Fix a few parsing bugs at both levels, port some of the method demo over to new_kraken

new_kraken_test.kp

@@ -1,3 +1,5 @@
 #lang (with_import "./new_kraken.kp" new_kraken_untyped)
-
-(println "THIS IS ININ the real real finally")
+{
+    let my_var = 1337
+    (println $"this is string interpolation: $(+ 1 3 4) <- cool right? another $my_var yep even variables")
+}