Merge branch 'master' into ghci/spelling-suggestions-in-info

libraries/Cabal

libraries/base/Data/Enum.hs

libraries/base/Data/OldList.hs

libraries/base/GHC/Arr.hs

libraries/base/GHC/Conc.hs

libraries/base/GHC/Conc/IO.hs

libraries/base/GHC/Desugar.hs

libraries/base/GHC/Encoding/UTF8.hs

libraries/base/GHC/Event/TimeOut.hs

libraries/base/GHC/Exception.hs

libraries/base/GHC/Exception/Type.hs

libraries/base/GHC/ExecutionStack/Internal.hsc

libraries/base/GHC/Fingerprint/Type.hs

libraries/base/GHC/Float.hs

libraries/base/GHC/Float/RealFracMethods.hs

libraries/base/GHC/GHCi.hs

libraries/base/GHC/GHCi/Helpers.hs

libraries/base/GHC/IO.hs

libraries/base/GHC/IO/Buffer.hs

libraries/base/GHC/IO/Device.hs