[("tests/examples/Lambda27.hs:1:7: Warning: Avoid lambda\nFound:\n \\ x y -> op y x\nWhy not:\n flip op\n",[Replace {rtype = Expr, pos = SrcSpan {startLine = 1, startCol = 7, endLine = 1, endCol = 21}, subts = [("x",SrcSpan {startLine = 1, startCol = 15, endLine = 1, endCol = 17})], orig = "flip x"}])]