[("tests/examples/Unsafe4.hs:1:24: Warning: Redundant $\nFound:\n unsafePerformIO $ Multimap.newIO\nWhy not:\n unsafePerformIO Multimap.newIO\n",[Replace {rtype = Expr, pos = SrcSpan {startLine = 1, startCol = 24, endLine = 1, endCol = 56}, subts = [("a",SrcSpan {startLine = 1, startCol = 24, endLine = 1, endCol = 39}),("b",SrcSpan {startLine = 1, startCol = 42, endLine = 1, endCol = 56})], orig = "a b"}])]