GHC 7 changes the syntax for quasi-quotation. A later patch release
(7.0.2) should be adding back backwards-compatibility with the old
syntax, but in the meanwhile this (relatively ugly) hack should fix it.
This adds a whole bunch of polymorphism to the forms library, and opens
up a monad approach which exposes the FieldInfos generated. This allows
you to layout your form however you want without mucking around with
guessing the location of the fieldinfos in a list.