[JS IR BE] Reflection support

libraries/stdlib/js/irRuntime/hacks.kt

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the license/LICENSE.txt file.
+ */
+
+package kotlin
+
+// TODO: Ignore FunctionN interfaces
+
+public interface Function0<out R> : Function<R> {
+    public operator fun invoke(): R
+}
+
+public interface Function1<in P1, out R> : Function<R> {
+    public operator fun invoke(p1: P1): R
+}
+
+public interface Function2<in P1, in P2, out R> : Function<R> {
+    public operator fun invoke(p1: P1, p2: P2): R
+}
+
+public interface Function3<in P1, in P2, in P3, out R> : Function<R> {
+    public operator fun invoke(p1: P1, p2: P2, p3: P3): R
+}
+
+public inline fun <reified T> arrayOfNulls(size: Int): Array<T?> = js("[]")  // FIXME: Implement
+