[commit: ghc] wip/T9900's head updated: Support pattern synonyms in GHCi (fixes #9900) (e6558f2)

[git at git.haskell.org]

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

Branch 'wip/T9900' now includes:

     4f80084 Update pretty and random submodules
     2ba36b6 Update containers submodule to 0.5.6.2 release
     cf0a55d For :info, return all matching Names, rather than complaining about ambiguity
     eb4d96e Comments only
     bb06039 Bump version to 7.10.0
     a8c556d Fix typo in GLASGOW_HASKELL_PATCHLEVEL2 macro
     e6558f2 Support pattern synonyms in GHCi (fixes #9900)