allow killing of processes which are known by a System.Process.ProcessHandle

[GHC]

#7732: Allow killing of processes which are known by a
System.Process.ProcessHandle
----------------------------+-----------------------------------------------
Reporter:  timthelion       |          Owner:                   
    Type:  feature request  |         Status:  new              
Priority:  normal           |      Component:  libraries/process
 Version:  7.4.2-rc1        |       Keywords:                   
      Os:  Linux            |   Architecture:  Unknown/Multiple 
 Failure:  None/Unknown     |      Blockedby:                   
Blocking:                   |        Related:                   
----------------------------+-----------------------------------------------
 There is no way to kill a process that is known only by it's
 ProcessHandle.  That is, if I use createProcess to create a process, there
 is no way to kill it again.  I can terminate it with terminateProcess but
 this is not the same.

 I would like to be able to kill processes as well.

 I think that something like this(completely untested change) would be
 good:

 https://github.com/timthelion/packages-
 process/commit/10ecc56682b9b71d3c196e47297b0f496cdc2bd7

 https://github.com/timthelion/packages-
 process/commit/c4cdd064d7c154f41a5b2b7f73c6b0ac0b2dccb9

 https://github.com/timthelion/packages-
 process/commit/1588100655f18bc2811edc0a5911e2b14a1ee411

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7732>
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