[jhc] darcs patch: remove most of PackedString.hs (and 4 more)

30 Jan 2012

      Sun Jan 29 05:34:31 PST 2012  John Meacham <john@repetae.net>
  * remove most of PackedString.hs

Sun Jan 29 06:45:24 PST 2012  John Meacham <john@repetae.net>
  * add mtick', use it when stringtable overloaded enabled

Sun Jan 29 07:49:25 PST 2012  John Meacham <john@repetae.net>
  * move Module to containing an atom instead of a string

Sun Jan 29 08:27:43 PST 2012  John Meacham <john@repetae.net>
  * properly report ambiguity on re-defined top-level names

Sun Jan 29 16:40:41 PST 2012  John Meacham <john@repetae.net>
  * fix bug in const. primitive decoding