fix: mangle member name in deletion generator (#1458)

src/Concretize.hs

@@ -921,7 +921,7 @@ concreteDeleteTakePtr typeEnv env members =
 memberDeletionGeneral :: String -> TypeEnv -> Env -> (String, Ty) -> String
 memberDeletionGeneral separator typeEnv env (memberName, memberType) =
  case findFunctionForMember typeEnv env "delete" (typesDeleterFunctionType memberType) (memberName, memberType) of
- FunctionFound functionFullName -> " " ++ functionFullName ++ "(p" ++ separator ++ memberName ++ ");"
+ FunctionFound functionFullName -> " " ++ functionFullName ++ "(p" ++ separator ++ mangle memberName ++ ");"
  FunctionNotFound msg -> error msg
  FunctionIgnored -> " /* Ignore non-managed member '" ++ memberName ++ "' : " ++ show memberType ++ " */"