[GHC] #11158: Combine exprIsTrivial and cpe_ExprIsTrivial

[GHC]

#11158: Combine exprIsTrivial and cpe_ExprIsTrivial
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        Reporter:  simonpj           |                Owner:
            Type:  task              |               Status:  infoneeded
        Priority:  highest           |            Milestone:  8.2.1
       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):  Phab:D1656
       Wiki Page:                    |
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Comment (by nomeata):

 Right. Note that you do not actually have to ''use'' the GHC API, it is
 sufficient to link against it:
 {{{
 import GHC
 import System.Exit
 main :: IO ()
 main = putStrLn "Hi" >> exitSuccess >> GHC.runGhc undefined (return ())
 }}}
 (can you confirm that?)

 Note that with my change, I could tickle the crash (assuming its the same
 crash) without linking against `ghc`, but the cause is still somewhere in
 `base` or `ghc-prim`.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11158#comment:27>
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