tcfail167.hs:14:1: error: [-Woverlapping-patterns (in -Wdefault), -Werror=overlapping-patterns]
    Pattern match is redundant
    In an equation for ‘inaccessible’: inaccessible C2 = ...

tcfail167.hs:14:14: error: [-Winaccessible-code (in -Wdefault), -Werror=inaccessible-code]
    • Couldn't match type ‘Char’ with ‘Float’
      Inaccessible code in
        a pattern with constructor: C2 :: T Float,
        in an equation for ‘inaccessible’
    • In the pattern: C2
      In an equation for ‘inaccessible’: inaccessible C2 = ' '