eval_vec; removed CALL form and raw syntax in favor of more lisp-like function calls as raw vecs; parse_par and write_repr_par; better definition of macro.
remove assert for dbg.
renamed Set fields, added set_remove.
new_sym_from_BC.
fixed sym leaks.
handle variadic parameters.
fix assert_hash_bucket_is_valid.
fix env leak.
split global env to mitigate retain cycles during core bootstrapping.