New and improved ghc-in-ghci target

[Matthew Pickering]

Hi all,

My patch to improve the ghc-in-ghci target just got merged a few
minutes ago. Now from a clean tree it  only takes a few minutes to
launch the target. You can now load ghc into ghci by running the
following script:

./hadrian/ghci.sh

https://gitlab.haskell.org/ghc/ghc/tree/master/hadrian#fast-feedback-using-ghci

Please try it out and open tickets if there are any issues on your system.

Matt