[Tests] Test samples from KEEP

compiler/testData/diagnostics/tests/extensions/contextReceivers/fromKEEP/iterableClass.kt

@@ -0,0 +1,16 @@
+typealias IterableClass<C, T> = (C) -> Iterator<T>
+
+context(IterableClass<C, T>)
+fun <C, T> C.iterator(any: Any?): Iterator<T> = this@IterableClass.invoke(this)
+
+fun <T> listOf(vararg items: T): List<T> = null!!
+
+fun test() {
+    val f: IterableClass<List<Int>, Int> = {
+        it.listIterator()
+    }
+    with(f) {
+        listOf(1, 2, 3).iterator(null)
+    }
+    listOf(1, 2, 3).<!NO_CONTEXT_RECEIVER!><!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>iterator<!>(null)<!>
+}