EPA backports for GHC 9.4.1
This branch has cherry-picked commits of
- EPA : Remove duplicate comments in DataFamInstD e9fff12b !8171 (closed)
- Add -dkeep-comments flag to keep comments in the parser 83c67f76 !7979 (closed)
- EPA: Comment Order Reversed e2520df3 !8302 (closed)
With them in place, ghc-exactprint at https://github.com/alanz/ghc-exactprint/tree/ghc-head is able to pass its tests, as well as the new tests from the ghc-9.4 branch.
Edited by Alan Zimmerman