[("tests/examples/Default15.hs:1:7-32: Suggestion: Use list comprehension\nFound:\n  if b < 42 then [a] else []\nPerhaps:\n  [a | b < 42]\n",[Replace {rtype = Expr, pos = SrcSpan {startLine = 1, startCol = 7, endLine = 1, endCol = 33}, subts = [("b",SrcSpan {startLine = 1, startCol = 10, endLine = 1, endCol = 16}),("x",SrcSpan {startLine = 1, startCol = 23, endLine = 1, endCol = 24})], orig = "[x | b]"}])]