[GHC] Batch modify: #8809, #10073, #10179

Batch modification to #8809, #10073, #10179 by thomie: related to #8809,#10073,#10179 -- Tickets URL: http://ghc.haskell.org/trac/ghc/query?id=8809%2C10073%2C10179 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler