Update examples

testsuite/eval/eval_fn/Main.hs

@@ -0,0 +1,10 @@
+--
+-- lambda abstraction!
+--
+--
+-- needs unsafeEval because eval has a broken Dynamic check
+--
+import System.Eval.Haskell
+
+main = do fn <- unsafeEval "(\\x -> (x,x::Int))" [] :: IO (Maybe (Int -> (Int,Int)))
+          when (isJust fn) $ putStrLn $ show $ (fromJust fn) 7

testsuite/eval/eval_fn/Makefile

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+TOP=../../..
+include ../../eval.mk

testsuite/eval/eval_fn/expected

@@ -0,0 +1 @@
+(7,7)