convertExpr (P.TupleLiteral exprs) = do
  converted <- mapM convertExpr exprs
  return $ E.TupleLiteral converted
convertExpr (P.TupleLiteral exprs) = do
  converted <- mapM convertExpr exprs
  return $ E.TupleLiteral converted
convertExpr (P.TupleLiteral exprs) = do
  converted <- mapM convertExpr exprs
  return $ E.TupleLiteral converted