Add support for Golo language

samples/Golo/logdeco.golo

@@ -0,0 +1,65 @@
+
+module samples.LogDeco
+
+function log1 = |msg| {
+    return |fun| {
+        return |args...| {
+            println(msg)
+            return fun: invokeWithArguments(args)
+        }
+    }
+}
+
+@log1("calling foo")
+function foo = |a| {
+    println("foo got a " + a)
+}
+
+@log1("I'am a bar")
+function bar = |a| -> 2*a
+
+let sayHello = log1("Hello")
+
+@sayHello
+function baz = -> "Goodbye"
+
+function log2 = |msgBefore| -> |msgAfter| -> |func| -> |args...| {
+    println(msgBefore)
+    let res = func: invokeWithArguments(args)
+    println(msgAfter)
+    return res
+}
+
+@log2("enter foo")("exit foo")
+function spam = |a| {
+    println("foo: " + a)
+}
+
+function logEnterExit = |name| -> log2("# enter " + name)("# exit " + name)
+
+@logEnterExit("bar")
+function egg = { println("doing something...") }
+
+function main = |args| {
+
+    foo("bar")
+    
+    println("---")
+    println(bar(21))
+    
+    println("---")
+    println(baz())
+
+    println("---")
+    spam("bar")
+
+    println("---")
+    egg()
+
+    println("---")
+    let strange_use = log2("hello")("goodbye")({println(":p")})
+    strange_use()
+
+    println("---")
+    log2("another")("use")(|a|{println(a)})("strange")
+}