Woo! Very basic lambdas!

tests/test_lambda.krak

@@ -0,0 +1,25 @@
+import io:*
+
+fun runLambda(func: fun():int):void {
+    println(func())
+}
+
+fun callLambda(func: fun(int):void):void {
+    func(10)
+}
+
+fun itr<T>(it: T, func: fun(T):T):T {
+    println(it)
+    return func(it);
+}
+
+fun main():int {
+    var func = fun():void { println("8"); }
+    func()
+    runLambda(fun():int { return 9;})
+    callLambda(fun(a:int):void { println(a);})
+    var j = 0
+    while (j < 10) j = itr(j, fun(a:int):int { return a+1; })
+    return 0
+}
+