[commit: ghc] ghc-lwc2's head updated: Removes tabs (774af68)

[git at git.haskell.org]

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

Branch 'ghc-lwc2' now includes:

     5e2f145 Update `primitive` and `vector` packages
     1711208 Implement an unlifted Proxy type, Proxy#
     f712751 Make typeRep_RDR use typeRep# instead of typeRep
     c4ffdba Fix manual regarding current state of implicit quantification
     fa3ffb4 Release notes: mention -XEmptyCase
     eb0c7f8 Update library refs
     9b98c6d Merging master
     774af68 Removes tabs