[("tests/examples/Lambda0.hs:1:1-17: Warning: Redundant lambda\nFound:\n f a = \\ x -> x + x\nPerhaps:\n f a x = x + x\n",[Replace {rtype = Decl, pos = SrcSpan {startLine = 1, startCol = 1, endLine = 1, endCol = 18}, subts = [("body",SrcSpan {startLine = 1, startCol = 13, endLine = 1, endCol = 18}),("a",SrcSpan {startLine = 1, startCol = 3, endLine = 1, endCol = 4}),("b",SrcSpan {startLine = 1, startCol = 8, endLine = 1, endCol = 9})], orig = "f a b = body"}])]