readFail001.hs:25:11:
    The fixity signature for `+#' lacks an accompanying binding

readFail001.hs:38:32:
    Not in scope: type constructor or class `Leaf'

readFail001.hs:38:41:
    Not in scope: type constructor or class `Leaf'

readFail001.hs:87:11: Not in scope: `x'

readFail001.hs:88:19: Not in scope: `x'

readFail001.hs:94:19: Not in scope: `isSpace'

readFail001.hs:95:13: Not in scope: `foo'

readFail001.hs:107:30: Not in scope: data constructor `Foo'

readFail001.hs:107:42: Not in scope: data constructor `Bar'

readFail001.hs:112:23:
    Not in scope: type constructor or class `Foo'