[commit: ghc] wip/oneShot's head updated: Preserve oneShotInfo in CoreTidy (81af069)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

Branch 'wip/oneShot' now includes:

     7b59db2 `M-x delete-trailing-whitespace` & `M-x untabify`
     a3312c3 testsuite: Fix outdated output for T5979/safePkg01
     0a290ca Add new `Data.Bifunctor` module (re #9682)
     9e2cb00 Optimise atomicModifyIORef' implementation (#8345)
     0e1f0f7 Un-wire `Integer` type (re #9714)
     0013613 Deactivate T3064 `max_bytes_used`-check
     49b05d6 Improve performance of isSuffixOf (#9676)
     1874501 Typo in comment
     aa2ceba Normalise package key hash to make tests less fragile.
     63918e6 Add n-ary version of `two_normalisers` to testsuite lib
     3d6422b testlib: Get rid of two_normalisers
     98ed815 Make iterateFB inlineable
     f653aab Add GHC.Prim.oneShot
     04ad665 Add oneShot demo file
     5b0aefa Make travis happy
     67abb9c Use oneShot in the definition of foldl etc.
     7df4ba4 Put one-Shot info in the interface
     81af069 Preserve oneShotInfo in CoreTidy