[("tests/examples/Import18.hs:1:1: Warning: Use hierarchical imports\nFound:\n import Char (foo)\nWhy not:\n import Data.Char (foo)\n",[Replace {rtype = ModuleName, pos = SrcSpan {startLine = 1, startCol = 8, endLine = 1, endCol = 12}, subts = [], orig = "Data.Char"}])]