KT-3557: with() made it to stdlib

libraries/stdlib/src/kotlin/Standard.kt

@@ -51,3 +51,8 @@ public inline fun <A,B> A.to(that: B): Pair<A, B> = Pair(this, that)
 Run function f
 */
 public inline fun <T> run(f: () -> T) : T = f()
+
+/**
+ * Execute f with given receiver
+ */
+public inline fun <T, R> with(receiver: T, f: T.() -> R) : R = receiver.f()