[K/N][tests] Added a bunch of tests on incremental compilation

native/native.tests/testData/caches/ic/addMethodToOpenClass2/main/main.kt

@@ -0,0 +1,12 @@
+import kotlin.test.*
+import test1.*
+import test2.*
+
+class C : B() {
+    override fun bar() = "qzz"
+}
+
+@Test
+fun runTest() {
+    assertEquals("qzz", bar(C()))
+}