slang now outputs the graph

Signed-off-by: Tim Henderson <tim.tadh@gmail.com>
removed fib-for from repo

Signed-off-by: Tim Henderson <tim.tadh@gmail.com>
fixed misspelling of definition

Signed-off-by: Tim Henderson <tim.tadh@gmail.com>
slang now has a --dataflow flag for printing dataflow compuation

Signed-off-by: Tim Henderson <tim.tadh@gmail.com>
updated git ignore

Signed-off-by: Tim Henderson <tim.tadh@gmail.com>
test script now allows customized run

Signed-off-by: Tim Henderson <tim.tadh@gmail.com>
Merge branch 'while_loop' into break_stmt

- the tests fail because the break_stmt branch is broken.
- the cfg is wrong there is an extra node (only one exit should be
  available from the loop)
- the cyclic control flow analysis is badly broken

Signed-off-by: Tim Henderson <tim.tadh@gmail.com>

Conflicts:
	cf/cf.py
Fixed control flow analysis of loops

Now I just need to write the dataflow analysis which is always annoying
because it is kinda hard to reason about.

Signed-off-by: Tim Henderson <tim.tadh@gmail.com>