[jhc] darcs patch: properly perform the float outward optim... (and 2 more)

Mon Jan 31 02:32:06 PST 2011 John Meacham * properly perform the float outward optimization on case scrutinees Tue Feb 1 22:17:56 PST 2011 John Meacham * modify jhc-prim Tue Feb 1 23:26:48 PST 2011 John Meacham * when a type error occurs when dumping core, show the error after dumping the text of the core.