[("tests/examples/List2.hs:1:5: Warning: Use list literal pattern\nFound:\n  (1 : (2 : []))\nWhy not:\n  [1, 2]\n",[Replace {rtype = Pattern, pos = SrcSpan {startLine = 1, startCol = 5, endLine = 1, endCol = 13}, subts = [("a",SrcSpan {startLine = 1, startCol = 6, endLine = 1, endCol = 7}),("b",SrcSpan {startLine = 1, startCol = 8, endLine = 1, endCol = 9})], orig = "[a, b]"}])]