tcfail082.hs:2:1: error:
    Could not find module ‘Data82’
    Use -v (or `:set -v` in ghci) to see a list of the files searched for.

tcfail082.hs:3:1: error:
    Could not find module ‘Inst82_1’
    Use -v (or `:set -v` in ghci) to see a list of the files searched for.

tcfail082.hs:4:1: error:
    Could not find module ‘Inst82_2’
    Use -v (or `:set -v` in ghci) to see a list of the files searched for.