factor

Author	SHA1	Message	Date
Joe Groff	a3033e885a	make effect variables part of effect syntax, stored out of band in effect tuple	2010-03-05 13:30:10 -08:00
Joe Groff	1b1ccb71a4	make tests pass	2010-03-04 22:43:01 -08:00
Joe Groff	053ba583fc	improve error reporting	2010-03-04 21:51:49 -08:00
Joe Groff	31640ea9c6	nested scopes were messing up stack checker state	2010-03-04 20:15:26 -08:00
Joe Groff	23de281186	initial implementation of row-polymorphism check	2010-03-04 19:30:08 -08:00