[("tests/examples/Default99.hs:1:7-21: Warning: Redundant $!\nFound:\n return $! (a, b)\nPerhaps:\n return (a, b)\n",[Replace {rtype = Expr, pos = SrcSpan {startLine = 1, startCol = 7, endLine = 1, endCol = 22}, subts = [("f",SrcSpan {startLine = 1, startCol = 7, endLine = 1, endCol = 13}),("x",SrcSpan {startLine = 1, startCol = 17, endLine = 1, endCol = 22})], orig = "f x"}])]