[("tests/examples/List4.hs:1:7-15: Suggestion: Use :\nFound:\n [x] ++ xs\nPerhaps:\n x : xs\n",[Replace {rtype = Expr, pos = SrcSpan {startLine = 1, startCol = 7, endLine = 1, endCol = 16}, subts = [("x",SrcSpan {startLine = 1, startCol = 8, endLine = 1, endCol = 9}),("xs",SrcSpan {startLine = 1, startCol = 14, endLine = 1, endCol = 16})], orig = "x : xs"}])]