Main new feature

• Haskell: the --functor option now produces position-annotated ASTs [#176,#327]. Thanks @Commelina!

Bug fixes and small improvements

• Haskell: fix generated Makefile and test parser for --glr mode [#340]
• Haskell(/GADT): generated modules import Prelude explicitly, compatible with {-# LANGUAGE NoImplicitPrelude #-}
• Haskell: generated code is warning free [#331]
• Haskell: generated printer more robust wrt. identifier clashes [#337]
• Haskell/C: handle token constructors in define expressions [#338]
• Java/ANTLR: removed more superfluous quotation in lexer character sets [#329]
• Ocaml: fix syntax error in generated printer [#330]
• LBNF: more sanity checks [#339]
• Tested with GHC 9.0