[GHC] Batch modify: #10558, #10567, #10742, #10540, #10753, #10609, ...

Batch modification to #10558, #10567, #10742, #10540, #10753, #10609, #10721, #10615, #10704, #10706, #10694, #10586, #10134, #8253, #10522 by thomie: milestone to 8.0.1 -- Tickets URL: http://ghc.haskell.org/trac/ghc/query?id=10558%2C10567%2C10742%2C10540%2C107... GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler