[("tests/examples/Default72.hs:1:7-17: Warning: Use catMaybes\nFound:\n  mapMaybe id\nPerhaps:\n  catMaybes\n",[Replace {rtype = Expr, pos = SrcSpan {startLine = 1, startCol = 7, endLine = 1, endCol = 18}, subts = [], orig = "catMaybes"}])]