[GHC] Batch modify: #9137, #9601, #10804

Batch modification to #9137, #9601, #10804 by thomie: failure to Runtime performance bug Comment: These tickets are related to runtime performance. -- Tickets URL: http://ghc.haskell.org/trac/ghc/query?id=9137%2C9601%2C10804 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler