-tcfail019.hs:19: No instance for: `B [tamO]'
+tcfail019.hs:19: No instance for: `B [tamn]'
arising from an instance declaration at tcfail019.hs:19
When checking methods of an instance declaration
-tcfail019.hs:19: No instance for: `C [tamO]'
+tcfail019.hs:19: No instance for: `C [tamn]'
arising from an instance declaration at tcfail019.hs:19
When checking methods of an instance declaration
-tcfail019.hs:19: No instance for: `B [tamO]'
+tcfail019.hs:19: No instance for: `B [tamn]'
arising from an instance declaration at tcfail019.hs:19
When checking superclass constraints of an instance declaration
-tcfail019.hs:19: No instance for: `C [tamO]'
+tcfail019.hs:19: No instance for: `C [tamn]'
arising from an instance declaration at tcfail019.hs:19
When checking superclass constraints of an instance declaration