reformatting
some more error messages
start to write error messages
prepare for the modern error handling of Menhir
setup tests for dune
migration draft on dune
Unified compilation of lusi and lus filesDifferent parsers yet but shared process.In case of lusi input the C backend is bypassed since the .h is generated from the lusic and no C code should be generated since it may overwrite existing manually written code...
Some refactoringAdapted the parser/types/constructors for cocospec syntax