[GHC] #11076: Demand information of foreign calls is wrong

[GHC]

#11076: Demand information of foreign calls is wrong
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        Reporter:  luite             |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  7.10.3
       Component:  Compiler          |              Version:  7.10.2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by luite):

 Changing the argument demand type from `evalDmd` to `topDmd` (in
 `MkId.mkFCallId`) fixes the problem for this test case and for GHCJS, and
 other than a minor (and I think harmless) change in one of the `stranal`
 test cases doesn't cause any validate issues.

 I just want to make sure, is this a sane thing to do?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11076#comment:3>
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