- Inserted additional check for equality types in check_mode_clause that
avoids ill-typed code to be generated.
- Mode inference algorithm now outputs additional diagnostic messages.
Itrev = Main +
consts itrev :: 'a list => 'a list => 'a list
primrec
"itrev [] ys = ys"
"itrev (x#xs) ys = itrev xs (x#ys)"
end