[K/N][Tests] Move some codegen tests to new infra: annotations..coroutines

^KT-61259

native/native.tests/testData/codegen/branching/when7.kt

@@ -0,0 +1,17 @@
+/*
+ * 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 file.
+ */
+
+package codegen.branching.when7
+
+import kotlin.test.*
+
+@Test fun runTest() {
+    main(emptyArray())
+}
+
+fun main(args: Array<String>) {
+    val b = args.size < 1
+    val x = if (b) Any() else throw Error()
+}