Expose 'moduleToPkgConfAll' from 'PackageState'
Expose 'moduleToPkgConfAll' from 'PackageState'

Summary:
Having direct access to this field is going to enable Haddock to
compute in batch which modules to load before looking up instances
of external packages.

Reviewers: bgamari, monoidal

Reviewed By: monoidal

Subscribers: rwbarton, carter

Differential Revision: https://phabricator.haskell.org/D5100

sdiehl/ghc,sdiehl/ghc,sdiehl/ghc,sdiehl/ghc,sdiehl/ghc,sdiehl/ghc,sdiehl/ghc