Create delegate test

mirai-debug/src/main/kotlin/test/DelegateTest.kt

@@ -0,0 +1,26 @@
+package test
+
+import kotlin.reflect.KProperty
+
+
+data class Info(
+    var value: Int
+) {
+    operator fun getValue(c: C, property: KProperty<*>): Int {
+        return value
+    }
+}
+
+class C(var info: Info) {
+    val value by info
+}
+
+fun main() {
+    val info = Info(1)
+    val c = C(info)
+    println(c.value) //1
+    info.value = 2
+    println(c.value) //2
+    c.info = Info(3)
+    println(c.value) //2
+}