[commit: ghc] wip/travis's head updated: Try travis with CPUS=2 (a179572)

[git at git.haskell.org]

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

Branch 'wip/travis' now includes:

     c973c70 Add a clarifying comment about scoping of type variables in associated type decls
     f6f4f54 White space only
     f692e8e Define PrelNames.allNameStrings and use it in TcHsType
     9b8ba62 Entirely re-jig the handling of default type-family instances (fixes Trac #9063)
     d761654 Improve documentation of :set/:seti
     0fcf060 Improve documentation of overlapping instances (again)
     a065f9d Try to explain the applicativity problem
     34ec0bd Rewrite coercionRole. (#9233)
     5e7406d Optimise optCoercion. (#9233)
     3b8b826 Workaround haddock parser error caused by 5e7406d9
     a179572 Try travis with CPUS=2